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. For further information about ball bearings and how to decipher the codes on them, see our ball bearings guide.

Ball bearings that spin at high speeds require lubricant and a clean environment. Having the ball bearings shielded offers better protection against dirt and grease, therefore, the ball bearings have a longer lifespan. Sealed ball bearing offer reliability as they reduce the risk of dust and dirt entering the ball bearing mechanism. They also help to preserve the lubricant within the bearing and keep it running smoother, for longer.

Types of Ball Bearings

Ball bearings are used in machines to lessen and transform sliding friction to rolling friction and support radial and axial loads. 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. Deep Groove refers to the race (the groove where the balls rest). There is therefore a larger space between the inner and outer rings, than the diameter of the ball. This leaves space for the rubber seals.
  • 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 as well as:

  • Food and Beverage Industry
  • Pharmaceutica
  • Medical industry
  • Engines and Pumps
  • Motorsports
  • Printing

...
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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. 667-1052
Mfr. Part No.6204-2Z/C3
BrandSKF
PHP473.15
Each
units
20mm 47mm Deep Groove 14mm Shielded - 1 6.55kN Steel - Steel - Plain 13.5kN
RS Stock No. 619-0121
Mfr. Part No.6001-2RS
BrandRS PRO
PHP178.59
Each
units
12mm 28mm Deep Groove 8mm Sealed - 1 2.36kN Steel - - - Plain 5.07kN
RS Stock No. 409-0142
Mfr. Part No.6004ZZ
BrandNSK
PHP415.58
Each
units
20mm 42mm Deep Groove 12mm Shielded - 1 5kN Steel - Steel - Plain 9.4kN
RS Stock No. 893-0331
Mfr. Part No.W61901-2RS1
BrandSKF
PHP1,869.39
Each
units
12mm 24mm Deep Groove 6mm Sealed - 1 1.46kN Stainless Steel Stainless Steel Stainless Steel Stainless Steel Plain 2.51kN
RS Stock No. 285-1563
Mfr. Part No.7206 BEP
BrandSKF
PHP2,232.87
Each
units
30mm 62mm Angular Contact 16mm Open - 1 14.3kN Steel - Fibreglass Reinforced Nylon 66 - Plain 22.5kN
RS Stock No. 286-7669
Mfr. Part No.6005
BrandSKF
PHP435.89
Each
units
25mm 47mm Deep Groove 12mm Open - 1 6.55kN Steel - Steel - Plain 11.9kN
RS Stock No. 619-0216
Mfr. Part No.6201-2Z
BrandRS PRO
PHP185.81
Each
units
12mm 32mm Deep Groove 10mm Shielded - 1 3.1kN Steel - - - Plain 6.89kN
RS Stock No. 505-956
Mfr. Part No.6313-2Z/C3
BrandSKF
PHP9,210.57
Each
units
65mm 140mm Deep Groove 33mm Shielded - 1 60kN Steel - Steel - Plain 97.5kN
RS Stock No. 492-1888
Mfr. Part No.6803DD
BrandNSK
PHP785.77
Each
units
17mm 26mm Deep Groove 5mm Sealed - 1 1.57kN Steel - Steel - Plain 2.63kN
RS Stock No. 667-1128
Mfr. Part No.6310-2Z/C3
BrandSKF
PHP3,387.97
Each
units
50mm 110mm Deep Groove 27mm Shielded - 1 38kN Steel - Steel - Plain 65kN
RS Stock No. 667-1061
Mfr. Part No.6208-2Z/C3
BrandSKF
PHP1,277.24
Each
units
40mm 80mm Deep Groove 18mm Shielded - 1 19kN Steel - Steel - Plain 32.5kN
RS Stock No. 612-5824
Mfr. Part No.DDL-1360ZZMTRA1P24LY121
BrandNMB
PHP370.525
Each (In a Pack of 2)
units
6mm 13mm Radial 5mm Shielded - 1 438N Steel Martensitic Stainless Steel Metallic Ribbon Steel Martensitic Stainless Steel Plain 1.083kN
RS Stock No. 505-883
Mfr. Part No.6311/C3
BrandSKF
PHP3,766.91
Each
units
55mm 120mm Deep Groove 29mm Open - 1 45kN Steel - Steel - Plain 74.1kN
RS Stock No. 619-0187
Mfr. Part No.6202-2RS
BrandRS PRO
PHP181.35
Each
units
15mm 35mm Deep Groove 11mm Sealed - 1 3.75kN Steel - - - Plain 7.8kN
RS Stock No. 505-823
Mfr. Part No.6312-2Z/C3
BrandSKF
PHP3,702.05
Each
units
60mm 130mm Deep Groove 31mm Shielded - 1 52kN Steel - Steel - Plain 85.2kN
RS Stock No. 667-1103
Mfr. Part No.6303-2Z/C3
BrandSKF
PHP534.31
Each
units
17mm 47mm Deep Groove 14mm Shielded - 1 6.55kN Steel - Steel - Plain 14.3kN
RS Stock No. 667-1106
Mfr. Part No.6304-2Z/C3
BrandSKF
PHP617.98
Each
units
20mm 52mm Deep Groove 15mm Shielded - 1 7.8kN Steel - Steel - Plain 16.8kN
RS Stock No. 409-0928
Mfr. Part No.51108
BrandNSK
PHP1,137.93
Each
units
40mm 60mm Thrust 13mm - - 1 63kN Steel - Steel - Plain 27.1kN
RS Stock No. 286-8482
Mfr. Part No.51102
BrandSKF
PHP1,080.58
Each
units
15mm 28mm Thrust 9mm - - 1 15kN Steel Steel Pressed Steel - Plain 9kN
RS Stock No. 442-0105
Mfr. Part No.6205-2RSH
BrandSKF
PHP596.80
Each
units
25mm 52mm Deep Groove 15mm Sealed - 1 7.8kN Steel - Steel - Plain 14.8kN