THB Bearing Co.Ltd

As the largest and heaviest slewing ring exported from China, the outer diameter is over 6000mm and the weight is over 13 metric tons.

The structure is triple row cylindrical roller type with external gear.

In order to have the best and stable mechanical property, the 3 rings are forged and each ring is unitary.

In order to guarantee the hardened depth on the raceway, a test was made before the induction hardening.

The slewing ring has been exported to Europe, being used on a ship, as the bottom of cable basket.

The cages of 1st and 2nd row of rollers are made of aluminum alloy. Nylon cages are also available.

The cages of the 3rd row of rollers which is called “spacer” are made of nylon.

During the final assembly and before the packing, the slewing ring is lubricated by Lithium grease.

Application: shipyard cranes, deck cranes, ship loader, ship unloader, deck conveyors, etc