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. 286-8533
Mfr. Part No.51106
BrandSKF
PHP1,332.27
Each
units
30mm 47mm Thrust 11mm - - 1 36kN Steel Steel Pressed Steel - Plain 17kN
RS Stock No. 408-9883
Mfr. Part No.608ZZ1MC3E
BrandNSK
PHP326.25
Each
units
8mm 22mm Deep Groove 7mm Shielded - 1 1.37kN Steel - Steel - Plain 3.3kN
RS Stock No. 408-8357
Mfr. Part No.6206DDU
BrandNSK
PHP702.31
Each
units
30mm 62mm Deep Groove 16mm Sealed - 1 11.3kN Steel - Steel - Plain 19.5kN
RS Stock No. 441-9975
Mfr. Part No.6001-2RSH
BrandSKF
PHP390.19
Each
units
12mm 28mm Deep Groove 8mm Sealed - 1 2.36kN Steel Steel Steel Steel Plain 5.4kN
RS Stock No. 612-5723
Mfr. Part No.DDR-620ZZHA1P24LY121
BrandNMB
PHP320.45
Each (In a Pack of 2)
units
2mm 6mm Radial 3mm Shielded - 1 89N Steel Martensitic Stainless Steel Metallic Crown Steel Martensitic Stainless Steel Plain 279N
RS Stock No. 492-2049
Mfr. Part No.6309ZZ
BrandNSK
PHP2,004.57
Each
units
45mm 100mm Deep Groove 25mm Shielded - 1 32kN Steel - Steel - Plain 53kN
RS Stock No. 505-647
Mfr. Part No.6319/C3
BrandSKF
PHP20,362.94
Each
units
95mm 200mm Deep Groove 45mm Open - 1 118kN Steel - Steel - Plain 159kN
RS Stock No. 619-0452
Mfr. Part No.6805-2RS
BrandRS PRO
PHP318.87
Each
units
25mm 37mm Deep Groove 7mm Sealed - 1 2.6kN Steel - - - Plain 4.36kN
RS Stock No. 286-8561
Mfr. Part No.51109
BrandSKF
PHP1,903.84
Each
units
45mm 65mm Thrust 14mm - - 1 61kN Steel Steel Pressed Steel - Plain 24kN
RS Stock No. 667-1055
Mfr. Part No.6205-2Z/C3
BrandSKF
PHP466.13
Each
units
25mm 52mm Deep Groove 15mm Shielded - 1 7.8kN Steel - Steel - Plain 14.8kN
RS Stock No. 619-0496
Mfr. Part No.6206-2RS
BrandRS PRO
PHP412.57
Each
units
30mm 62mm Deep Groove 16mm Sealed - 1 11.2kN Steel - - - Plain 19.5kN
RS Stock No. 286-8527
Mfr. Part No.51105
BrandSKF
PHP1,238.06
Each
units
25mm 42mm Thrust 11mm - - 1 32kN Steel Steel Pressed Steel - Plain 16kN
RS Stock No. 285-1096
Mfr. Part No.6306-2Z
BrandSKF
PHP922.39
Each
units
30mm 72mm Deep Groove 19mm Shielded - 1 16kN Steel - Steel - Plain 29.6kN
RS Stock No. 286-8555
Mfr. Part No.51108
BrandSKF
PHP1,669.73
Each
units
40mm 60mm Thrust 13mm - - 1 55kN Steel Steel Pressed Steel - Plain 23kN
RS Stock No. 409-0546
Mfr. Part No.6206ZZ
BrandNSK
PHP628.30
Each
units
30mm 62mm Deep Groove 16mm Shielded - 1 11.3kN Steel - Steel - Plain 19.5kN
RS Stock No. 492-2112
Mfr. Part No.6802ZZ
BrandNSK
PHP692.86
Each
units
15mm 24mm Deep Groove 5mm Shielded - 1 1.26kN Steel - Steel - Plain 2.07kN
RS Stock No. 286-7502
Mfr. Part No.61805
BrandSKF
PHP910.44
Each
units
25mm 37mm Deep Groove 7mm Open - 1 2.6kN Steel - Steel - Plain 4.36kN
RS Stock No. 409-0013
Mfr. Part No.6000ZZ
BrandNSK
PHP288.95
Each
units
10mm 26mm Deep Groove 8mm Shielded - 1 1.97kN Steel - Steel - Plain 4.55kN
RS Stock No. 506-040
Mfr. Part No.6215
BrandSKF
PHP5,643.33
Each
units
75mm 130mm Deep Groove 25mm Open - 1 49kN Steel - Steel - Plain 68.9kN
RS Stock No. 492-1923
Mfr. Part No.6805DD
BrandNSK
PHP1,020.84
Each
units
25mm 37mm Deep Groove 7mm Sealed - 1 3.15kN Steel - Steel - Plain 4.5kN