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( Above: Slewing berings _ Wind power slewing bearing _ wind turbine slewing bearing _ Nongeared bearing)
Slewing Bearing (Turnable Bearing) introduction:
Slewing bearing (Turnable bearing) is a large-scale integrated load bearing, which can bear large axial load, radial load and overturning moment. Slewing ring bearings are generally of inner gear or outer gear, mounting holes, lubrication holes (oil holes), and seals, which can make the host be an compact design, easy to guide and maintain.
Slewing bearings can be nongeared, internal gear and external gear.
The slewing bearing types are mainly as follows:1. Four-point contact ball slewing bearings2. Double-row different diameter ball slewing bearings3. Crossed cylindrical roller slewing bearings4. cross-tapered roller slewing bearings5. Triple-row cylindrical roller slewing bearings
Of these slewing bearings, four-point contact ball bearings are of high static load capacity, which are able to bear radial load, axial load and overturning moment.
Cross-cylindrical roller bearings mainly bear larger axial load and also carry overturning moment. Crossed-cylindrical roller bearings are of dynamic load capacity.
Cross-tapered roller bearings' pre-interference can can support a greater rigidity and rotary accuracy.
Double-row different diameter ball slewing bearings are able to bear greater overturning moment, which bear load mainly at axial.
three-row cylindrical roller bearings increase the carrying capacity and can bear a more heavy load, because forces are beared by diffenrent raceway. So three-row cylindrical roller bearing is a high carrying capacity of slewing bearings, because, in the same force cases, the diameter of the bearing can be greatly reduced. Hence the characteristics of the host is more compact.
In reality, slewing bearings are widely used in industry and known as "the machine joints", which are widely used in major applications:
Lifting machinery, Mining machinery, Construction machinery,
Port machinery, Ship machinery, High-precision Radar machinery,
Missile launchers and Other large rotary device.
( Above: Slewing berings _ Wind power slewing bearing _ wind turbine slewing bearing _ Internal gear bearing)
( Above: Slewing berings _ Wind power slewing bearing _ wind turbine slewing bearing _ Internal gear bearing)
( Above: Slewing berings _ slewing bearing package )
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