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. 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. 409-0170
Mfr. Part No.6005ZZ
BrandNSK
PHP470.65
Each
units
25mm 47mm Deep Groove 12mm Shielded - 1 5.85kN Steel - Steel - Plain 10.1kN
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. 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. 619-0676
Mfr. Part No.6206-2Z
BrandRS PRO
PHP396.03
Each
units
30mm 62mm Deep Groove 16mm Shielded - 1 11.2kN Steel - - - Plain 19.5kN
RS Stock No. 334-1534
Mfr. Part No.6002
BrandSKF
PHP336.76
Each
units
15mm 32mm Deep Groove 9mm Open - 1 2.85kN Steel - Steel - Plain 5.85kN
RS Stock No. 667-1074
Mfr. Part No.6210-2Z/C3
BrandSKF
PHP1,864.47
Each
units
50mm 90mm Deep Groove 20mm Shielded - 1 23.2kN Steel - Steel - Plain 37.1kN
RS Stock No. 123-4808
Mfr. Part No.6001-2Z/C3GJN
BrandSKF
PHP646.80
Each
units
12mm 28mm Deep Groove 8mm Shielded - 1 2.4kN Steel Ceramic Steel - Plain 5.4kN
RS Stock No. 285-2241
Mfr. Part No.51206
BrandSKF
PHP1,401.17
Each
units
30mm 52mm Thrust 16mm - - 1 51kN Steel Steel Pressed Steel - Plain 26kN
RS Stock No. 285-1541
Mfr. Part No.7204 BEP
BrandSKF
PHP1,723.16
Each
units
20mm 47mm Angular Contact 14mm Open - 1 8.3kN Steel - Fibreglass Reinforced Nylon 66 - Plain 14kN
RS Stock No. 285-2213
Mfr. Part No.51204
BrandSKF
PHP1,325.94
Each
units
20mm 40mm Thrust 14mm - - 1 41kN Steel Steel Pressed Steel - Plain 23kN
RS Stock No. 138-657
Mfr. Part No.DDR-1640HHRA1P25LY121
BrandNMB
PHP205.495
Each (In a Pack of 2)
units
4mm 16mm Radial 5mm Shielded - 1 671N Steel Martensitic Stainless Steel Metallic Ribbon Steel Martensitic Stainless Steel Plain 1.735kN
RS Stock No. 286-8038
Mfr. Part No.6205-2Z
BrandSKF
PHP537.13
Each
units
25mm 52mm Deep Groove 15mm Shielded - 1 7.8kN Steel - Steel - Plain 14.8kN
RS Stock No. 612-5931
Mfr. Part No.DDR-2280DDMTRA5P24LY121
BrandNMB
PHP284.23
Each (In a Pack of 2)
units
8mm 22mm - 7mm Sealed - 1 1.368kN Steel Martensitic Stainless Steel Metallic Ribbon Steel Martensitic Stainless Steel Plain 3.297kN
RS Stock No. 409-0439
Mfr. Part No.6203ZZ
BrandNSK
PHP366.71
Each
units
17mm 40mm Deep Groove 12mm Shielded - 1 4.8kN Steel - Steel - Plain 9.55kN
RS Stock No. 893-0265
Mfr. Part No.W6305-2RS1
BrandSKF
PHP7,296.89
Each
units
25mm 62mm Deep Groove 17mm Sealed - 1 2.9kN Stainless Steel Stainless Steel Stainless Steel Stainless Steel Plain 3.58kN
RS Stock No. 667-1217
Mfr. Part No.629-2RSH/C3
BrandSKF
PHP359.96
Each
units
9mm 26mm Deep Groove 8mm Sealed - 1 1.96kN Steel - Steel - Plain 4.75kN
RS Stock No. 506-371
Mfr. Part No.2309E-2RS1TN9
BrandSKF
PHP8,920.21
Each
units
45mm 100mm Self Aligning 36mm Sealed - 2 13.4kN Steel - Fibreglass Reinforced PA - Plain 39kN
RS Stock No. 619-0036
Mfr. Part No.608-2Z
BrandRS PRO
PHP152.47
Each
units
8mm 22mm Miniature 7mm Shielded - 1 1.379kN Steel - - - Plain 3.293kN
RS Stock No. 747-800
Mfr. Part No.DDL1280ZZMTHA5P24LY121
BrandNMB
PHP455.475
Each (In a Pack of 2)
units
8mm 12mm Radial 3.5mm Shielded - 1 246N Steel Martensitic Stainless Steel - Martensitic Stainless Steel Plain 506N