Ball Bearings

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Ball bearings, or deep-groove bearings, extend the working life of equipment by enabling wheels, pulleys, and other rotating parts to reduce friction and move smoothly. Ball bearings have a series of round balls encased in a housing and support high axial or low-to-moderate radial loads. Axial (thrust) bearings support loads parallel to the axis, such as those exerted by a table supporting a weight.


A ball bearing is a type of rolling-element bearing that uses balls to maintain the separation between the bearing races. The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads. It achieves this by using at least three races to contain the balls and transmit the loads through the balls. In most applications, one race is stationary and the other is attached to the rotating assembly (e.g., a hub or shaft). As one of the bearing races rotates it causes the balls to rotate as well. Because the balls are rolling they have a much lower coefficient of friction than if two flat surfaces were sliding against each other.There are a number of different types of ball bearings, such as miniature, deep groove, and super precision. Miniature Ball Bearings are small bearings with bore sizes between 1 and 10 mm or up to half an inch. Bearings Direct offers a number of miniature ball bearings in both metric and inch sizes that meet ABEC7 precision class.



BEARINGS LIMITED 3320 Ball Bearings

8.3 mm 900 min-1
160 mm 270 mm

BEARINGS LIMITED 332 Ball Bearings

13360 kN 240 min-1
212 mm 847.050 kN

BEARINGS LIMITED 27684 Ball Bearings

1.00 mm 2.00 mm
40.00 mm 2700 rpm

BEARINGS LIMITED 305704 ZZ Ball Bearings

27.00 mm 72.0000 mm
6800 N 6700 rpm


17000 r/min 28 mm
1 mm 2 mm

BEARINGS LIMITED 51156 MP5 Ball Bearings

76 mm 0.6 mm
M 42x3 28 mm

BEARINGS LIMITED 6356 MC3 Ball Bearings

2 x LOR 584 284 kg
2 x 1/2-13 UNC 133.35 mm

BEARINGS LIMITED 22256 M/C3W33 Ball Bearings

0.018 kg 16000 r/min
36.5 kN 4.4 kN

BEARINGS LIMITED 23056 M/C3W33 Ball Bearings

45 mm A 20
22 mm M 20x40

BEARINGS LIMITED 23056 KM/C3W33 Ball Bearings

1.00 mm 592000 N
118.00 mm 3.00 mm

BEARINGS LIMITED 23052 KM/C3W33 Ball Bearings

46.038 mm 515.2 N·m
320.675 mm 67.793 mm

BEARINGS LIMITED 32952 Ball Bearings

22230 CCK/W33 158.75 mm
63.5 mm EPR 16