Product Description

What is a deep groove ball bearing

Ball bearings are composed of 1 or more rows of balls, placed between 2 coaxial rings. High resistance, they are particularly suitable for high speeds.
That’s why we find them in many mechanical applications. Ball bearings can be with or without seals (water and dust). Ball bearings with integrated seals contain a lubricant that is effective for life. These do not require maintenance.
Our range is also composed of sealed ball bearings with, on both sides, sheet-reinforced acrylonitrile-butadiene rubber (NBR) contact seals. They are supplied ready for assembly and pre-greased.

Deep groove ball bearings are simple in construction as well as easy to operate and maintain. They can run at high speeds and can support both radial and axial loads, furthermore they are robust, versatile and quiet running.

How to choose a dental bearing from our  HangZhou CZPT BEARING CO.,LTD ?

  • Dental Drill Bearing

Product size and parameters

Bearing No. Bore Dia(d) Outer Dia(D) B Dia of Flange
SR144TLN 3.175 6.35 2.38
SR144TLZ 3.175 6.35 2.38
SR144TLW 3.175 6.35 2.78
SR144TLZW 3.175 6.35 2.78
SR144TLKZ 3.175 6.35 2.38
SR144TLKZW 3.175 6.35 2.78
SR144K1TLKW 3.175 6.35 2.78
SR144K2TLKW 3.175 6.35 2.78
SR144TLKZ1 3.175 6.35 2.38
SR144TLKZ1W 3.175 6.35 2.78
SR144K1TL 3.175 6.35 2.38
SR144K2TL 3.175 6.35 2.38
SR144K1TLW 3.175 6.35 2.78
SR144K1TLZ 3.175 6.35 2.38
SR144K2TLZ 3.175 6.35 2.38
SR144K1TLZW 3.175 6.35 2.78
SR144K2TLZW 3.175 6.35 2.78
SFR144K1TLZ 3.175 6.35 2.38 7.5
SFR144K2TLZ 3.175 6.35 2.38 7.5
SFR144TLZ 3.175 6.35 2.38 7.5
SFR144TLZW 3.175 6.35 2.78 7.5
SFR144K1TLZW 3.175 6.35 2.78 7.5
SFR144K2TLZW 3.175 6.35 2.78 7.5
SR144K1TLKZW 3.175 6.35 2.78

 

Metrice system:
d= 1mm to 12mm 

Model
 

Bore(d)

Outer Diameter(D)

Width(b)

Cr(N)

Cor(N)

RPM (Limited)

open

zz

Grease Oil
*1000rpm
681 1 3 1 96 26 130 150
691 4 1.6 141 37 100 120
681Xzz

1.5

4 1.2 2 112 33 100 120
691Xzz 5 2 2.6 169 50 85 100
601Xzz 6 2.5 3 330 99 75 90
682zz

 

2

5 1.5 2.3 169 50 85 100
MR52zz 5 2 2.5 169 50 85 100
692zz 6 2.3 3 330 99 75 90
MR62zz 6 2.5 2.5 330 99 75 90
MR72zz 7 2.8 3 386 129 63 75
602zz 7 2.8 3.5 386 129 60 71
682Xzz

 

2.5

6 1.8 2.6 209 74 71 80
692Xzz 7 2.5 3.5 386 129 63 75
MR82X 8 2.5 558 180 60 67
602Xzz 8 2.8 4 552 177 60 71
MR63zz

 

 

3

6 2 2.5 209 74 71 80
683zz 7 2 3 311 112 63 75
MR83zz 8 2.5 3 395 141 60 67
693zz 8 3 4 558 180 60 67
MR93zz 9 2.5 4 571 189 56 67
603zz 9 3 5 571 189 56 67
623zz 10 4 4 631 219 50 60
633zz 13 5 5 1301 488 40 48
MR74zz

 

 

4

7 2 2.5 255 108 60 67
MR84zz 8 2 3 395 141 56 67
684zz 9 2.5 4 641 227 53 63
MR104zz 10 3 4 711 272 48 56
694zz 11 4 4 957 350 48 56
604zz 12 4 4 957 350 48 56
624zz 13 5 5 1301 488 40 48
634zz 16 5 5 1340 523 36 43
MR85zz

 

 

5

8 2 2.5 218 90 53 63
MR95zz 9 2.5 3 431 169 50 60
MR105zz 10 3 4 431 169 50 60
MR115zz 11 4 716 282 45 53
685zz 11 3 5 716 282 45 53
695zz 13 4 4 1077 432 43 50
605zz 14 5 5 1329 507 40 50
625zz 16 5 5 1729 675 36 43
635zz 19 6 6 2336 896 32 40
MR106zz

 

 

6

10 2.5 3 496 218 45 53
MR126zz 12 3 4 716 295 43 50
686zz 13 3.5 5 1082 442 40 50
696zz 15 5 5 1340 523 40 45
606zz 17 6 6 2263 846 38 45
626zz 19 6 6 2336 896 32 40
636zz 22 7 7 3333 1423 30 36
MR117zz

 

 

7

11 2.5 3 455 202 43 50
MR137zz 13 3 4 541 276 40 48
687zz 14 3.5 5 1173 513 40 50
697zz 17 5 5 1605 719 36 43
607zz 19 6 6 2336 896 36 43
627zz 22 7 7 3287 1379 30 36
637zz 26 9 6 4563 1983 28 34
MR128zz

 

8

12 2.5 3.5 543 274 40 48
MR148zz 14 3.5 4 817 386 38 45
688zz 16 4 5 1252 592 36 43
698zz 19 6 6 2237 917 36 43
608z 22 7 7 3293 1379 34 40
628zz 24 8 8 3333 1423 28 34
638zz 28 9 9 4563 1983 28 34
679zz

 

9

14 3 4.5 919 468 36 42
689zz 17 4 5 1327 668 36 43
699zz 20 6 6 2467 1081 34 40
609zz 24 7 7 3356 1444 32 38
629zz 26 8 8 4575 1983 28 34
639zz 30 10 10 4659 2080 24 30
6700zz

 

10

15 4 4 855 435 15 17
6800zz 19 5 5 1716 840 37 43
6900zz 22 6 6 2695 1273 34 41
6000zz 26 8 8 4550 1970 30 36
6200zz 30 9 9 5100 2390 24 30
6300zz 35 11 11 8100 3450 22 26
6701zz

 

12

18 4 4 926 530 13 15
6801zz 21 5 5 1915 1041 33 39
6901zz 24 6 6 2886 1466 31 36
6001zz 28 8 8 5100 2370 28 32
6201zz 32 10 10 6800 3050 22 28
6301zz 37 12 12 9700 4200 990 425

Pls feel free to inquiry us:

@overseas dept.
 
cxzybearing

US $0.05-0.21
/ Piece
|
1,000 Pieces

(Min. Order)

###

Contact Angle: Normal
Aligning: Non-Aligning Bearing
Separated: Unseparated
Rows Number: Single
Load Direction: Radial Bearing
Material: Bearing Steel

###

Samples:
US$ 1/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

Bearing No. Bore Dia(d) Outer Dia(D) B Dia of Flange
SR144TLN 3.175 6.35 2.38
SR144TLZ 3.175 6.35 2.38
SR144TLW 3.175 6.35 2.78
SR144TLZW 3.175 6.35 2.78
SR144TLKZ 3.175 6.35 2.38
SR144TLKZW 3.175 6.35 2.78
SR144K1TLKW 3.175 6.35 2.78
SR144K2TLKW 3.175 6.35 2.78
SR144TLKZ1 3.175 6.35 2.38
SR144TLKZ1W 3.175 6.35 2.78
SR144K1TL 3.175 6.35 2.38
SR144K2TL 3.175 6.35 2.38
SR144K1TLW 3.175 6.35 2.78
SR144K1TLZ 3.175 6.35 2.38
SR144K2TLZ 3.175 6.35 2.38
SR144K1TLZW 3.175 6.35 2.78
SR144K2TLZW 3.175 6.35 2.78
SFR144K1TLZ 3.175 6.35 2.38 7.5
SFR144K2TLZ 3.175 6.35 2.38 7.5
SFR144TLZ 3.175 6.35 2.38 7.5
SFR144TLZW 3.175 6.35 2.78 7.5
SFR144K1TLZW 3.175 6.35 2.78 7.5
SFR144K2TLZW 3.175 6.35 2.78 7.5
SR144K1TLKZW 3.175 6.35 2.78

###

Model
 

Bore(d)

Outer Diameter(D)

Width(b)

Cr(N)

Cor(N)

RPM (Limited)

open

zz

Grease Oil
*1000rpm
681 1 3 1 96 26 130 150
691 4 1.6 141 37 100 120
681Xzz

1.5

4 1.2 2 112 33 100 120
691Xzz 5 2 2.6 169 50 85 100
601Xzz 6 2.5 3 330 99 75 90
682zz

 

2

5 1.5 2.3 169 50 85 100
MR52zz 5 2 2.5 169 50 85 100
692zz 6 2.3 3 330 99 75 90
MR62zz 6 2.5 2.5 330 99 75 90
MR72zz 7 2.8 3 386 129 63 75
602zz 7 2.8 3.5 386 129 60 71
682Xzz

 

2.5

6 1.8 2.6 209 74 71 80
692Xzz 7 2.5 3.5 386 129 63 75
MR82X 8 2.5 558 180 60 67
602Xzz 8 2.8 4 552 177 60 71
MR63zz

 

 

3

6 2 2.5 209 74 71 80
683zz 7 2 3 311 112 63 75
MR83zz 8 2.5 3 395 141 60 67
693zz 8 3 4 558 180 60 67
MR93zz 9 2.5 4 571 189 56 67
603zz 9 3 5 571 189 56 67
623zz 10 4 4 631 219 50 60
633zz 13 5 5 1301 488 40 48
MR74zz

 

 

4

7 2 2.5 255 108 60 67
MR84zz 8 2 3 395 141 56 67
684zz 9 2.5 4 641 227 53 63
MR104zz 10 3 4 711 272 48 56
694zz 11 4 4 957 350 48 56
604zz 12 4 4 957 350 48 56
624zz 13 5 5 1301 488 40 48
634zz 16 5 5 1340 523 36 43
MR85zz

 

 

5

8 2 2.5 218 90 53 63
MR95zz 9 2.5 3 431 169 50 60
MR105zz 10 3 4 431 169 50 60
MR115zz 11 4 716 282 45 53
685zz 11 3 5 716 282 45 53
695zz 13 4 4 1077 432 43 50
605zz 14 5 5 1329 507 40 50
625zz 16 5 5 1729 675 36 43
635zz 19 6 6 2336 896 32 40
MR106zz

 

 

6

10 2.5 3 496 218 45 53
MR126zz 12 3 4 716 295 43 50
686zz 13 3.5 5 1082 442 40 50
696zz 15 5 5 1340 523 40 45
606zz 17 6 6 2263 846 38 45
626zz 19 6 6 2336 896 32 40
636zz 22 7 7 3333 1423 30 36
MR117zz

 

 

7

11 2.5 3 455 202 43 50
MR137zz 13 3 4 541 276 40 48
687zz 14 3.5 5 1173 513 40 50
697zz 17 5 5 1605 719 36 43
607zz 19 6 6 2336 896 36 43
627zz 22 7 7 3287 1379 30 36
637zz 26 9 6 4563 1983 28 34
MR128zz

 

8

12 2.5 3.5 543 274 40 48
MR148zz 14 3.5 4 817 386 38 45
688zz 16 4 5 1252 592 36 43
698zz 19 6 6 2237 917 36 43
608z 22 7 7 3293 1379 34 40
628zz 24 8 8 3333 1423 28 34
638zz 28 9 9 4563 1983 28 34
679zz

 

9

14 3 4.5 919 468 36 42
689zz 17 4 5 1327 668 36 43
699zz 20 6 6 2467 1081 34 40
609zz 24 7 7 3356 1444 32 38
629zz 26 8 8 4575 1983 28 34
639zz 30 10 10 4659 2080 24 30
6700zz

 

10

15 4 4 855 435 15 17
6800zz 19 5 5 1716 840 37 43
6900zz 22 6 6 2695 1273 34 41
6000zz 26 8 8 4550 1970 30 36
6200zz 30 9 9 5100 2390 24 30
6300zz 35 11 11 8100 3450 22 26
6701zz

 

12

18 4 4 926 530 13 15
6801zz 21 5 5 1915 1041 33 39
6901zz 24 6 6 2886 1466 31 36
6001zz 28 8 8 5100 2370 28 32
6201zz 32 10 10 6800 3050 22 28
6301zz 37 12 12 9700 4200 990 425
US $0.05-0.21
/ Piece
|
1,000 Pieces

(Min. Order)

###

Contact Angle: Normal
Aligning: Non-Aligning Bearing
Separated: Unseparated
Rows Number: Single
Load Direction: Radial Bearing
Material: Bearing Steel

###

Samples:
US$ 1/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

Bearing No. Bore Dia(d) Outer Dia(D) B Dia of Flange
SR144TLN 3.175 6.35 2.38
SR144TLZ 3.175 6.35 2.38
SR144TLW 3.175 6.35 2.78
SR144TLZW 3.175 6.35 2.78
SR144TLKZ 3.175 6.35 2.38
SR144TLKZW 3.175 6.35 2.78
SR144K1TLKW 3.175 6.35 2.78
SR144K2TLKW 3.175 6.35 2.78
SR144TLKZ1 3.175 6.35 2.38
SR144TLKZ1W 3.175 6.35 2.78
SR144K1TL 3.175 6.35 2.38
SR144K2TL 3.175 6.35 2.38
SR144K1TLW 3.175 6.35 2.78
SR144K1TLZ 3.175 6.35 2.38
SR144K2TLZ 3.175 6.35 2.38
SR144K1TLZW 3.175 6.35 2.78
SR144K2TLZW 3.175 6.35 2.78
SFR144K1TLZ 3.175 6.35 2.38 7.5
SFR144K2TLZ 3.175 6.35 2.38 7.5
SFR144TLZ 3.175 6.35 2.38 7.5
SFR144TLZW 3.175 6.35 2.78 7.5
SFR144K1TLZW 3.175 6.35 2.78 7.5
SFR144K2TLZW 3.175 6.35 2.78 7.5
SR144K1TLKZW 3.175 6.35 2.78

###

Model
 

Bore(d)

Outer Diameter(D)

Width(b)

Cr(N)

Cor(N)

RPM (Limited)

open

zz

Grease Oil
*1000rpm
681 1 3 1 96 26 130 150
691 4 1.6 141 37 100 120
681Xzz

1.5

4 1.2 2 112 33 100 120
691Xzz 5 2 2.6 169 50 85 100
601Xzz 6 2.5 3 330 99 75 90
682zz

 

2

5 1.5 2.3 169 50 85 100
MR52zz 5 2 2.5 169 50 85 100
692zz 6 2.3 3 330 99 75 90
MR62zz 6 2.5 2.5 330 99 75 90
MR72zz 7 2.8 3 386 129 63 75
602zz 7 2.8 3.5 386 129 60 71
682Xzz

 

2.5

6 1.8 2.6 209 74 71 80
692Xzz 7 2.5 3.5 386 129 63 75
MR82X 8 2.5 558 180 60 67
602Xzz 8 2.8 4 552 177 60 71
MR63zz

 

 

3

6 2 2.5 209 74 71 80
683zz 7 2 3 311 112 63 75
MR83zz 8 2.5 3 395 141 60 67
693zz 8 3 4 558 180 60 67
MR93zz 9 2.5 4 571 189 56 67
603zz 9 3 5 571 189 56 67
623zz 10 4 4 631 219 50 60
633zz 13 5 5 1301 488 40 48
MR74zz

 

 

4

7 2 2.5 255 108 60 67
MR84zz 8 2 3 395 141 56 67
684zz 9 2.5 4 641 227 53 63
MR104zz 10 3 4 711 272 48 56
694zz 11 4 4 957 350 48 56
604zz 12 4 4 957 350 48 56
624zz 13 5 5 1301 488 40 48
634zz 16 5 5 1340 523 36 43
MR85zz

 

 

5

8 2 2.5 218 90 53 63
MR95zz 9 2.5 3 431 169 50 60
MR105zz 10 3 4 431 169 50 60
MR115zz 11 4 716 282 45 53
685zz 11 3 5 716 282 45 53
695zz 13 4 4 1077 432 43 50
605zz 14 5 5 1329 507 40 50
625zz 16 5 5 1729 675 36 43
635zz 19 6 6 2336 896 32 40
MR106zz

 

 

6

10 2.5 3 496 218 45 53
MR126zz 12 3 4 716 295 43 50
686zz 13 3.5 5 1082 442 40 50
696zz 15 5 5 1340 523 40 45
606zz 17 6 6 2263 846 38 45
626zz 19 6 6 2336 896 32 40
636zz 22 7 7 3333 1423 30 36
MR117zz

 

 

7

11 2.5 3 455 202 43 50
MR137zz 13 3 4 541 276 40 48
687zz 14 3.5 5 1173 513 40 50
697zz 17 5 5 1605 719 36 43
607zz 19 6 6 2336 896 36 43
627zz 22 7 7 3287 1379 30 36
637zz 26 9 6 4563 1983 28 34
MR128zz

 

8

12 2.5 3.5 543 274 40 48
MR148zz 14 3.5 4 817 386 38 45
688zz 16 4 5 1252 592 36 43
698zz 19 6 6 2237 917 36 43
608z 22 7 7 3293 1379 34 40
628zz 24 8 8 3333 1423 28 34
638zz 28 9 9 4563 1983 28 34
679zz

 

9

14 3 4.5 919 468 36 42
689zz 17 4 5 1327 668 36 43
699zz 20 6 6 2467 1081 34 40
609zz 24 7 7 3356 1444 32 38
629zz 26 8 8 4575 1983 28 34
639zz 30 10 10 4659 2080 24 30
6700zz

 

10

15 4 4 855 435 15 17
6800zz 19 5 5 1716 840 37 43
6900zz 22 6 6 2695 1273 34 41
6000zz 26 8 8 4550 1970 30 36
6200zz 30 9 9 5100 2390 24 30
6300zz 35 11 11 8100 3450 22 26
6701zz

 

12

18 4 4 926 530 13 15
6801zz 21 5 5 1915 1041 33 39
6901zz 24 6 6 2886 1466 31 36
6001zz 28 8 8 5100 2370 28 32
6201zz 32 10 10 6800 3050 22 28
6301zz 37 12 12 9700 4200 990 425

The Benefits of Using Self-Lubricating Bushings for Your Next Pivot

Like any other auto part, control arm bushings wear out over time. This results in an increase in irritating vibrations that can be dangerous in severe cases. The bushings in the control arms also wear out due to the stress that extreme driving conditions put on the control arms. Additionally, environmental factors and oversized tires tend to transmit more vibration through the bushing than conventionally sized tires. Whatever the cause, bushings can be the source of many problems.
bushing

wear and cracking

The main cause of dry valve side bushing cracking is a mismatch in thermal expansion of the core and flange. This situation can seriously compromise the safety of the power system. To improve the safety of dry valve side bushings, the crack development of epoxy impregnated paper under various conditions was investigated. A coupled thermomechanical simulation model was also used to study the cracking process.
The first step in diagnosing the cause of bushing wear and cracking is a visual inspection. The bushing of the lower control arm is fixed to the frame by a bracket. If there are any visible cracks, it’s time to replace the bushing. However, there is no need to replace the entire suspension. In some cases, worn bushings can cause a variety of problems, including body lean, excessive tire wear and cornering noise.

Maintenance free

If you’re considering maintenance-free bushings for your next pivot, you’ll be wondering what to look for in these components. The bushing protects the housing from corrosion and keeps the bushing under pressure. However, many users are not familiar with what these components can do for their applications. In this article, we’ll look at several examples of truly maintenance-free pivots and discuss their requirements.
One of the most popular types of maintenance-free bushings are flanged and parallel. Unlike worm gear bushings, these self-lubricating metal bearings are ideal for a variety of applications and conditions. They reduce failure and downtime costs while providing the long-term lubrication required by other types of bushings. Since these sleeves are made of lead-free material, they are RoHS compliant, which means they are environmentally friendly.Another common maintenance-free bushing is plastic. This material is easier to find off-the-shelf and relatively inexpensive to produce. However, it is not suitable for high load applications as it will crack under heavy loads and damage mating parts. Plastics can also deviate if the manufacturing process is imprecise. Plastic bushings can also crack when subjected to high loads.
bushing

self-lubricating

When using a self-lubricating bushing, there is no need to apply grease to the bushing. Oily liquids tend to attract dirt and grit, which can wear away the graphite prematurely. By eliminating the need for regular lubrication, you will reduce equipment maintenance costs. This article will explore the benefits of self-lubricating bushings. You will love your kindness.
Self-lubricating bushings have a strong base material to withstand radial bearing pressure while providing shaft support at the contact surfaces. The material also has good fatigue properties and low friction motion. Self-lubricating bushings can be used in environments with high temperatures and aggressive media. These products can also withstand enormous pressure. When using self-lubricating bushings, it is important to select the correct material.
The main advantage of using self-lubricating bushings is ease of maintenance. They don’t require oil to run and are cheaper to buy. Their main benefit is that they can significantly reduce your machine running costs. These bearings do not require oiling operations, reducing maintenance costs. These bearings also offer a simplified mechanical design due to their thin walls and high load capacity. In addition, they reduce noise levels while maintaining excellent wear resistance. Plus, their materials are ROHS compliant, which means they don’t require oil.
Hydropower installations are another area where self-lubricating bushings have proven their advantages. They reduce maintenance costs, extend equipment life, and improve environmental benefits. For example, the Newfoundland Power Company uses self-lubricating bushings in the gates of its hydroelectric power plants. These self-lubricating bushings eliminate grease from entering waterways and tailraces. As a result, power companies are able to reduce maintenance and costs.

compared to cartilage in the human body

What is the difference between tendon, bone and cartilage? Human cartilage is composed of collagen and elastic fibers. In contrast, fibrocartilage contains more collagen than hyaline cartilage. Both cartilage types are composed of proteoglycans, which have a protein backbone and glycosaminoglycan side chains. These components work together to provide structure and flexibility to the cartilage.
Bone is a combination of living and dead cells embedded in a matrix. The outer hard layer of bone is dense bone, and the inner layer is spongy, containing bone marrow, blood vessels, nerves, etc. Bone contains both organic and inorganic substances, and this process of hardening of the matrix produces bone. On the other hand, cartilage consists of chondrocytes and a matrix composed of collagen and elastin fibers. Compared to bone, cartilage is yellow and contains elastic fibers.
Although bone and cartilage are structurally identical, cartilage is more flexible. It is mainly found in the joints and respiratory system and requires flexibility. Its ingredients include collagen and proteoglycans, which provide compression and abrasion resistance. Furthermore, connective tissue is composed of cells, fibers and matrix.
The basic substance of cartilage is chondroitin sulfate, which is derived from animals. Although cartilage grows more slowly than bone, its microstructure is less organized. There is a fibrous sheath covering the cartilage, called the perichondrium. The molecular composition of the ECM plays an important role in the function of cartilage. The collagen matrix is ​​important for cartilage remodeling and consists of changes in the collagen matrix.
bushing

Compared to metal-on-bone contact

Both metal-on-bone contact are known to cause a significant increase in the pressures in a joint. To compare the two, we first calculated the joint contact pressures in each model and compared them. The results of this study support previous research on this subject. The following sections discuss the benefits of both types of contact. They also outline some key differences between the two.

China Sr144 3.175X6.35X2.38 Kavo W&H Sirona Midwest Star Bien Air Medical Equipment X-ray Miniature Micromotor Mobile Handpiece Spare Part Dental Bearing     manufacturerChina Sr144 3.175X6.35X2.38 Kavo W&H Sirona Midwest Star Bien Air Medical Equipment X-ray Miniature Micromotor Mobile Handpiece Spare Part Dental Bearing     manufacturer
editor by czh 2022-11-28