Slewing ring selection principle

Published :2010 -1-26 Source: JSTY without written authorization is forbidden and copying
(1) selection of structure type
Common structure type slewing ring there are four: single-row, cross roller, double row ball, three rows of pillar.
Based on our experience and calculations, the following conclusions:
 The same dimensions of slewing bearings, single-row cross roller bearing capacity than type and double-row ball.
In overturning moment load 160 t m or less, use a single-row ball slewing bearing its price higher than the three-row slewing pillar, as the preferred form. When the overturning moment above 160 tons of rice should be given precedence optional three-row slewing column.
(2) Single-row slewing Slewing bearing Series selection
In China, the current single-row slewing bearing has three series Dimensions: HS series, Q series and 01 series. For new users generally do not know how to choose the series, we believe that each family has its own advantages,installation and removal more convenient; generally only used with the radial load carrying loaded guns, only the inner and outer rings are single row bearings with ribs steady with a smaller or larger intermittent axial load axial load; has high loads, background noise, and high speed characteristics.
Needle roller bearings, compact structure, small radial size, load capacity, withstand greater radial load. Using high-cage, can correctly guide roller parallel to the axis.