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. 667-1059
Mfr. Part No.6206-2Z/C3
BrandSKF
R 163.76
Each
units
30mm 62mm Deep Groove 16mm Shielded - 1 11.2kN Steel - Steel - Plain 20.3kN
RS stock no. 285-1305
Mfr. Part No.1206 ETN9
BrandSKF
R 401.70
Each
units
30mm 62mm Self Aligning 16mm Open - 2 4.65kN Steel - Fibreglass Reinforced PA - Plain 15.6kN
RS stock no. 286-7568
Mfr. Part No.6000
BrandSKF
R 46.68
Each
units
10mm 26mm Deep Groove 8mm Open - 1 1.96kN Steel - Steel - Plain 4.75kN
RS stock no. 492-2207
Mfr. Part No.6306ZZ
BrandNSK
R 214.58
Each
units
30mm 72mm Deep Groove 19mm Shielded - 1 15kN Steel - Steel - Plain 26.7kN
RS stock no. 893-7446
Mfr. Part No.SS61802-2RS
BrandRS PRO
R 83.63
Each
units
15mm 24mm Deep Groove 5mm Sealed - 1 1.04kN Stainless Steel - - - Plain 1.68kN
RS stock no. 409-0877
Mfr. Part No.51104
BrandNSK
R 165.68
Each
units
20mm 35mm Thrust 10mm - - 1 26.6kN Steel - Steel - Plain 15.1kN
RS stock no. 286-8555
Mfr. Part No.51108
BrandSKF
R 347.52
Each
units
40mm 60mm Thrust 13mm - - 1 55kN Steel Steel Pressed Steel - Plain 23kN
RS stock no. 285-1557
Mfr. Part No.7205 BEP
BrandSKF
R 389.59
Each
units
25mm 52mm Angular Contact 15mm Open - 1 9.3kN Steel - Fibreglass Reinforced Nylon 66 - Plain 14.8kN
RS stock no. 667-1116
Mfr. Part No.6308-2Z/C3
BrandSKF
R 444.08
Each
units
40mm 90mm Deep Groove 23mm Shielded - 1 24kN Steel - Steel - Plain 42.3kN
RS stock no. 409-0934
Mfr. Part No.51110
BrandNSK
R 319.15
Each
units
50mm 70mm Thrust 14mm - - 1 75.5kN Steel - Steel - Plain 29kN
RS stock no. 618-9991
Mfr. Part No.6000-2RS
BrandRS PRO
R 38.01
Each
units
10mm 26mm Deep Groove 8mm Sealed - 1 1.96kN Steel - - - Plain 4.62kN
RS stock no. 619-0468
Mfr. Part No.6205-2RS
BrandRS PRO
R 73.44
Each
units
25mm 52mm Deep Groove 15mm Sealed - 1 7.8kN Steel - - - Plain 14kN
RS stock no. 667-1049
Mfr. Part No.6202-2Z/C3
BrandSKF
R 76.68
Each
units
15mm 35mm Deep Groove 11mm Shielded - 1 3.75kN Steel - Steel - Plain 8.06kN
RS stock no. 619-0626
Mfr. Part No.6310-2RS
BrandRS PRO
R 438.95
Each
units
50mm 110mm Deep Groove 27mm Sealed - 1 38kN Steel - - - Plain 61.8kN
RS stock no. 612-6057
Mfr. Part No.R-2210X2DDRA1P25LY121
BrandNMB
R 55.08
Each (In a Pack of 2)
units
10mm 22mm Radial 6mm Sealed - 1 1.273kN Steel Chromium Steel Chromium Steel Chromium Steel Plain 2.697kN
RS stock no. 764-3607
Mfr. Part No.6312-2Z
BrandSKF
R 1,034.75
Each
units
60mm 130mm Deep Groove 31mm Shielded - 1 52kN Steel - Steel - Plain 85.2kN
RS stock no. 612-5751
Mfr. Part No.DDL-740ZZHA3P25LY121
BrandNMB
R 61.65
Each (In a Pack of 2)
units
4mm 7mm Radial 2.5mm Shielded - 1 106N Steel Martensitic Stainless Steel Metallic Crown Steel Martensitic Stainless Steel Plain 250N
RS stock no. 764-3493
Mfr. Part No.6212
BrandSKF
R 466.48
Each
units
60mm 110mm Deep Groove 22mm Open - 1 36kN Steel - Steel - Plain 55.3kN
RS stock no. 409-0833
Mfr. Part No.51100
BrandNSK
R 170.86
Each
units
10mm 24mm Thrust 9mm - - 1 14kN Steel - Steel - Plain 10.1kN
RS stock no. 286-7956
Mfr. Part No.6202
BrandSKF
R 69.54
Each
units
15mm 35mm Deep Groove 11mm Open - 1 3.75kN Steel - Steel - Plain 8.06kN