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China high quality Bearing Housing Sliding Block Take up UCT 204 205 Insert Ball Bearings with Set Crews Flange Units for Crane Vacuum Pump with Hot selling

Product Description



We can provide manufacturing capabilities and services of regular bearings for you, or customized non-standard bearings as you required.

  — Dimensions
  — Material
  — Tolerance standard

  — Logo (Laser Marking)
  — Package Design


With over 40 years experience of the bearing manufacturing, we know how to make good bearings with less cost consistently and efficiently.

We use advanced CNC turning, grinding, and superfinishing machines to ensure high, stable, and accurate machining.  All of your goods, from the most economical category, to the highest rated category, will always be manufactured precisely to the standards you require.


Heat treatment is 1 of the crucial processes to ensure high performance of bearing materials. Compared with other manufacturers, we can produce higher quality bearings at smaller cost, with a more flexible and controllable production schedule, and in a shorter time

We have 6 heat treatment production lines.

Bearings are heated uniformly, with small deformation and little/no oxidized decarburization, which can make them have high hardness, high fatigue resistance, good wear resistance, dimensional stability, and excellent mechanical strength.


All our products are characterized by low noise, low friction and long life.  This is due to our attention to the roundness, waviness and surface roughness of bearing raceway.

Our products fully meets the requirements of national and international standards according to the testing result of roughness, roundness, hardness, vibration noise, vibration velocity.


1, Inner package
   Corrosion and Dust Proof PE plastic film  / bag packing + Tube packing, or Wrapping  tape for larger bearings.

2, Corrugated Individual Box
   Our attractive sales-helpful “3-JOYS” package, or as the design of your package.
3, Outer package
  Corrugated carton + Wooden pallet 


  · Constant temperature (20°C) and humidity (RH 52%) warehouse
  · Hundreds of models on hand, short delivery time.





 We are happy to send you free samples of our bearings for field   testing. All transportation costs will be paid by us.

 Please note: Depending on the model and value of samples,   this policy may not apply!

 Please contact our sales staff for details.



To facilitate your payment, we offer a variety of options! 



1, About the lead time.
This depends on several factors, like Is the production schedule tight? Is there a corresponding model in stock, and is there enough of this model in stock? How many pcs of that model would be ordered?
Simply speaking, based on a 20′ GP container load:

If the model your Preferred is Sufficient stock Lead Time
Regular models YES Within 7 days
Regular models NO Within 30 days
Non-regular model NO About 50 days

For accurate estimate, please contact with our sale stuff. Thanks.

2, Minimum order quantity. 

Even just ONE piece of bearing is ok for us.

3, If you don’t know which model is the right choice…

We would like to give you some advise if you like, according to the real situation and demand of your local market. Our purpose is to help you to get proper and right models for your customers, so that you would make a better sales and income finally.

4, Factory Inspection

We surely would welcome you or your representatives to come to our plants or working offices to take a good look and chat with our hardworking CZPT employees. Ask our sales stuff and she/he will arrange that for you.


Subject Symbol Description
Material of Housing N/A Cast Iron/ Steel
Stainless Steel
Press Steel Plate
Bearing Type Code UC Cylindrical bore, with set screws
UK Tapered bore (for adapter)
NA/UEL Cylindrical bore (with eccentric locking collar)
UE Cylindrical bore with eccentric locking collar (light duty type)
UB  Flat head at 1 end, with set screws (light duty type)
SB Cylindrical bore, with set screws (light duty type)
SA Cylindrical bore, with eccentric locking collar
SU Cylindrical bore, with set screws
Housing Type Code P Pillow block type
PA Tapered-base pillow block type
LP Light duty pillow block type
IP Thick section pillow block type
HP Center height pillow block type
F Square-flanged type
FA Adjustable rhombic-flanged type
FB Three-bolt flange type
FL Rhombic-flanged type
FC Round-flanged type with spigot joint
FS Square-flanged type
C Cartridge type
T Take-up type
SP Pillow block type (stainless-type)
ST Take-up type (stainless-series)
Sealing Type RS Rubber seal on 1 side.
2RS Rubber seals on both sides.
RZ Rubber seal on 1 side. (non-contact)
2RZ Rubber seal on both sides(non-contact)
Z Metal shield on 1 side.
2Z Metal shields on both sides.
RSZ Rubber seal on 1 side, metal shields on other side
RZZ Rubber seal on 1 side, metal shields on other side
L2 Double-lip seal
L3 Triple-lip seal


This tech sheet may not contain all or every piece of information you want to know. Please contact our sales staff to obtain or compare the information.
                                                                                                                                                             In metric: mm

Bearing No. Shaft Dia Dimensions(mm) Weight 
d D Bi Be N M G Ds
mm mm
UC202 15 40 27.4 14 11.5 15.9 4.5 M5×0.8 0.14
UC203 17 40 27.4 14 11.5 15.9 4.5 M5×0.8 0.13
UC204 20 47 31 17 12.3 18.7 5 M6×1.0 0.18
UC205 25 52 34.1 17 14.3 19.8 5 M6×1.0 0.22
UC206 30 62 38.1 19 15.9 22.2 5 M6×1.0 0.34
UC207 35 72 42.9 20 17.5 25.4 7 M8×1.0 0.52
UC208 40 80 49.2 21 19 30.2 8 M8×1.0 0.68
UC209 45 85 49.2 22 19 30.2 8 M8×1.0 0.78
UC210 50 90 51.6 22 19 32.6 10 M10×1.25 0.85
UC211 55 100 55.6 25 22.2 33.4 10 M10×1.25 1.22
UC212 60 110 65.1 27 25.4 39.7 10 M10×1.25 1.65
UC213 65 120 65.1 29 25.4 39.7 10 M10×1.25 1.96
UC214 70 125 74.6 30 30.2 44.4 12 M12×1.5 2.06
UC215 75 130 77.8 30 33.3 44.5 12 M12×1.5 2.3
UC216 80 140 82.6 33 33.3 49.3 12 M12×1.5 2.79
UC217 85 150 85.7 35 34.1 51.6 12 M12×1.5 3.59
UC218 90 160 96 37 39.7 56.3 12 M12×1.5 4.56
UC305 25 62 38 20 15 23 6    M6×1.0 0.35
UC306 30 72 43 23 17 26 6 M8×1.0 0.56
UC307 35 80 48 25 19 29 8 M8×1.0 0.71
UC308 40 90 52 27 19 33 10 M10×1.25 1
UC309 45 100 57 29 22 35 10 M10×1.25 1.36
UC310 50 110 61 32 22 39 12 M12×1.50 1.65
UC311 55 120 66 34 25 41 12 M12×1.50 2.08
UC312 60 130 71 36 26 45 12 M12×1.50 2.6
UC313 65 140 75 38 30 45 12 M12×1.50 3.24
UC314 70 150 78 40 33 45 12 M12×1.50 3.91
UC315 75 160 82 42 32 50 14 M14×1.50 4.7
UC316 80 170 86 44 34 52 16 M16×1.50 5.06
UC317 85 180 96 46 40 56 16 M16×1.50 6.9
UC318 90 190 96 48 40 56 16 M16×1.50 8.03
UC319 95 200 103 50 41 62 16 M16×1.50 8.91
UC320 100 215 108 54 42 66 18 M18×1.50 11.2


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Aligning: Non-Aligning Bearing
Separated: Unseparated
Rows Number: Single
Raceway: Deep Groove Raceway
Material: Bearing Steel
Bearing Block Model: T
US$ 0/Piece
1 Piece(Min.Order)

Request Sample



Customized Request

sliding bearing

Advancements in Sliding Bearing Technology

Recent years have witnessed significant advancements in sliding bearing technology, leading to improved performance, durability, and efficiency in various applications. Some notable developments include:

Self-Lubricating Materials: The use of advanced self-lubricating materials, such as composite polymers and solid lubricants, has reduced the need for external lubrication, enhancing maintenance-free operation.

Nano-Coatings: Nano-coatings with improved wear resistance and reduced friction have been applied to sliding bearings, extending their lifespan and optimizing performance in demanding environments.

Improved Friction Management: Advanced surface texturing and micro-grooving techniques have been employed to manage friction and reduce wear, contributing to smoother operation and increased efficiency.

Bearing Monitoring Systems: Integration of sensors and monitoring systems allows real-time tracking of bearing health, enabling predictive maintenance and reducing unexpected downtime.

Customization: Modern manufacturing techniques, such as 3D printing and precision machining, allow for customized sliding bearings tailored to specific applications, improving overall system performance.

Environmentally Friendly Solutions: Development of environmentally friendly lubricants and materials ensures compliance with regulations and minimizes the impact of sliding bearing technology on the environment.

High-Load Capacities: Advances in material science and engineering have led to sliding bearings with increased load-carrying capacities, making them suitable for heavy-duty applications.

Enhanced Wear Resistance: Improved material compositions and surface treatments have enhanced wear resistance, reducing the need for frequent replacements and maintenance.

Reduced Noise and Vibration: Innovations in design and materials have resulted in sliding bearings that produce less noise and vibration, contributing to quieter and more comfortable machinery operation.

Integration with IoT: Integration of sliding bearings into the Internet of Things (IoT) networks allows for remote monitoring and optimization of bearing performance.

Digital Twin Technology: Digital twin simulations are being used to model sliding bearing behavior, aiding in design optimization and performance prediction.

Efficiency in High-Temperature Environments: Advancements in heat-resistant materials have enabled sliding bearings to operate efficiently in high-temperature industrial applications.

These advancements collectively contribute to the evolution of sliding bearing technology, making them more reliable, durable, and adaptable to a wide range of industrial and commercial applications.

sliding bearing

Impact of Materials on Sliding Bearing Performance and Durability

The choice of materials used in sliding bearings significantly influences their performance, longevity, and suitability for specific applications. Different materials offer varying characteristics that affect factors such as friction, wear resistance, load capacity, and corrosion resistance. Here are some common materials and their effects:

  • Bronze Bearings: Bronze bearings, often made from bronze alloys, offer good load-carrying capacity and resistance to wear. They are suitable for applications with moderate to heavy loads and low to moderate speeds. Bronze bearings also have good heat dissipation properties.
  • Steel Bearings: Steel bearings, particularly those made from stainless steel, provide excellent corrosion resistance and are suitable for applications exposed to harsh environments or moisture. Steel bearings are often used in marine and food processing industries.
  • Polymer Bearings: Polymer bearings, such as those made from materials like PTFE (polytetrafluoroethylene) or nylon, offer low friction and self-lubricating properties. They are suitable for applications where minimizing friction and wear is critical.
  • Composite Bearings: Composite bearings combine different materials to achieve specific performance characteristics. For instance, they might feature a polymer matrix with embedded reinforcing fibers for improved load capacity and wear resistance.
  • Graphite Bearings: Bearings with graphite as a lubricating element can operate without additional lubrication in certain conditions, reducing maintenance needs and offering self-lubricating properties.

The selection of materials should consider factors such as the application’s operating conditions, load requirements, speed, temperature, and the presence of corrosive substances. The right material choice ensures optimal performance, durability, and minimal maintenance for sliding bearings.

sliding bearing

Design Principles and Functions of Sliding Bearings

Sliding bearings, also known as plain bearings or journal bearings, operate on the principle of providing a low-friction interface between two moving surfaces. The design of sliding bearings is based on creating a film of lubrication between the bearing surface and the shaft or journal it supports. This film of lubrication separates the two surfaces and minimizes direct metal-to-metal contact, reducing friction and wear.

The main components and design principles of sliding bearings include:

  • Bearing Material: Sliding bearings are typically made from materials with good wear resistance and self-lubricating properties, such as bronze, brass, or various polymers. These materials help reduce friction and prevent excessive wear.
  • Lubrication: Lubrication is crucial for the proper functioning of sliding bearings. It can be provided by an external lubricant, solid lubricants embedded in the bearing material, or a combination of both. The lubrication forms a protective layer that reduces direct contact and minimizes friction.
  • Clearance: Sliding bearings are designed with a specific clearance between the bearing and the shaft to accommodate the lubricating film and allow for proper movement. This clearance prevents seizing and binding of the bearing.
  • Load Distribution: The design of sliding bearings ensures that the load is distributed over a larger surface area to prevent excessive stress on any single point. This feature is essential for handling heavy loads in industrial applications.
  • Alignment and Misalignment: Sliding bearings can tolerate small misalignments between the bearing and the shaft. This flexibility allows them to accommodate minor shifts caused by thermal expansion, vibration, or other factors.
  • Heat Dissipation: Sliding bearings can generate frictional heat during operation. Proper design includes features to facilitate heat dissipation and prevent overheating that could lead to premature wear.
  • Application-Specific Design: The design of sliding bearings can vary based on the specific application requirements, including load capacity, speed, operating temperature, and environmental conditions.

The functions of sliding bearings include providing support to rotating or sliding shafts, reducing friction, absorbing and distributing loads, allowing for misalignment, and offering smooth movement even in dirty or contaminated environments. Sliding bearings are commonly used in various industrial machinery and equipment, including engines, pumps, conveyors, and manufacturing equipment.

Overall, the design principles and functions of sliding bearings make them suitable for applications where low friction, durability, load-bearing capacity, and adaptability to varying conditions are essential.

China high quality Bearing Housing Sliding Block Take up UCT 204 205 Insert Ball Bearings with Set Crews Flange Units for Crane Vacuum Pump   with Hot sellingChina high quality Bearing Housing Sliding Block Take up UCT 204 205 Insert Ball Bearings with Set Crews Flange Units for Crane Vacuum Pump   with Hot selling
editor by CX 2024-05-17

China LDK China manufacturer SUE208 concentric locking stainless steel insert bearing without housing drive shaft bearing

Kind: Pillow Block
Applicable Industries: Constructing Content Stores, Producing Plant, Equipment Fix Outlets, Foods & Beverage Factory, Farms, Development works , Substantial speed Ceramic bearing 6902 total ceramic ball bearing 15x28x7 61902 ceramic bearing Vitality & Mining
Product Quantity: SUE208
Precision Rating: Substantial precision
Attributes: reduced sounds&vibration,standard duty
Insert substance: stainless steel 440
Product title: stainless metal ball bearing
certification: IATF16949
Model name: LDK or neutral or personal model
Design no.: SUE208
Bearing measurement: Metric/inch size are optional
Packaging Specifics: 1.Neutral packing(neutral plastic bag+neutral tan box+neutral carton+Plywood pallets) 2.Coloration box packing(plastic bag+ LDK colour box+ LDK carton)+Plywood pallets 3.As the clients’ need 4.Carton dimensions:39*29*18cm 5.Plywood: a.eighty*one hundred twenty*90cm(32 cartons,,4 flooring) b.eighty*one hundred twenty*70cm(24 carbons,3 flooring) c.eighty*one hundred twenty*110cm(40 carboons,5 flooring)
Port: HangZhou

LDK China producer SUE208 concentric locking stainless metal insert bearing without having housing

Bearing No.Shaft DiaProportions (mm)Load rating ( KN )Weight (kg)
SUE204 20473117twelve.seven18.three33.9.5forty.eightM4X0.7four.three12.826.sixty five.18
SUE204-twelve3/4 forty seven31seventeen12.7eighteen.three33.9.fiveforty.8M4X0.7four.three.eighteen
SUE205 twenty fivefifty two34.11714.three19.835.49.fiveforty nine.M4X0.seven414.038.05.21
SUE205-thirteen thirteen/16 fifty two34.1seventeen14.three19.eight35.four9.fiveforty nine.M4X0.7four.21
SUE205-14seven/8 fifty two34.117fourteen.three19.835.four9.5forty nine.M4X0.7four.21
SUE205-1515/16 5234.one17fourteen.three19.835.four9.5forty nine.M4X0.seven4.21
SUE205-sixteen1 5234.11714.319.eight35.fournine.549.M4X0.7four.21
SUE206 thirty6238.one19fifteen.nine22.239.eight9.5fifty five.fiveM4X0.75.319.forty seven11.43.33
SUE206-171-1/16 6238.one1915.nine22.two39.eightnine.fivefifty five.fiveM4X0.75.three.33
SUE206-eighteen1-1/8 6238.119fifteen.922.two39.eightnine.fivefifty five.fiveM4X0.7five.3.33
SUE206-191-3/sixteen sixty two38.11915.nine22.239.eightnine.555.5M4X0.seven5.three.33
SUE206-twenty1-1/4 6238.119fifteen.922.239.8nine.five55.fiveM4X0.75.3.33
SUE207 3572forty two.9twentyseventeen.5twenty five.443.nineeleven.64.M5x0.eight5.825.sixty nine15.55.51
SUE207-20one-1/four 7242.9twenty17.525.443.nineeleven.64.M5x0.85.8.51
SUE207-211-5/16 72forty two.nine2017.fivetwenty five.443.nineeleven.sixty four.M5x0.85.eight.fifty one
SUE207-221-3/eight seventy twoforty two.9twentyseventeen.5twenty five.4forty three.9eleven.sixty four.M5x0.eight5.eight.51
SUE207-23one-7/16 seventy two42.ninetwentyseventeen.5twenty five.fourforty three.911.sixty four.M5x0.eight5.8.fifty one
SUE208 4080forty nine.two2119.thirty.2fifty.2eleven.sixty eight.M5X0.8six.two29.fifty one18.fourteen.sixty eight
SUE208-241-1/two 8049.22119.thirty.2fifty.twoeleven.68.M5X0.eight6.2.sixty eight
SUE208-twenty fiveone-9/16 eightyforty nine.22119.30.250.211.sixty eight.M5X0.eightsix.two.sixty eight
SUE209 forty five8549.two2219.thirty.2fifty.two11.seventy four.M5X0.8six.531.8520.8.seventy eight
SUE209-26 one-5/8 eighty five49.22219.thirty.two50.211.seventy four.M5X0.eightsix.five.seventy eight
SUE209-271-eleven/16 eighty fiveforty nine.two2219.thirty.twofifty.211.seventy four.M5X0.8six.five.78
SUE209-281-3/four eighty fiveforty nine.22219.30.2fifty.twoeleven.seventy four.M5X0.86.five.78
SUE210 509051.six2419.32.652.6fourteen.fiveeighty one.M6x1seven34.ninety nine23.seven.eighty five
SUE210-30 one-7/8 ninetyfifty one.62419.32.six52.6fourteen.fiveeighty one.M6x1seven.85
SUE210-31one-fifteen/16 ninetyfifty one.62419.32.6fifty two.614.five81.M6x1seven.85
SUE210-322 9051.six2419.32.652.six14.fiveeighty one.M6x1seven.85
SUE211 55a hundred55.62522.two33.456.six14.fiveninety two.M6x17.443.3429.39one.16
SUE211-32 two a hundredfifty five.sixtwenty five22.two33.456.6fourteen.five92.M6x17.41.sixteen
SUE211-33two-1/16 a hundredfifty five.sixtwenty five22.two33.four56.614.five92.M6x17.fourone.sixteen
SUE211-342-1/8 one hundredfifty five.6twenty five22.233.fourfifty six.sixfourteen.592.M6x1seven.4one.16
SUE211-35two-3/sixteen 10055.sixtwenty five22.233.fourfifty six.sixfourteen.fiveninety two.M6x1seven.4one.sixteen
SUE212 sixtya hundred and tensixty five.12725.439.sevensixty six.six17.five103.M8x1.twenty five7.647.sixty eight33.forty three1.fifty nine
SUE212-36 two-1/4 110sixty five.one2725.four39.sevensixty six.sixseventeen.5103.M8x1.257.6one.59
SUE212-372-5/sixteen a hundred and ten65.127twenty five.439.766.six17.5103.M8x1.twenty fiveseven.sixone.fifty nine
SUE212-38two-3/eight one hundred ten65.one27twenty five.439.766.617.5103.M8x1.twenty five7.61.fifty nine
SUE212-39two-7/sixteen a hundred and tensixty five.127twenty five.439.7sixty six.six17.five103.M8x1.twenty five7.61.59

SUE Common responsibility, Inch Stainless Metal Double Split Shaft Clamp Collar for tight shaft shaft locking collars Stainlesss steel,Wider internal ring,Concentric locking

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Types of Ball Bearings

There are several types of ball bearings: Double-row angular contact, Four-point contact, Self-aligning, and Ceramic hybrid. Here’s a brief description of each. For more information, read our article about Double-row angular contact ball bearings. You’ll be better informed about how they’re made. Also, learn about how the cages that hold the balls in place are secured with rivets.

Double-row, angular-contact bearing

Double-row, angular-contact ball bearings are similar in their contact surfaces in one direction, and the two pairs of bearings are installed axially opposite to one another. This design allows them to support combined loads in axial and radial directions. These types of bearings are used for high-precision, high-speed applications. They can be used in everything from turbines to dentistry equipment. Double-row, angular-contact bearings are available at Grainger, as are single-row versions.
Double-row, angular-contact ball bearings are a popular option for applications where high precision and high speed are required. The design features of these bearings are ideal for applications with axial space restrictions. In contrast, they are smaller than two single-row angular-contact bearings and are available in steel, polyamide, or brass cages. Whether you need a cage for high speed or hard operating conditions is up to you. If you are unsure about the right cage for your application, contact Schaeffler.
Single-row angular-contact ball bearings are the most common type of bearings. Double-row bearings are also available with a shielded outer ring, which protects the balls inside the bearing from external contaminants. Because these double-row bearings are a good choice for applications requiring high performance, they are often the most affordable option. They offer similar performance as single-row bearings but are much more rigid.
Preloading is a key performance characteristic for double-row angular-contact ball bearings. Preloading can decrease the service life of double-row angular-contact ball bearings by up to 380 percent. Alternatively, you can preload double-row angular-contact ball bearings by placing spacers between their outer rings. Good double-row angular-contact bearing installation will increase working accuracy and bearing life.

Four-point contact ball bearing

The Four Point Contact Ball Bearing Market can be segmented into three types: 35 Degree, 45 Degree, and Other. The 35 Degree segment is expected to witness the fastest growth over the next few years, owing to its increased operational speed and competence in axial and radial axis load handling. Other types of four-point contact ball bearings include the Miniature and Deep Groove varieties. These are widely used in automobiles, aerospace, and other industries.
These bearings are designed for oil-free screw compressors, and they feature an outer-ring guided brass cage to reduce friction and increase running accuracy. In addition, they have lower maintenance costs compared to conventional bearings. However, they have a higher mean roughness value than their counterparts. High-speed operations require high-speed bearings that can withstand fast speed changes. This is because of the higher friction rate, which results from four-point contact.
The Four-Point Contact Ball Bearing is a highly versatile product, as it can handle radial, thrust, and moment loads. Because of this, it is often the first choice for slow to moderate-speed applications. This design also has a simplified assembly process, requiring only a single double-half-turn to install. It is the first choice of many automotive OEMs because it is extremely efficient. If you want a ball bearing with these benefits, you should contact a local bearing company.
The Four-Point Contact Ball Bearing Market will continue to grow despite a tough economy and volatile trade conditions. Demand for automotive and aerospace components is expected to grow alongside a variety of technological advancements. Meanwhile, demand for energy-efficient products will continue to increase with changes in trade policy, an imbalance in the supply-side ecosystem, and geopolitical risk. And while all these factors will continue to drive the market growth, a few challenges are worth considering.
The Four-Point Contact Bearing is designed with the same basic structure as its two-point counterpart. In a four-point contact ball bearing, one ball can have four distinct points of contact with two rings. Two of these contact points may be in diagonal position. The two remaining contact points change position and accommodate radial loads. Consequently, the Four-Point Contact Bearing is more flexible and robust than its two-point counterparts.

Self-aligning ball bearing

The self-aligning ball bearing is an incredibly useful tool in many industries. This type of bearing has a sealing lip that makes contact with a smooth chamfer on the inner ring. Because of the self-aligning nature of these bearings, they are not prone to misalignment. They can withstand temperatures ranging from -30°C to 120°C and should not be heated prior to installation.
A self-aligning ball bearing is an elastomer-based spherical-shaped bearing with two rows of rolling elements. These bearings can accommodate large radial loads, and their outer ring raceway is curved to provide a spherical effect. The inner ring, or cage, can be either cylindrical or conical. The inner diameter of a self-aligning ball bearing is normally cylindrical, but some are conical. They typically have three oil holes.
When choosing a self-aligning ball bearing, look for a model with a large enough bearing diameter to accommodate the shaft’s bending. Self-aligning bearings may also be interchangeable with standard ball bearing assemblies. You can find individual values in manufacturer catalogues. These bearings are useful in limited applications, although they are not necessarily ideal for everything. For example, in applications where combined loads are the main concern, self-aligning ball bearings should only be used if the application requires minimal misalignment.
A self-aligning ball bearing is a highly-efficient, energy-efficient solution for a variety of applications. It is a simple, low-maintenance solution that makes your life easier. Its unique outer raceway allows restraining springs to absorb the deflection that is common in other bearings. The result is a cooler, smoother running vehicle. It also helps prevent misalignment, which makes it ideal for use in many applications.
The SKF self-aligning ball bearing is an excellent choice for applications involving heavy deflection of the shaft. They are the lowest-friction bearing available. Their steel plate reinforced seals prevent them from separating from the shaft during operation. They are also resistant to oil, making them the perfect solution for high-speed applications. In addition to this, they are designed to work in a wide range of temperatures.

Ceramic hybrid ball bearing

A hybrid ball bearing made from a combination of steel and ceramics is a good option for high-speed applications requiring electrical isolation. This combination offers an extended lifespan and minimal electrical corrosion or seizure risk. In addition, the hybrid ball bearings have less friction than steel bearings and can operate at low speeds. To learn more about this hybrid type of bearing, continue reading. We’ll also discuss how it can help your application.
Full ceramic balls are generally harder than steel, but they do have lower density, meaning they’re not subject to the same high centrifugal forces as steel balls. These benefits make ceramic ball bearings much more durable, with long lifespans. Both full and hybrid ceramic ball bearings are available from CZPT. Read on to learn more about each type. Here’s a look at some of the benefits of each. You’ll be pleasantly surprised.
A hybrid ball bearing consists of steel inner and outer rings and a ceramic ball. It can withstand high speeds and loads, but it’s also designed to operate in extreme temperatures. This hybrid ball bearing also requires minimal lubrication and is suitable for a variety of applications. Because of its unique characteristics, hybrid bearings are lightweight and hard, and they spin faster than steel balls. But how do you choose the right one for your application?
A ceramic ball bearing is better than a steel one for many applications. Its greater speed capability and lower friction allow it to operate at higher speeds than steel balls. It is also less sensitive to fluctuations in lubrication conditions than steel balls. They also tend to be cheaper, so it makes sense to invest in one. It’s worth your while. They last longer, and they don’t require a run-in period.
A hybrid ball bearing is the best choice for electric spindles with high speed and heavy loads. A hybrid ceramic ball bearing has the advantage of low heat and high stiffness, and can operate at high speeds and loads. This thesis explores the dynamic characteristics of a hybrid ceramic ball bearing, including analysis calculations and experiment verification. The results provide reliable data and lay the foundation for professional spindle optimum design tests. It is a worthy addition to any machine shop.

China LDK China manufacturer SUE208 concentric locking stainless steel insert bearing without housing     drive shaft bearingChina LDK China manufacturer SUE208 concentric locking stainless steel insert bearing without housing     drive shaft bearing
editor by czh 2023-02-19

China factory Wholesale Insert Ball Bearing Sb210-31 for Agricultural CZPT Bearing with Great quality

Product Description

why pick us 

one.we are manufacturing facility , not buying and selling firm ,
   so can management all the process from generation to market , after-sale.

2.salt-tub and oil 2 kinds of warmth-remedy for your selection

3.ISO9001 Top quality Administration Program Certification

four, aggressive rates + fast direct time +large inventory + good top quality control
    + much better right after-sale service

5, specialist tenechical office provider to income section ,
    fully recognize your technical request .

6, Use high-quality raw supplies HT200 , which is developed bolstered solid housing and  the cost-free-coating approach of bottom, enhanced the compressive strength of pillow block and assembly smoothness.

A, some Insert BEARING Data for your better reference: we have massive stock for various insert bearing



Spherical Bearings

lnsert bearing is truly a variant of deep groove ball bearings, the characteristics of the floor of the outer ring outdoors diameter spherical, can perform a part in aligning fit into the corresponding concave spherical bearing seat.
Insert bearings in accordance with the methods of cooperation with the axis can be divided into 3 types:
one. Ball bearings with setcrews: UC200 Collection (mild sequence), UC300 collection (large series), and deformation product UB (SB) two hundred Collection
two. With a tapered bore : UK200 Collection, UK300 series.
3. With eccentric locking collar: HC200 sequence at, HC three hundred sequence, SA200 series
our package 
usually CZPT in solitary box +water-proof bag+5 layers carton+ pallets .of course we can CZPT as customer’s request too .
load port : ZheJiang or HangZhou or as client appointed .

Screening Place

Welcome your enquiry anytime:


Picking the Appropriate Ball Bearing for Your Software

When choosing a Ball Bearing, there are many items to think about. These aspects incorporate: the size, lubricant kind, presence of corrosive agents, stray electrical currents, and much more. It can be demanding to select the right kind, size, and type of ball bearing for your application. You need to also cautiously determine the masses to figure out the right dimensions. Here are some suggestions for picking the proper Ball Bearing for your application.


The single-row ball bearing is one particular of the most well-known types of bearings. The inner and outer ring are developed with raceway grooves that are shaped a bit bigger than the balls. This kind of bearing has a reduced torque and can handle large-speed apps with minimal energy decline. The radial proportions of single-row ball bearings also range, so it is achievable to discover one that matches your distinct software. In addition to the over-pointed out rewards, solitary-row ball bearings are also offered with various grease amounts and are widely applicable to purposes in which the place is constrained.
Solitary-row ball bearings are also known as angular-speak to ball bearings. Because of their one-row design, they are not separable and can accommodate a large-pace, hefty-responsibility software. Solitary-row angular-make contact with ball bearings can only manage axial load in a single course, and they must be set up in pairs for pure radial masses. One-row ball bearings are a well-liked type of rolling bearings and can be used for a vast selection of apps.


The self-aligning ball bearing was invented by Sven Wingquist, a plant engineer for a textile organization in Sweden. Although he was responsible for making manufacturing as efficient as possible, he shortly understood that the machinery he experienced in area was not operating as proficiently as it could. Although ball bearings are excellent for decreasing friction, they have been not versatile sufficient to compensate for misalignments in the equipment.
Self-aligning ball bearings have two rows of balls and a frequent sphered raceway. The inner ring is curved and combines the two rows of balls into a single cage. These bearings can tolerate shaft misalignment and compensate for static angular defects. They can be utilised in simple woodworking machinery, ventilators, and conveying equipment. They are usually the chosen choice for programs the place shaft alignment is an problem.


A Ceramic ball bearing is a sort of large-overall performance bearing that is obtainable in both entire-ceramic and hybrid types. The principal distinctions amongst ceramic and steel ball bearings are their development, lubrication, and mobility. Substantial-top quality ceramic ball bearings are sturdy, and they are excellent for corrosive and substantial-temperature apps. The content utilised to produce these bearings helps avert electrolytic corrosion. They are also perfect for decreasing the friction and lubrication requirements.
Ceramic balls are more challenging and significantly less brittle than steel balls, which provides them a increased degree of rigidity. Ceramics also have a larger hardness, with a hardness of Rc75-80 compared to Rc58-sixty four for metal balls. Their high compressive toughness is approximately 5 to 7 occasions better than steel. In addition, they have a quite reduced coefficient of friction, which permits them to spin at increased speeds and with much less friction. This increases their lifespan and longevity, and decreases the vitality required to turn cranks.


Unlike standard bearings, steel balls have a fairly uniform hardness. Carbon metal, for instance, is 2.1% carbon by fat. According to the American Iron and Metal Institute, copper content material should be no a lot more than .40% and manganese articles should not be a lot more than 1.65 g/cm3. Following carbonizing, steel balls bear a procedure named sizing, which improves their roundness geometry and hardness.
The primary variances between steel ball bearings and ceramic ball bearings can be traced to their various components. Ceramic balls are manufactured from zirconium dioxide or silicon nitride. Silicon nitride is tougher than steel and resists shocks. The result is increased pace and lengthier service life. Polyoxymethylene acetal (PMMA) bearing balls are identified for their stiffness, energy, and tolerance, but are not as frequent as steel ball bearings.


The most popular kinds of plastic ball bearings are manufactured of polypropylene or PTFE. These bearings are utilized in programs requiring increased chemical resistance. Polypropylene is a structural polymer that delivers excellent actual physical and chemical homes, such as exceptional resistance to natural solvents and degreasing agents. Its light-weight, low moisture absorption price, and good heat resistance make it an excellent decision for substantial-temperature purposes. Nonetheless, plastic bearings are not with no their downsides, specifically when functioning at quite large temperatures or underneath hefty loads.
When compared to steel bearings, plastic ball-bearings do not need lubrication. They also are very corrosion-resistant, generating them an outstanding option for clean-down programs. They are also put up-, autoclave-, and gamma sterilizable. Many conventional steel ball-bearings cannot take care of the large temperatures of foodstuff processing or swimming swimming pools. In addition to high temperature programs, plastic ball bearings are resistant to chemical substances, which includes chlorine.


Plastic sliding bearings are molded bearings produced of engineering plastic. With self-lubricating modification technologies, these bearings can be developed by injection molding of plastic beads. They are commonly utilized in various industries these kinds of as office gear, physical fitness and automotive products. In addition to plastic bearings, glass balls are employed in a assortment of other programs, including health care tools. Glass ball bearings have exceptional corrosion resistance, exceptional mechanical properties, and are electrically insulators.
Plastic ball bearings are created of all-plastic races and cages. These bearings are appropriate for apps that are uncovered to acids and alkalis. Because they are more affordable than glass balls, plastic ball bearings are well-known in chemical-uncovered environments. Stainless metal balls are also resistant to warmth and corrosion. But the main disadvantage of plastic ball bearings is that they are not as robust as glass balls. So, if excess weight and sound is your main issue, consider making use of plastic balls as an alternative.


The international miniature ball bearing industry is anticipated to get to US$ 2.39 Billion by 2027, at a CAGR of 7.2%. Development in the region is attributed to technological progression and federal government initiatives. Nations around the world these kinds of as India and China are attracting FDIs and emphasizing the establishment of a worldwide production hub. This is boosting the market place for miniature ball bearings. The miniscule ball bearings are made in tiny portions and are very little.
Some makers produce miniature ball bearings in distinct supplies and types. Chrome steel is the most popular materials for miniature ball bearings due to the fact of its large load potential, reduced sound houses, and reduce price. But the expense of stainless metal miniature bearings is low, because the volume of metal utilised is small. Stainless steel miniature bearings are the smallest in dimensions. For that reason, you can select stainless steel mini ball bearings for large-velocity programs.

Angular-get in touch with

Angular-speak to ball bearings have three factors: a cage, interior ring, and balls. Angular-get in touch with ball bearings can assistance large axial and radial hundreds. Numerous design and style and production characteristics make angular-make contact with ball bearings suited for a variety of programs. Some attributes of this bearing type contain a special lubricant, diverse cage components, and diverse coatings.
The dimension of an angular-contact ball bearing is identified by the design units: outer ring width, axial load, and radial load. Relying on the variety of application, an angular-contact ball bearing could be created in double-row, triple-row, or quadruple-row configurations. Angular speak to ball bearings can be labeled in accordance to their design and style models, which variety from metric to imperial. A larger ABEC variety implies tighter tolerances. To establish the tolerance equal of a particular bearing, seek the advice of a common Angular-get in touch with ball bearing table.
Angular-contact ball bearings feature higher and reduced-shoulder configurations. They have two-dimensional races that accommodate axial and radial loads. They are available in self-retaining units with sound inner and outer rings, and ball and cage assemblies. Cages created of cast and wrought brass are the most well-known, but lightweight phenolic cages are also obtainable. The latter is a much better choice since it will not take up oil and has decrease rolling friction.


When it comes to the design of a ball bearing, higher-high quality uncooked supplies are a crucial part. These components not only affect the all round quality of a ball bearing, but also affect the expense. That is why you need to spend shut focus to uncooked substance good quality. In addition to that, uncooked components ought to be examined a number of times just before the producing procedure to ensure top quality. Go through on for some data about the diverse kinds of resources used to make ball bearings.
Steel is the most widespread material for ball bearings. Most ball bearings incorporate stainless steel balls, which are remarkably corrosion-resistant. They are also resistant to saltwater and alkalis. Even so, stainless metal balls are heavier than plastic types, and they are also magnetic, which may possibly be a downside in some purposes. If you are seeking for a metal-cost-free alternative, glass balls are the way to go. They are durable, light-weight, and resistant to a wide assortment of chemical compounds.

China factory Wholesale Insert Ball Bearing Sb210-31 for Agricultural CZPT Bearing     with Great qualityChina factory Wholesale Insert Ball Bearing Sb210-31 for Agricultural CZPT Bearing     with Great quality