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. 126-2383
Mfr. Part No.6205-2Z/C4
BrandSKF
HK$77.20
Each
units
25mm 52mm Deep Groove 15mm Shielded - 1 7.8kN Steel Steel Steel Steel Plain 14.8kN
RS Stock No. 285-0649
Mfr. Part No.609-2Z
BrandSKF
HK$40.84
Each
units
9mm 24mm Deep Groove 7mm Shielded - 1 1.66kN - - Steel - Plain 3.9kN
New
RS Stock No. 207-6981
Mfr. Part No.61814
BrandSKF
HK$1,067.70
Each
units
70mm 90mm - 10mm Open - - - - - - - - -
New
RS Stock No. 205-5003
Mfr. Part No.6215/C3
BrandSKF
HK$735.48
Each
units
75 130 Deep Groove 25 Open - - - - - - - - -
New
RS Stock No. 207-6288
Mfr. Part No.51136 M
BrandSKF
HK$5,965.62
Each
units
180mm 225mm - 34mm Open - - - - - - - - -
RS Stock No. 191-3838
Mfr. Part No.6204-C-C3
BrandINA
HK$48.85
Each
units
20mm 47mm Deep Groove 14mm Open - 1 6600N - - Sheet Steel - Plain 13900N
RS Stock No. 619-0109
Mfr. Part No.6801-2RS
BrandRS PRO
HK$25.28
Each
units
12mm 21mm Deep Groove 5mm Sealed - 1 670N Steel - - - Plain 1.43kN
New
RS Stock No. 207-6345
Mfr. Part No.53314
BrandSKF
HK$4,230.05
Each
units
70mm 125mm Thrust 44.2mm Open - - - - - - - - -
New
RS Stock No. 207-5366
Mfr. Part No.6320/C3
BrandSKF
HK$2,559.93
Each
units
100mm 215mm - 47mm Open - - - - - - - - -
New
RS Stock No. 207-5542
Mfr. Part No.7314 BECBY
BrandSKF
HK$3,446.19
Each
units
70mm 150mm - 35mm Open - - - - - - - - -
RS Stock No. 137-1458
Mfr. Part No.6310-2Z-C3
BrandFAG
HK$442.13
Each
units
50mm 110mm Deep Groove 27mm Double Shielded - 1 38500N Steel - Steel - Plain 68000N
RS Stock No. 746-346
Mfr. Part No.KLNJ5/8-2ZRY
BrandNSK-RHP
HK$193.26
Each
units
15.87mm 34.92mm Deep Groove 8.73mm Shielded - 1 3.37kN Steel - - - Plain 5.8kN
New
RS Stock No. 207-6315
Mfr. Part No.51311
BrandSKF
HK$1,038.41
Each
units
55mm 105mm Thrust 35mm Open - - - - - - - - -
RS Stock No. 126-2384
Mfr. Part No.6205ETN9
BrandSKF
HK$155.70
Each
units
25mm 52mm Deep Groove 15mm Open - 1 7.8kN Steel Steel - Steel Plain 14.8kN
RS Stock No. 893-7414
Mfr. Part No.SS6304-2RS
BrandRS PRO
HK$153.64
Each
units
20mm 52mm Deep Groove 15mm Sealed - 1 7.11kN Stainless Steel - - - Plain 14.31kN
New
RS Stock No. 207-6673
Mfr. Part No.6215-2Z/C4
BrandSKF
HK$1,138.62
Each
units
75mm 130mm - 25mm - - - - - - - - - -
RS Stock No. 764-3506
Mfr. Part No.6216
BrandSKF
HK$726.42
Each
units
80mm 140mm Deep Groove 26mm Open - 1 55kN Steel - Steel - Plain 72.8kN
RS Stock No. 134-9093
Mfr. Part No.BSF3080DDUHP2BDT R BE4L5
BrandNSK
HK$4,912.89
1 Pair
Pair(s)
30mm 80mm Angular Contact 56mm Sealed 80mm 2 111kN Steel - - - Flanged 46.5kN
RS Stock No. 285-0778
Mfr. Part No.6009-2RS1
BrandSKF
HK$163.48
Each
units
45mm 75mm Deep Groove 16mm Sealed - 1 14.6kN - - Steel - Plain 22.1kN
RS Stock No. 505-738
Mfr. Part No.2303E-2RS1TN9
BrandSKF
HK$463.57
Each
units
17mm 47mm Self Aligning 19mm Sealed - 2 3.4kN Steel - Fibreglass Reinforced PA - Plain 12.7kN