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. 408-9883
Mfr. Part No.608ZZ1MC3E
BrandNSK
TWD152.00
Each
units
8mm 22mm Deep Groove 7mm Shielded - 1 1.37kN Steel - Steel - Plain 3.3kN
RS Stock No. 409-0401
Mfr. Part No.6202ZZ
BrandNSK
TWD170.00
Each
units
15mm 35mm Deep Groove 11mm Shielded - 1 3.75kN Steel Steel Steel Steel Plain 7.65kN
RS Stock No. 409-0013
Mfr. Part No.6000ZZ
BrandNSK
TWD163.00
Each
units
10mm 26mm Deep Groove 8mm Shielded - 1 1.97kN Steel - Steel - Plain 4.55kN
RS Stock No. 409-0502
Mfr. Part No.6205ZZ
BrandNSK
TWD249.00
Each
units
25mm 52mm Deep Groove 15mm Shielded - 1 7.85kN Steel - Steel - Plain 14kN
RS Stock No. 409-0546
Mfr. Part No.6206ZZ
BrandNSK
TWD323.00
Each
units
30mm 62mm Deep Groove 16mm Shielded - 1 11.3kN Steel - Steel - Plain 19.5kN
RS Stock No. 667-0999
Mfr. Part No.6002-2Z/C3
BrandSKF
TWD195.00
Each
units
15mm 32mm Deep Groove 9mm Shielded - 1 2.85kN Steel - Steel - Plain 5.85kN
RS Stock No. 492-2207
Mfr. Part No.6306ZZ
BrandNSK
TWD469.00
Each
units
30mm 72mm Deep Groove 19mm Shielded - 1 15kN Steel - Steel - Plain 26.7kN
RS Stock No. 505-924
Mfr. Part No.6211/C3
BrandSKF
TWD1,009.00
Each
units
55mm 100mm Deep Groove 21mm Open - 1 29kN Steel - Steel - Plain 46.2kN
RS Stock No. 667-1172
Mfr. Part No.6201-2RSH/C3
BrandSKF
TWD191.00
Each
units
12mm 32mm Deep Groove 10mm Sealed - 1 3.1kN Steel - Steel - Plain 7.28kN
RS Stock No. 764-3581
Mfr. Part No.6012-2Z
BrandSKF
TWD915.00
Each
units
60mm 95mm Deep Groove 18mm Shielded - 1 23.2kN Steel - Steel - Plain 30.7kN
RS Stock No. 492-2178
Mfr. Part No.623ZZ
BrandNSK
TWD177.00
Each
units
3mm 10mm Deep Groove 4mm Shielded - 1 218N Steel - Steel - Plain 630N
RS Stock No. 409-0350
Mfr. Part No.6200ZZ
BrandNSK
TWD163.00
Each
units
10mm 30mm Deep Groove 9mm Shielded - 1 2.39kN Steel - Steel - Plain 5.1kN
RS Stock No. 619-0036
Mfr. Part No.608-2Z
BrandRS PRO
TWD82.00
Each
units
8mm 22mm Miniature 7mm Shielded - 1 1.379kN Steel - - - Plain 3.293kN
RS Stock No. 667-1190
Mfr. Part No.6206-2RS1/C3
BrandSKF
TWD420.00
Each
units
30mm 62mm Deep Groove 16mm Sealed - 1 11.2kN Steel - Steel - Plain 20.3kN
RS Stock No. 286-7546
Mfr. Part No.608-2Z
BrandSKF
TWD155.00
Each
units
8mm 22mm Deep Groove 7mm Shielded - 1 1.37kN Steel Steel Steel Steel Plain 3.45kN
RS Stock No. 138-635
Mfr. Part No.DDR-1650HHMTRA1P24LY121
BrandNMB
TWD161.00
Each (In a Pack of 2)
units
5mm 16mm Radial 5mm Shielded - 1 671N Steel Martensitic Stainless Steel Metallic Ribbon Steel Martensitic Stainless Steel Plain 1.735kN
RS Stock No. 505-839
Mfr. Part No.6311-2Z/C3
BrandSKF
TWD1,871.00
Each
units
55mm 120mm Deep Groove 29mm Shielded - 1 45kN Steel - Steel - Plain 74.1kN
RS Stock No. 409-0877
Mfr. Part No.51104
BrandNSK
TWD397.00
Each
units
20mm 35mm Thrust 10mm - - 1 26.6kN Steel - Steel - Plain 15.1kN
RS Stock No. 409-0114
Mfr. Part No.6003ZZ
BrandNSK
TWD185.00
Each
units
17mm 35mm Deep Groove 10mm Shielded - 1 3.25kN Steel - Steel - Plain 6kN
RS Stock No. 409-0085
Mfr. Part No.6002ZZ
BrandNSK
TWD176.00
Each
units
15mm 32mm Deep Groove 9mm Shielded - 1 2.83kN Steel - Steel - Plain 5.6kN