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. 619-0036
BrandRS PRO
R 32.26
Each
units
8mm 22mm Miniature 7mm Shielded - 1 1.379kN Steel - - - Plain 3.293kN
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. 618-9907
BrandRS PRO
R 23.47
Each
units
5mm 16mm Miniature 5mm Shielded - 1 675N Steel - - - Plain 1.729kN
RS stock no. 619-0452
BrandRS PRO
R 74.41
Each
units
25mm 37mm Deep Groove 7mm Sealed - 1 2.6kN Steel - - - Plain 4.36kN
RS stock no. 619-0042
BrandRS PRO
R 33.92
Each
units
7mm 22mm Miniature 7mm Shielded - 1 1.379kN Steel - - - Plain 3.287kN
RS stock no. 619-0014
BrandRS PRO
R 32.74
Each
units
6mm 19mm Miniature 6mm Shielded - 1 896N Steel - - - Plain 2.336kN
RS stock no. 618-9913
BrandRS PRO
R 35.54
Each
units
6mm 19mm Miniature 6mm Sealed - 1 896N Steel - - - Plain 2.336kN
RS stock no. 893-7427
BrandRS PRO
R 550.12
Each
units
30mm 72mm Deep Groove 19mm Sealed - 1 13.5kN Stainless Steel - - - Plain 24.03kN
RS stock no. 893-7367
BrandRS PRO
R 222.77
Each
units
25mm 52mm Deep Groove 15mm Sealed - 1 7.065kN Stainless Steel - - - Plain 12.6kN
RS stock no. 619-0109
BrandRS PRO
R 40.17
Each
units
12mm 21mm Deep Groove 5mm Sealed - 1 670N Steel - - - Plain 1.43kN
RS stock no. 619-0531
BrandRS PRO
R 135.65
Each
units
40mm 68mm Deep Groove 15mm Sealed - 1 11.6kN Steel - - - Plain 16.8kN
RS stock no. 893-7360
BrandRS PRO
R 170.60
Each
units
20mm 47mm Deep Groove 14mm Sealed - 1 5.985kN Stainless Steel - - - Plain 11.52kN
RS stock no. 619-0121
BrandRS PRO
R 40.42
Each
units
12mm 28mm Deep Groove 8mm Sealed - 1 2.36kN Steel - - - Plain 5.07kN
RS stock no. 618-9979
BrandRS PRO
R 38.40
Each
units
10mm 19mm Deep Groove 5mm Sealed - 1 585N Steel - - - Plain 1.38kN
RS stock no. 618-9856
BrandRS PRO
R 31.57
Each
units
3mm 10mm Miniature 4mm Sealed - 1 219N Steel - - - Plain 631N
RS stock no. 619-0626
BrandRS PRO
R 438.95
Each
units
50mm 110mm Deep Groove 27mm Sealed - 1 38kN Steel - - - Plain 61.8kN
RS stock no. 893-7446
BrandRS PRO
R 83.63
Each
units
15mm 24mm Deep Groove 5mm Sealed - 1 1.04kN Stainless Steel - - - Plain 1.68kN
RS stock no. 893-7464
BrandRS PRO
R 66.32
Each
units
12mm 24mm Deep Groove 6mm Sealed - 1 1.2kN Stainless Steel - - - Plain 2.32kN
RS stock no. 618-9991
BrandRS PRO
R 38.01
Each
units
10mm 26mm Deep Groove 8mm Sealed - 1 1.96kN Steel - - - Plain 4.62kN