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. 408-9883
Mfr. Part No.608ZZ1MC3E
BrandNSK
R 77.85
Each
units
8mm 22mm Deep Groove 7mm Shielded - 1 1.37kN Steel - Steel - Plain 3.3kN
RS stock no. 408-9782
Mfr. Part No.626ZZ
BrandNSK
R 76.73
Each
units
6mm 19mm Deep Groove 6mm Shielded - 1 885N Steel - Steel - Plain 2.34kN
RS stock no. 408-9754
Mfr. Part No.625ZZ
BrandNSK
R 56.58
Each
units
5mm 16mm Deep Groove 5mm Shielded - 1 670N Steel - Steel - Plain 1.73kN
RS stock no. 409-0439
Mfr. Part No.6203ZZ
BrandNSK
R 114.25
Each
units
17mm 40mm Deep Groove 12mm Shielded - 1 4.8kN Steel - Steel - Plain 9.55kN
RS stock no. 408-9899
Mfr. Part No.608DD
BrandNSK
R 90.73
Each
units
8mm 22mm Deep Groove 7mm Sealed - 1 1.37kN Steel - Steel - Plain 3.3kN
RS stock no. 492-2112
Mfr. Part No.6802ZZ
BrandNSK
R 196.82
Each
units
15mm 24mm Deep Groove 5mm Shielded - 1 1.26kN Steel - Steel - Plain 2.07kN
RS stock no. 409-0237
Mfr. Part No.6007
BrandNSK
R 187.86
Each
units
35mm 62mm Deep Groove 14mm Open - 1 10.3kN Steel - Steel - Plain 16kN
RS stock no. 409-0546
Mfr. Part No.6206ZZ
BrandNSK
R 212.20
Each
units
30mm 62mm Deep Groove 16mm Shielded - 1 11.3kN Steel - Steel - Plain 19.5kN
RS stock no. 409-0883
Mfr. Part No.51105
BrandNSK
R 228.99
Each
units
25mm 42mm Thrust 11mm - - 1 37kN Steel - Steel - Plain 19.7kN
RS stock no. 409-0467
Mfr. Part No.6204ZZ
BrandNSK
R 136.68
Each
units
20mm 47mm Deep Groove 14mm Shielded - 1 6.6kN Steel - Steel - Plain 12.8kN
RS stock no. 409-0057
Mfr. Part No.6001ZZ
BrandNSK
R 97.72
Each
units
12mm 28mm Deep Groove 8mm Shielded - 1 2.37kN Steel - Steel - Plain 5.1kN
RS stock no. 492-2178
Mfr. Part No.623ZZ
BrandNSK
R 88.78
Each
units
3mm 10mm Deep Groove 4mm Shielded - 1 218N Steel - Steel - Plain 630N
RS stock no. 409-0877
Mfr. Part No.51104
BrandNSK
R 204.82
Each
units
20mm 35mm Thrust 10mm - - 1 26.6kN Steel - Steel - Plain 15.1kN
RS stock no. 492-2207
Mfr. Part No.6306ZZ
BrandNSK
R 296.39
Each
units
30mm 72mm Deep Groove 19mm Shielded - 1 15kN Steel - Steel - Plain 26.7kN
RS stock no. 409-0372
Mfr. Part No.6201ZZ
BrandNSK
R 94.86
Each
units
12mm 32mm Deep Groove 10mm Shielded - 1 3.05kN Steel - Steel - Plain 6.8kN
RS stock no. 409-0186
Mfr. Part No.6005DDU
BrandNSK
R 154.62
Each
units
25mm 47mm Deep Groove 12mm Sealed - 1 5.85kN Steel - Steel - Plain 10.1kN
RS stock no. 409-0934
Mfr. Part No.51110
BrandNSK
R 403.28
Each
units
50mm 70mm Thrust 14mm - - 1 75.5kN Steel - Steel - Plain 29kN
RS stock no. 409-0833
Mfr. Part No.51100
BrandNSK
R 209.16
Each
units
10mm 24mm Thrust 9mm - - 1 14kN Steel - Steel - Plain 10.1kN
RS stock no. 764-3626
Mfr. Part No.6000ZZC3
BrandNSK
R 84.59
Each
units
10mm 26mm Deep Groove 8mm Shielded - 1 1.97kN Steel - Pressed Steel - Plain 4.55kN
RS stock no. 409-0142
Mfr. Part No.6004ZZ
BrandNSK
R 122.60
Each
units
20mm 42mm Deep Groove 12mm Shielded - 1 5kN Steel - Steel - Plain 9.4kN