Ball Bearings

A ball bearing is a rolling bearing used within the power transmission industry which features metal balls between a rotating or oscillating shaft and outer ring. With applications in everything from bicycle wheels to aerospace engineering, ball bearings are designed to reduce rotational friction while supporting radial loads. Incorporating a rolling element that guarantees a low coefficient of friction, ball bearings ensure smooth and uninterrupted rotation of, for example, an axle or motor shaft.


The only way for a ball bearing to operate efficiently or at high speeds is with the right lubrication which can work at high temperatures. The correct oil or grease lubricant has to be used with each bearing depending on its nominal lifespan and load.


Types of Ball Bearings


Ball bearings are available in open and sealed versions, depending on the environmental requirements. They are also available in a range of diameters, supplied in metric sizes. Types include:



  • Deep-groove ball bearings for when higher load capacity is required

  • Angular Contact ball bearings

  • Single-row ball bearings are the most common

  • Linear ball bearings

  • Miniature ball bearings

  • Radial deep groove ball bearing

  • Self-aligning ball bearings used with long shafts

  • Thrust ball bearings

  • Ceramic bearings resistant to corrosion and very little lubrication

  • Shielded bearings

  • Double row bearings have two rows

  • Caged bearings secure the balls


Ball bearings are used in objects with moving parts and have many applications. These include quite specific uses such as in computer fans, watches, gearboxes and children's toys.


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Description Price Inside Diameter Outside Diameter Ball Bearing Type Race Width End Type Flange Outside Diameter Number of Rows Static Load Rating Material Ball Material Cage Material Race Material Race Type Dynamic Load Rating
RS Stock No. 505-772
Mfr. Part No.7309BEP
BrandSKF
MYR406.36
Each
units
45mm 100mm Angular Contact 25mm Open - 1 37.5kN Steel - Fibreglass Reinforced Nylon 66 - Plain 55.9kN
RS Stock No. 285-1759
Mfr. Part No.3208 ATN9
BrandSKF
MYR390.62
Each
units
40mm 80mm Angular Contact 30.2mm Open - 2 34kN Steel - Fibreglass Reinforced Nylon 66 - Plain 47.5kN
RS Stock No. 285-1541
Mfr. Part No.7204 BEP
BrandSKF
MYR154.27
Each
units
20mm 47mm Angular Contact 14mm Open - 1 8.3kN Steel - Fibreglass Reinforced Nylon 66 - Plain 14kN
RS Stock No. 505-766
Mfr. Part No.7311BEP
BrandSKF
MYR632.83
Each
units
55mm 120mm Angular Contact 29mm Open - 1 55kN Steel - Fibreglass Reinforced Nylon 66 - Plain 79.3kN
RS Stock No. 285-1608
Mfr. Part No.7210 BEP
BrandSKF
MYR257.12
Each
units
50mm 90mm Angular Contact 20mm Open - 1 28.5kN Steel - Fibreglass Reinforced Nylon 66 - Plain 37.7kN
RS Stock No. 285-1686
Mfr. Part No.3205A
BrandSKF
MYR226.03
Each
units
25mm 52mm Angular Contact 20.6mm Open - 2 14.3kN Steel - Fibreglass Reinforced Nylon 66 - Plain 21.6kN
RS Stock No. 505-609
Mfr. Part No.3306ATN9
BrandSKF
MYR404.47
Each
units
30mm 72mm Angular Contact 30.2mm Open - 2 27.5kN Steel - Fibreglass Reinforced Nylon 66 - Plain 41.5kN
RS Stock No. 285-1771
Mfr. Part No.3209 ATN9
BrandSKF
MYR461.94
Each
units
45mm 85mm Angular Contact 30.2mm Open - 2 39kN Steel - Fibreglass Reinforced Nylon 66 - Plain 51kN
RS Stock No. 285-1563
Mfr. Part No.7206 BEP
BrandSKF
MYR199.91
Each
units
30mm 62mm Angular Contact 16mm Open - 1 14.3kN Steel - Fibreglass Reinforced Nylon 66 - Plain 22.5kN
RS Stock No. 285-1585
Mfr. Part No.7208 BEP
BrandSKF
MYR198.65
Each
units
40mm 80mm Angular Contact 18mm Open - 1 24kN Steel - Fibreglass Reinforced Nylon 66 - Plain 34.5kN
RS Stock No. 285-1709
Mfr. Part No.3206 ATN9
BrandSKF
MYR269.65
Each
units
30mm 62mm Angular Contact 23.8mm Open - 2 20.4kN Steel - Fibreglass Reinforced Nylon 66 - Plain 30kN
RS Stock No. 339-8350
Mfr. Part No.7200 BE
BrandSKF
MYR151.19
Each
units
10mm 30mm Angular Contact 9mm Open - 1 3.35kN Steel - Fibreglass Reinforced Nylon 66 - Plain 7.02kN
RS Stock No. 285-1579
Mfr. Part No.7207 BEP
BrandSKF
MYR238.24
Each
units
35mm 72mm Angular Contact 17mm Open - 1 19kN Steel - Fibreglass Reinforced Nylon 66 - Plain 29.1kN
RS Stock No. 505-776
Mfr. Part No.7310 BEP
BrandSKF
MYR445.45
Each
units
50mm 110mm Angular Contact 27mm Open - 1 47.5kN Steel - Fibreglass Reinforced Nylon 66 - Plain 68.9kN
RS Stock No. 505-586
Mfr. Part No.3201 A-2RS1TN9/MT33
BrandSKF
MYR232.38
Each
units
12mm 32mm Angular Contact 15.9mm Sealed - 2 5.6kN Steel - Fibreglass Reinforced Nylon 66 - Plain 10.1kN
RS Stock No. 797-5184
Mfr. Part No.E2.3206A-2ZTN9/C3
BrandSKF
MYR252.90
Each
units
30mm 62mm Angular Contact 23.8mm Shielded - 2 20.4kN Steel - Fibreglass Reinforced Nylon 66 - Plain 30kN
RS Stock No. 195-9602
Mfr. Part No.7408 BCBM
BrandSKF
MYR1,267.48
Each
units
40mm 110mm Angular Contact 27mm Open - 1 45kN Steel Steel - - Plain 70.2kN
RS Stock No. 195-9589
Mfr. Part No.7312 BECBJ
BrandSKF
MYR923.31
Each
units
60mm 130mm Angular Contact 31mm Open - 1 76.5kN Steel Steel - - Plain 104kN
RS Stock No. 195-9549
Mfr. Part No.3309 A
BrandSKF
MYR751.91
Each
units
45mm 100mm Angular Contact 39.7mm Open - 2 53kN Steel Steel - - Plain 75kN
RS Stock No. 195-9592
Mfr. Part No.3205 A-2RS1
BrandSKF
MYR263.71
Each
units
25mm 52mm Angular Contact 20.6mm Sealed - 2 15.3kN Steel Steel - - Plain 22kN