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$14.30
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$63.665
/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$51.995
/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 286-8066
製造零件編號6207
BrandSKF
HK$100.90
單位
35mm 72mm Deep Groove 17mm Open - 1 15.3kN Steel - Steel - Plain 27kN
RS庫存編號 442-0076
製造零件編號6203-2RSH
BrandSKF
HK$57.77
單位
17mm 40mm Deep Groove 12mm Sealed - 1 4.75kN Steel - Steel - Plain 9.95kN
RS庫存編號 540-334
製造零件編號DDRF1350ZZMTRA5P24LY121
BrandNMB
HK$71.04
/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 764-3746
製造零件編號6208ZZC3
BrandNSK
HK$169.20
單位
40mm 80mm Deep Groove 18mm Shielded - 1 17.9kN Steel - Pressed Steel - Plain 29.1kN
RS庫存編號 612-5739
製造零件編號DDR-830ZZRA1P25LY121
BrandNMB
HK$44.90
/個 (每包:2個)
單位
3mm 8mm Radial 4mm Shielded - 1 176N Steel Martensitic Stainless Steel Metallic Ribbon Steel Martensitic Stainless Steel Plain 553N
RS庫存編號 505-788
製造零件編號7307BEP
BrandSKF
HK$317.57
單位
35mm 80mm Angular Contact 21mm Open - 1 24.5kN Steel - Fibreglass Reinforced Nylon 66 - Plain 39kN
RS庫存編號 667-1194
製造零件編號6207-2RS1/C3
BrandSKF
HK$140.83
單位
35mm 72mm Deep Groove 17mm Sealed - 1 15.3kN Steel - Steel - Plain 27kN
RS庫存編號 285-0576
製造零件編號61804-2RZ
BrandSKF
HK$138.53
單位
20mm 32mm Deep Groove 7mm Shielded - 1 2.32kN Steel - Steel - Plain 4.03kN
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 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
RS庫存編號 286-7530
製造零件編號608
BrandSKF
HK$35.24
單位
8mm 22mm Deep Groove 7mm Open - 1 1.37kN Steel - Steel - Plain 3.45kN
RS庫存編號 409-0502
製造零件編號6205ZZ
BrandNSK
HK$70.47
單位
25mm 52mm Deep Groove 15mm Shielded - 1 7.85kN Steel - Steel - Plain 14kN
RS庫存編號 612-6136
製造零件編號609SSM3MTLY121
BrandNMB
HK$18.56
/個 (每包:2個)
單位
9mm 24mm - 7mm Shielded - - 1.368kN Steel - - - Plain 3.297kN
RS庫存編號 667-1116
製造零件編號6308-2Z/C3
BrandSKF
HK$252.94
單位
40mm 90mm Deep Groove 23mm Shielded - 1 24kN Steel - Steel - Plain 42.3kN
RS庫存編號 618-9957
製造零件編號608-2RS
BrandRS PRO
HK$21.05
單位
8mm 22mm Miniature 7mm Sealed - 1 1.379kN Steel - - - Plain 3.293kN
RS庫存編號 109-832
製造零件編號CM608/4N/D
BrandBNL
HK$86.49
單位
8mm 22mm Radial 7mm Open - 1 - Plastic Stainless Steel Acetal Acetal Plain -