It is fifth wheel with external gears, high precision and position control.
Also when rotating, the ball slewing ring should produce small noise, this need the rotation must have minimal friction and resistance.
This need the raceway of the slew rings must have precision clearance, in order to make sure this requirement, we have designed a special workbench to inspect the clearance, after several times test.
Our finshed slew rings has been highly praised by customers and have received stable order from the customer whose company is fortune 500 company.
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