Slewing ring is called "machine joint" in the machinery industry. It is an important transmission component required by the machinery that can withstand the relative reverse movement between two objects, axial force, radial force and tipping moment.

Slewing bearing

Heat treatment of slewing ring rail and gear:

The raceway of the slewing ring is subject to induction hardening treatment on the surface, and the quenching hardness is ensured to be within HRC55~62, which can reach sufficient hardening degree.

Because of the need to transmit force, one ring of slewing ring is usually provided with teeth. The heat treatment condition of gears is generally normalized or quenched and tempered. The tooth surface can also be quenched according to the user's requirements. The quenching hardness is HRC50~60, and enough degree can be ensured. According to different applications, gear quenching can be divided into full tooth quenching and single tooth induction quenching. Single tooth induction hardening can also be divided into tooth surface root hardening and tooth surface hardening