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庫存編號 109-961
製造零件編號FT8M/1B/D
BrandBNL
HK$10.38
單位
8.1mm 21.7mm Thrust 3mm - - 1 40kg Plastic Carbon Steel Acetal Acetal Plain -
RS庫存編號 747-620
製造零件編號DDRIF-418ZZMTHA5P24LY121
BrandNMB
HK$59.79
/個 (每包:2個)
單位
3.17mm 6.35mm Radial 2.76mm Shielded 7.51mm 1 97N Steel Martensitic Stainless Steel Metallic Crown Steel Martensitic Stainless Steel Flanged 285N
RS庫存編號 612-5880
製造零件編號DDL-1470ZZMTRA1P24LY121
BrandNMB
HK$57.50
/個 (每包:2個)
單位
7mm 14mm Radial 5mm Shielded - 1 511N Steel Martensitic Stainless Steel Metallic Ribbon Steel Martensitic Stainless Steel Plain 1.175kN
RS庫存編號 747-658
製造零件編號DDRI-614ZZHA5P24LY121
BrandNMB
HK$39.51
/個 (每包:2個)
單位
6.35mm 9.52mm Radial 3.17mm Shielded - 1 205N Steel Martensitic Stainless Steel Metallic Crown Steel Martensitic Stainless Steel Plain 417N
RS庫存編號 540-334
製造零件編號DDRF1350ZZMTRA5P24LY121
BrandNMB
HK$53.315
/個 (每包:2個)
單位
5mm 13mm Radial 4mm Shielded 15mm 1 422N Steel Martensitic Stainless Steel Metallic Ribbon Steel Martensitic Stainless Steel Flanged 1.074kN
RS庫存編號 286-8066
製造零件編號6207
BrandSKF
HK$99.75
單位
35mm 72mm Deep Groove 17mm Open - 1 15.3kN Steel - Steel - Plain 27kN
RS庫存編號 764-3746
製造零件編號6208ZZC3
BrandNSK
HK$149.12
單位
40mm 80mm Deep Groove 18mm Shielded - 1 17.9kN Steel - Pressed Steel - Plain 29.1kN
RS庫存編號 442-0076
製造零件編號6203-2RSH
BrandSKF
HK$57.44
單位
17mm 40mm Deep Groove 12mm Sealed - 1 4.75kN Steel - Steel - Plain 9.95kN
RS庫存編號 884-1216
製造零件編號AC688ZZ/4N/D
BrandBNL
HK$40.12
毎包:2 個
Bag(s)
8mm 16mm Radial 5mm Double Shielded - 1 2.5kg Plastic Stainless Steel Acetal Acetal Plain -
RS庫存編號 408-8436
製造零件編號6304DDU
BrandNSK
HK$87.75
單位
20mm 52mm Deep Groove 15mm Sealed - 1 7.9kN Steel - Steel - Plain 15.9kN
RS庫存編號 409-0439
製造零件編號6203ZZ
BrandNSK
HK$41.93
單位
17mm 40mm Deep Groove 12mm Shielded - 1 4.8kN Steel - Steel - Plain 9.55kN
RS庫存編號 884-1228
製造零件編號AC608Z/4N/D
BrandBNL
HK$41.40
毎包:2 個
Bag(s)
8mm 22mm Radial 7mm Shielded - 1 7.5kg Plastic Stainless Steel Acetal Acetal Plain -
RS庫存編號 764-3516
製造零件編號6312
BrandSKF
HK$445.00
單位
60mm 130mm Deep Groove 31mm Open - 1 52kN Steel - Steel - Plain 85.2kN
RS庫存編號 408-9883
製造零件編號608ZZ
BrandNSK
HK$42.28
單位
8mm 22mm Deep Groove 7mm Shielded - 1 1.37kN Steel - Steel - Plain 3.3kN
RS庫存編號 747-759
製造零件編號DDL-950ZZHA5P24LY121
BrandNMB
HK$63.06
/個 (每包:2個)
單位
5mm 9mm Radial 3mm Shielded - 1 207N Steel Martensitic Stainless Steel Metallic Crown Steel Martensitic Stainless Steel Plain 495N
RS庫存編號 618-9862
BrandRS PRO
HK$13.12
單位
4mm 13mm Miniature 5mm Sealed - 1 488N Steel - - - Plain 1.301kN
RS庫存編號 667-1194
製造零件編號6207-2RS1/C3
BrandSKF
HK$137.70
單位
35mm 72mm Deep Groove 17mm Sealed - 1 15.3kN Steel - Steel - Plain 27kN
RS庫存編號 409-0502
製造零件編號6205ZZ
BrandNSK
HK$53.72
單位
25mm 52mm Deep Groove 15mm Shielded - 1 7.85kN Steel - Steel - Plain 14kN
RS庫存編號 618-9957
BrandRS PRO
HK$15.10
單位
8mm 22mm Miniature 7mm Sealed - 1 1.379kN Steel - - - Plain 3.293kN
RS庫存編號 667-1030
製造零件編號608-2Z/C3
BrandSKF
HK$38.57
單位
8mm 22mm Deep Groove 7mm Shielded - 1 1.37kN Steel - Steel - Plain 3.45kN