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. 409-0467
Mfr. Part No.6204ZZ
BrandNSK
R 141.66
Each
units
20mm 47mm Deep Groove 14mm Shielded - 1 6.6kN Steel - Steel - Plain 12.8kN
RS stock no. 618-9979
Mfr. Part No.6800-2RS
BrandRS PRO
R 38.40
Each
units
10mm 19mm Deep Groove 5mm Sealed - 1 585N Steel - - - Plain 1.38kN
RS stock no. 505-788
Mfr. Part No.7307BEP
BrandSKF
R 534.50
Each
units
35mm 80mm Angular Contact 21mm Open - 1 24.5kN Steel - Fibreglass Reinforced Nylon 66 - Plain 39kN
RS stock no. 492-2178
Mfr. Part No.623ZZ
BrandNSK
R 72.89
Each
units
3mm 10mm Deep Groove 4mm Shielded - 1 218N Steel - Steel - Plain 630N
RS stock no. 286-7805
Mfr. Part No.624-2Z
BrandSKF
R 63.04
Each
units
4mm 13mm Deep Groove 5mm Shielded - 1 290N Steel - Steel - Plain 940N
RS stock no. 123-4819
Mfr. Part No.608-2Z/C3GJN
BrandSKF
R 113.51
Each
units
8mm 22mm Deep Groove 7mm Shielded - 1 1.4kN Steel Ceramic Steel - Plain 3.4kN
RS stock no. 667-1061
Mfr. Part No.6208-2Z/C3
BrandSKF
R 287.09
Each
units
40mm 80mm Deep Groove 18mm Shielded - 1 19kN Steel - Steel - Plain 32.5kN
RS stock no. 286-8173
Mfr. Part No.6301-2Z
BrandSKF
R 92.53
Each
units
12mm 37mm Deep Groove 12mm Shielded - 1 4.15kN Steel - Steel - Plain 10.1kN
RS stock no. 619-0468
Mfr. Part No.6205-2RS
BrandRS PRO
R 73.44
Each
units
25mm 52mm Deep Groove 15mm Sealed - 1 7.8kN Steel - - - Plain 14kN
RS stock no. 893-7464
Mfr. Part No.SS61901-2RS
BrandRS PRO
R 66.32
Each
units
12mm 24mm Deep Groove 6mm Sealed - 1 1.2kN Stainless Steel - - - Plain 2.32kN
RS stock no. 667-1131
Mfr. Part No.6001-2RSH/C3
BrandSKF
R 81.17
Each
units
12mm 28mm Deep Groove 8mm Sealed - 1 2.36kN Steel - Steel - Plain 5.4kN
RS stock no. 109-955
Mfr. Part No.FT4/1B/D
BrandBNL
R 19.08
Each
units
6.5mm 14.3mm Thrust 1.5mm - - 1 25kg Plastic Carbon Steel Acetal Acetal Plain -
RS stock no. 409-0934
Mfr. Part No.51110
BrandNSK
R 319.15
Each
units
50mm 70mm Thrust 14mm - - 1 75.5kN Steel - Steel - Plain 29kN
RS stock no. 612-6057
Mfr. Part No.R-2210X2DDRA1P25LY121
BrandNMB
R 55.08
Each (In a Pack of 2)
units
10mm 22mm Radial 6mm Sealed - 1 1.273kN Steel Chromium Steel Chromium Steel Chromium Steel Plain 2.697kN
RS stock no. 409-0877
Mfr. Part No.51104
BrandNSK
R 165.68
Each
units
20mm 35mm Thrust 10mm - - 1 26.6kN Steel - Steel - Plain 15.1kN
RS stock no. 619-0626
Mfr. Part No.6310-2RS
BrandRS PRO
R 438.95
Each
units
50mm 110mm Deep Groove 27mm Sealed - 1 38kN Steel - - - Plain 61.8kN
RS stock no. 667-1049
Mfr. Part No.6202-2Z/C3
BrandSKF
R 76.68
Each
units
15mm 35mm Deep Groove 11mm Shielded - 1 3.75kN Steel - Steel - Plain 8.06kN
RS stock no. 409-0372
Mfr. Part No.6201ZZ
BrandNSK
R 74.91
Each
units
12mm 32mm Deep Groove 10mm Shielded - 1 3.05kN Steel - Steel - Plain 6.8kN
RS stock no. 285-1305
Mfr. Part No.1206 ETN9
BrandSKF
R 401.70
Each
units
30mm 62mm Self Aligning 16mm Open - 2 4.65kN Steel - Fibreglass Reinforced PA - Plain 15.6kN
RS stock no. 492-2207
Mfr. Part No.6306ZZ
BrandNSK
R 214.58
Each
units
30mm 72mm Deep Groove 19mm Shielded - 1 15kN Steel - Steel - Plain 26.7kN