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. 195-9549
Mfr. Part No.3309 A
BrandSKF
R 2,378.52
Each
units
45mm 100mm Angular Contact 39.7mm Open - 2 53kN Steel Steel - - Plain 75kN
RS stock no. 191-3840
Mfr. Part No.6205-C-C3
BrandINA
R 125.28
Each
units
25mm 52mm Deep Groove 15mm Open - 1 7800N - - Sheet Steel - Plain 15000N
RS stock no. 126-2563
Mfr. Part No.6306-2ZNR
BrandSKF
R 619.66
Each
units
30mm 72mm Deep Groove 19mm Shielded - 1 16kN Steel Steel Steel Steel Plain 29.6kN
RS stock no. 195-9556
Mfr. Part No.3311 A/C3
BrandSKF
R 3,412.92
Each
units
55mm 120mm Angular Contact 49.2mm Open - 2 81.5kN Steel Steel - - Plain 112kN
RS stock no. 409-0675
Mfr. Part No.6303
BrandNSK
R 129.43
Each
units
17mm 47mm Deep Groove 14mm Open - 1 6.65kN Steel - Steel - Plain 13.6kN
RS stock no. 893-7272
Mfr. Part No.SS6005-2RS
BrandRS PRO
R 197.14
Each
units
25mm 47mm Deep Groove 12mm Sealed - 1 5.265kN Stainless Steel - - - Plain 9.09kN
RS stock no. 492-1866
Mfr. Part No.6801DD
BrandNSK
R 188.55
Each
units
12mm 21mm Deep Groove 5mm Sealed - 1 1.04kN Steel - Steel - Plain 1.92kN
RS stock no. 137-1608
Mfr. Part No.6006-2RSR
BrandFAG
R 193.70
Each
units
30mm 55mm Deep Groove 13mm Sealed - 1 8000N Steel - Steel - Plain 13500N
RS stock no. 137-1491
Mfr. Part No.2203-2RS-TVH
BrandFAG
R 685.07
Each
units
17mm 40mm Self Aligning 16mm Sealed - 2 2000N Steel - - - Plain 8100N
RS stock no. 190-8291
Mfr. Part No.11204-TVH
BrandFAG
R 830.18
Each
units
20mm 47mm Self Aligning 40mm Open - 2 2600N - - Brass - Plain 10100N
RS stock no. 285-1541
Mfr. Part No.7204 BEP
BrandSKF
R 422.71
Each
units
20mm 47mm Angular Contact 14mm Open - 1 8.3kN Steel - Fibreglass Reinforced Nylon 66 - Plain 14kN
RS stock no. 137-1590
Mfr. Part No.6002-C-2HRS
BrandFAG
R 109.78
Each
units
15mm 32mm Deep Groove 9mm Sealed - 1 2850N Steel - Steel - Plain 6000N
RS stock no. 764-3837
Mfr. Part No.6310ZZC3
BrandNSK
R 979.97
Each
units
50mm 110mm Deep Groove 27mm Shielded - 1 38.5kN Steel - Pressed Steel - Plain 62kN
RS stock no. 126-2579
Mfr. Part No.6308NR
BrandSKF
R 831.62
Each
units
40mm 90mm Deep Groove 23mm Open - 1 24kN Steel Steel Steel Steel Plain 42.3kN
RS stock no. 174-0964
Mfr. Part No.2201-2RS-TVH
BrandFAG
R 598.68
Each
units
12mm 32mm Self Aligning 14mm Sealed - 2 1250N - - Polyamide - Plain 5700N
RS stock no. 137-1457
Mfr. Part No.6310-C-2HRS
BrandFAG
R 1,254.82
Each
units
50mm 110mm Deep Groove 27mm Sealed - 1 38500N Steel - Steel - Plain 68000N
RS stock no. 126-2542
Mfr. Part No.6304-2Z/C4
BrandSKF
R 195.95
Each
units
20mm 52mm Deep Groove 15mm Shielded - 1 7.8kN Steel Steel Steel Steel Plain 16.8kN
RS stock no. 195-9558
Mfr. Part No.3312 A/C3
BrandSKF
R 4,202.78
Each
units
60mm 130mm Angular Contact 54mm Open - 2 95kN Steel Steel - - Plain 127kN
RS stock no. 126-2572
Mfr. Part No.6308-2RS1/C4
BrandSKF
R 581.15
Each
units
40mm 90mm Deep Groove 23mm Sealed - 1 24kN Steel Steel Steel Steel Plain 42.3kN
RS stock no. 137-1538
Mfr. Part No.RCSMB15/65FA106
BrandINA
R 801.58
Each
units
15mm 65.1mm Radial 25.4mm Sealed - 1 4750N Steel - - - Plain 10100N