Angular Contact Bearings
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Angular contact ball bearings
The raceways of the inner and outer rings of this type of bearing are made with a set contact angle.
These bearings are not separable. Because the balls are inserted using a counter-bored construction, a greater number of balls can be installed than with deep groove ball bearings.
Standard cage materials can be pressed steel, high-strength brass, or polyamide. Cage materials depend on the bearing series and/or service conditions. Single-row angular contact ball bearings can support radial, axial, or combined loads; however, any axial load must be in one direction. This type of bearing is generally used in pairs to handle the induced load resulting from the internal axial force generated by the applied radial load. When mounting two individual bearings in adjacent positions, NACHI provides these matched pieces (pairs) with pre-set clearance. Matched matched bearings are paired assemblies. Matched matched bearings can be arranged back-to-back (DB), face-to-face, or in tandem (DT). DB or DT assemblies can support bidirectional axial loads.
Double row angular contact ball bearings.
The construction of this type of ball bearing is similar to a back-to-back assembly of two single-row angular contact ball bearings. Because fewer balls can be inserted per row compared to single-row angular contact ball bearings, a double-row angular contact ball bearing will have a lower load capacity than a back-to-back assembly of equivalent size/series of two single-row angular contact ball bearings. This type of bearing can support radial, axial, moment, and bidirectional loads.
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