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Parameter in selecting slewing bearings

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Slewing Bearing Catalog
May 24, 2019
What materials used for the slewing bearing of the crane is the best?
May 27, 2019
Published by admin at May 27, 2019
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Slewing bearings have heavy load-bearing characteristics and are commonly used for lifting appliances, excavators, turntable, wind turbines, telescopes and tank turrets. Through the improvement of machining tools and the upgrade of design technology, slewing bearings can be used in smaller space, more complex and more precision markets.

The correct choice of slewing bearing depends on loading, hardness, speed, size and rotational flexibility. The customer and manufacturer jointly select the structure to help optimize system performance at the lowest cost and with trouble-free operation. Normal load capacity is the main factor in selecting the bearing, but other parameters contribute the suitable type.

1、it is generally necessary to use double-row four-point contact ball bearings if there is a large torque demands

2、 increase the stiffness generally use roller bearings.

3、 to maximize load bearing use cross roller (two or three row roller bearings)

For applications in increasing rigidity and load, large size bearings are required, but for applications in sensitivity area, such as robots and controls, small size bearings are required. The slewing bearing with smaller inner diameter weight is reduced. At the same time, the rotation speed is high and the structural deformation is required to be changed accordingly.

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