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. 618-9957
BrandRS PRO
R 31.92
Each
units
8mm 22mm Miniature 7mm Sealed - 1 1.379kN Steel - - - Plain 3.293kN
RS stock no. 540-312
Mfr. Part No.DDLF1910ZZRA5P24LY121
BrandNMB
R 164.35
Each (In a Pack of 2)
units
10mm 19mm Radial 7mm Shielded 22mm 1 - Steel Martensitic Stainless Steel - Martensitic Stainless Steel Flanged 2.123kN
RS stock no. 286-7811
Mfr. Part No.625
BrandSKF
R 42.76
Each
units
5mm 16mm Deep Groove 5mm Open - 1 380N Steel - Steel - Plain 1.14kN
RS stock no. 408-9883
Mfr. Part No.608ZZ
BrandNSK
R 82.33
Each
units
8mm 22mm Deep Groove 7mm Shielded - 1 1.37kN Steel - Steel - Plain 3.3kN
RS stock no. 286-7669
Mfr. Part No.6005
BrandSKF
R 94.80
Each
units
25mm 47mm Deep Groove 12mm Open - 1 6.55kN Steel - Steel - Plain 11.9kN
RS stock no. 619-0036
BrandRS PRO
R 32.26
Each
units
8mm 22mm Miniature 7mm Shielded - 1 1.379kN Steel - - - Plain 3.293kN
RS stock no. 285-1715
Mfr. Part No.3206-A-2RS1TN9/MT33
BrandSKF
R 767.99
Each
units
30mm 62mm Angular Contact 23.8mm Sealed - 2 20.4kN Steel - Fibreglass Reinforced Nylon 66 - Plain 30kN
RS stock no. 286-7928
Mfr. Part No.6201
BrandSKF
R 89.60
Each
units
12mm 32mm Deep Groove 10mm Open - 1 3.1kN Steel - Steel - Plain 7.28kN
RS stock no. 618-9907
BrandRS PRO
R 23.47
Each
units
5mm 16mm Miniature 5mm Shielded - 1 675N Steel - - - Plain 1.729kN
RS stock no. 408-9782
Mfr. Part No.626ZZ
BrandNSK
R 62.66
Each
units
6mm 19mm Deep Groove 6mm Shielded - 1 885N Steel - Steel - Plain 2.34kN
RS stock no. 747-787
Mfr. Part No.DDR-1560ZZMTP24LY121
BrandNMB
R 82.495
Each (In a Pack of 2)
units
6mm 15mm Radial 5mm Shielded - 1 671N Steel Martensitic Stainless Steel - Martensitic Stainless Steel Plain 1.735kN
RS stock no. 619-0086
BrandRS PRO
R 37.48
Each
units
10mm 26mm Deep Groove 8mm Shielded - 1 1.96kN Steel - - - Plain 4.62kN
RS stock no. 442-0105
Mfr. Part No.6205-2RSH
BrandSKF
R 130.67
Each
units
25mm 52mm Deep Groove 15mm Sealed - 1 7.8kN Steel - Steel - Plain 14.8kN
RS stock no. 893-0237
Mfr. Part No.W6205-2RS1
BrandSKF
R 568.10
Each
units
25mm 52mm Deep Groove 15mm Sealed - 1 11.2kN Stainless Steel Stainless Steel Stainless Steel Stainless Steel Plain 17.8kN
RS stock no. 408-9754
Mfr. Part No.625ZZ
BrandNSK
R 46.30
Each
units
5mm 16mm Deep Groove 5mm Shielded - 1 670N Steel - Steel - Plain 1.73kN
RS stock no. 286-7631
Mfr. Part No.6004
BrandSKF
R 83.37
Each
units
20mm 42mm Deep Groove 12mm Open - 1 5kN Steel - Steel - Plain 9.95kN
RS stock no. 667-1052
Mfr. Part No.6204-2Z/C3
BrandSKF
R 103.70
Each
units
20mm 47mm Deep Groove 14mm Shielded - 1 6.55kN Steel - Steel - Plain 13.5kN
RS stock no. 409-0439
Mfr. Part No.6203ZZ
BrandNSK
R 88.42
Each
units
17mm 40mm Deep Groove 12mm Shielded - 1 4.8kN Steel - Steel - Plain 9.55kN
RS stock no. 441-9953
Mfr. Part No.608-2RSH
BrandSKF
R 70.87
Each
units
8mm 22mm Deep Groove 7mm Sealed - 1 1.37kN Steel - Steel - Plain 3.45kN
RS stock no. 286-7899
Mfr. Part No.629-2Z
BrandSKF
R 67.65
Each
units
9mm 26mm Deep Groove 8mm Shielded - 1 1.96kN - - Steel - Plain 4.75kN