Angular Contact Ball Bearings

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Angular contact ball bearings have inner and outer ring raceways that are displaced relative to each other in the direction of the bearing axis. This means that these bearings are designed to accommodate combined loads, i.e. simultaneously acting radial and axial loads.

The axial load carrying capacity of angular contact ball bearings increases as the contact angle increases. The contact angle is defined as the angle between the line joining the points of contact of the ball and the raceways in the radial plane, along which the combined load is transmitted from one raceway to another, and a line perpendicular to the bearing axis.

Angular contact ball bearings have an inner and outer ring with a double raceway. The two rows are so related that the contact angle is similar to a pair of back-to-back single row bearings. NTN’s 5200 and 5300 series offer continuous races and can carry thrust loads in either direction. The 3200 and 3300 series have filling slots, so it is necessary to mount them with the thrust load acting against the un-notched face of the rings.

Bearing Number Bore Dia Outer DIa Width Size
6 Inch | 152.4 Millimeter x 6.625 Inch | 168.275 Millimeter x 0.313 Inch | 7.95 Millimeter RBC BEARINGS KB060AR0 Angular Contact Ball Bearings Sleeve Bearings 34.0 N/A 0
5.5 Inch | 139.7 Millimeter x 6.125 Inch | 155.575 Millimeter x 0.313 Inch | 7.95 Millimeter RBC BEARINGS KB055XP0 Angular Contact Ball Bearings Bearings 0.0 N/A 0.067
5.5 Inch | 139.7 Millimeter x 6.125 Inch | 155.575 Millimeter x 0.313 Inch | 7.95 Millimeter RBC BEARINGS KB055AR0 Angular Contact Ball Bearings Angular Contact Ball Bearing 0.0 N/A 0.73
5 Inch | 127 Millimeter x 5.625 Inch | 142.875 Millimeter x 0.313 Inch | 7.95 Millimeter RBC BEARINGS KB050XP0 Angular Contact Ball Bearings Single Row Ball Bearing 0.0 N/A 0.146
5 Inch | 127 Millimeter x 5.625 Inch | 142.875 Millimeter x 0.313 Inch | 7.95 Millimeter RBC BEARINGS KB050AR0 Angular Contact Ball Bearings Flange Block 0.0 N/A 14.71
4.25 Inch | 107.95 Millimeter x 4.875 Inch | 123.825 Millimeter x 0.313 Inch | 7.95 Millimeter RBC BEARINGS KB042AR0 Angular Contact Ball Bearings Bearings 0.0 N/A 0.4
4.5 Inch | 114.3 Millimeter x 5.125 Inch | 130.175 Millimeter x 0.313 Inch | 7.95 Millimeter RBC BEARINGS KB045XP0 Angular Contact Ball Bearings Bearings 0.0 N/A 0
4.25 Inch | 107.95 Millimeter x 4.875 Inch | 123.825 Millimeter x 0.313 Inch | 7.95 Millimeter RBC BEARINGS KB042XP0 Angular Contact Ball Bearings Thrust Ball Bearings 0.0 N/A 11.793
4 Inch | 101.6 Millimeter x 4.625 Inch | 117.475 Millimeter x 0.313 Inch | 7.95 Millimeter RBC BEARINGS KB040AR0 Angular Contact Ball Bearings Bearings 0.0 N/A 0.1
4.5 Inch | 114.3 Millimeter x 5.125 Inch | 130.175 Millimeter x 0.313 Inch | 7.95 Millimeter RBC BEARINGS KB045AR0 Angular Contact Ball Bearings Angular Contact Ball Bearing 0.0 N/A 3.32
4 Inch | 101.6 Millimeter x 4.625 Inch | 117.475 Millimeter x 0.313 Inch | 7.95 Millimeter RBC BEARINGS KB040XP0 Angular Contact Ball Bearings Sleeve Bearings 1.0 N/A 0
3.5 Inch | 88.9 Millimeter x 4.125 Inch | 104.775 Millimeter x 0.313 Inch | 7.95 Millimeter RBC BEARINGS KB035XP0 Angular Contact Ball Bearings Sleeve Bearings 78.0 N/A 0
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