BEARINGS PRODUCTION RANGE

Single row angular contact ball bearings
RKB single row angular contact ball bearings are designed to accommodate combined loads acting in radial
and axial direction. They can take axial loads in one direction only.
When radially loaded, in the bearing occurs an axially acting load which has to be compensated. For this
reason one bearing or paired bearings are mounted on each shaft end.
These bearings are not separable and their use at relatively high speed is allowed.
Manufactured in various constructive versions, they can be with different contact angles, depending on the
application (suffix AC, A and B).
RKB produces two types of single row angular contact ball bearings: those of normal design and those
intended for paired mounting (used respectively for tandem arrangement, DB and DF arrangements when
axial loads have to be taken in both directions).
In the case of single row angular contact ball bearings the efforts between rings and rolling elements are
transmitted at an angle to a plane perpendicular to the bearing axis. The value of this angle depends on
the magnitude of the raceway radius, ball diameter and radial clearance in the bearing when the curvature
centers of the raceway are in the same plane.
The main dimensions are in accordance with ISO/R 15. The values for the tolerance of the normal, P6 and P5
classes conform to ISO 492.
Internal axial clearance or preload is obtained only when the bearings are mounted in the assembly and
depends on the location of the second bearing which assures the shaft axial guiding.
RKB single row angular contact ball bearings are fitted with a cage type depending on series and size:
pressed steel sheet cage, machined brass cage guided on balls or on the inner ring and machined steel cage.
Large size paired 718 and 719 series bearings in DF and DB configuration for power transmission equipment
are included in RKB production program.
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