The use of the slewing bearing is widespread. The main structure include triple-row cylindrical roller slewing bearing,
double-row ball slewing bearing, cross cylindrical roller slewing bearing, four-point contact ball bearing, etc. As the
equipment manufacturing industry develops, more and more enterprises are using non-standard-structure slewing
bearings in special application. 80% of our slewing bearings are based on non-standard design.
roller slewing bearings
Features:Main structural characteristics: 1:1 cross arrangement of cylindrical rollers.The bearing with this
structure features high stability, high precision, and high impact resistance. For example, the cannon’s ro-
tary base uses this kind of bearing.
ball slewing bearings
Features:The four-point contact ball bearing is separable bearing, typically available in two structures as
follows: QJ 0000 – two half inner rings and one complete outer ring; QJF 0000 – two half outer rings and
one complete inner ring.
Double row angular
contact ball slewing bearings
Features:Main structural characteristics: two rows of steel balls of different diameters areplaced to bear
the axial force and upsetting moment. The most prominent feature is flexible rotation, but its bearing
capacity is lower than that of the triple-row cylindrical roller
Three row cylindrical
roller slewing bearing
Features:Main structure characteristics: two rows of cylindrical rollers are laid horizontally around the
circumference mainly to bear high axial load and upsetting moment; and one row of cylindrical rollers
are laid vertically mainly for the upsetting moment-induced radial