Slewing ring is a comprehensive bearings to withstand a large amount, because it looks like a dish, it is also known as the “wheel bearings.” Slewing ring simultaneously to withstand greater axial load, radial load and overturning moment, and can replace the function of several sets of ordinary bearing combination, is an efficient combination of high load bearing capacity, often in large machinery, heavy machinery widely used. The following small series to introduce the principle of slewing bearing selection:
Slewing bearing selection principles:
1, the structure of the purchase:
Slewing ring in the structure into a single row slewing bearing, cross roller slewing bearings, double-row slewing bearing slewing ring and three rows of column four. The same dimensions of slewing bearings, single-row ball bearing capacity is higher than the cross roller and double-row ball. In overturning moment loads below 160 tons rice, use a single-row slewing bearing its price is higher than the three-row-column slewing ring, is the preferred form. When the overturning moment more than 160 tons of rice should give priority to the selection of three rows of pillar slewing ring.
2, slewing ring series options:
In China slewing ring usually has three series of sizes, HS series, Q series and 01 series. When selecting a different series slewing ring, preferably selected according to the conditions and the environment, can accurately find the right slewing ring.
3, slewing ring parameter comparison:
Raceway hardness of HRC 60 59 58 57 56 55 53 50
Comparison of static capacity factor 1.53 1.39 1.29 1.16 1.06 1.00 0.82 0.58