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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Viewing 1 - 20 of 1907 products
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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
$3.81
Each
units
8mm 22mm Miniature 7mm Sealed - 1 1.379kN Steel - - - Plain 3.293kN
RS Stock No. 893-7323
BrandRS PRO
$5.54
Each
units
8mm 22mm Deep Groove 7mm Sealed - 1 882N Stainless Steel - - - Plain 2.111kN
RS Stock No. 619-0042
BrandRS PRO
$4.08
Each
units
7mm 22mm Miniature 7mm Shielded - 1 1.379kN Steel - - - Plain 3.287kN
RS Stock No. 618-9991
BrandRS PRO
$4.89
Each
units
10mm 26mm Deep Groove 8mm Sealed - 1 1.96kN Steel - - - Plain 4.62kN
RS Stock No. 619-0121
BrandRS PRO
$4.66
Each
units
12mm 28mm Deep Groove 8mm Sealed - 1 2.36kN Steel - - - Plain 5.07kN
RS Stock No. 619-0317
BrandRS PRO
$6.26
Each
units
17mm 40mm Deep Groove 12mm Sealed - 1 4.75kN Steel - - - Plain 9.56kN
RS Stock No. 618-9890
BrandRS PRO
$3.27
Each
units
4mm 13mm Miniature 5mm Shielded - 1 488N Steel - - - Plain 1.301kN
RS Stock No. 619-0468
BrandRS PRO
$8.66
Each
units
25mm 52mm Deep Groove 15mm Sealed - 1 7.8kN Steel - - - Plain 14kN
RS Stock No. 619-0159
BrandRS PRO
$5.79
Each
units
15mm 24mm Deep Groove 5mm Sealed - 1 800N Steel - - - Plain 1.56kN
RS Stock No. 618-9878
BrandRS PRO
$3.27
Each
units
5mm 16mm Miniature 5mm Sealed - 1 675N Steel - - - Plain 1.729kN
RS Stock No. 618-9913
BrandRS PRO
$4.35
Each
units
6mm 19mm Miniature 6mm Sealed - 1 896N Steel - - - Plain 2.336kN
RS Stock No. 619-0339
BrandRS PRO
$7.77
Each
units
20mm 47mm Deep Groove 14mm Sealed - 1 6.55kN Steel - - - Plain 12.7kN
RS Stock No. 619-0187
BrandRS PRO
$5.06
Each
units
15mm 35mm Deep Groove 11mm Sealed - 1 3.75kN Steel - - - Plain 7.8kN
RS Stock No. 619-0345
BrandRS PRO
$5.56
Each
units
20mm 42mm Deep Groove 12mm Sealed - 1 5kN Steel - - - Plain 9.63kN
RS Stock No. 618-9929
BrandRS PRO
$4.35
Each
units
7mm 19mm Miniature 6mm Sealed - 1 896N Steel - - - Plain 2.336kN
RS Stock No. 619-0323
BrandRS PRO
$7.39
Each
units
20mm 32mm Deep Groove 7mm Sealed - 1 1.5kN Steel - - - Plain 2.7kN
RS Stock No. 619-0288
BrandRS PRO
$6.50
Each
units
17mm 26mm Deep Groove 5mm Sealed - 1 930N Steel - - - Plain 1.68kN
RS Stock No. 618-9884
BrandRS PRO
$3.27
Each
units
3mm 10mm Miniature 4mm Shielded - 1 219N Steel - - - Plain 631N
RS Stock No. 893-7461
BrandRS PRO
$7.47
Each
units
10mm 22mm Deep Groove 6mm Sealed - 1 1.04kN Stainless Steel - - - Plain 2.16kN
RS Stock No. 893-7474
BrandRS PRO
$23.30
Each
units
25mm 42mm Deep Groove 9mm Sealed - 1 3.6kN Stainless Steel - - - Plain 5.6kN
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