Slewing Ring Bearing 1080mm External Gear Ring for Wheeled Excavator Swing Circle Assembly

1080 mm Slewing Ring for 15 Ton Wheeled Excavators

Wheeled excavators put a different pattern of load into the swing circle than crawler machines. The ring sees less shock from track impact but far more low amplitude vibration from road travel, and the upper structure rocks on the ring while the machine moves between sites.

This ring is built for that duty: 1080 mm outside, 880 mm inside and 98 mm high, with 84 external gear teeth at module 10 and a sealed single row ball raceway, pre-greased at assembly.

Talk to our engineer on WhatsApp: +86 180 2625 4557 — send your machine model and serial number, and we confirm the slewing ring tooth count the same working day.

Specification

Why Road Travel Changes the Spec

• Sealed raceway. Road dust and grit reach the ball path when the machine is travelling, not just when it is digging.
• Fatigue rated bolt circle. 36 holes of 20 mm are positioned to spread travel vibration across the mounting face.
• Grease retention. A labyrinth lip holds grease in place during vibration instead of letting it migrate to one side.
• Gear flank finish. Ground flanks reduce the whine that appears on wheeled machines at travel speed.

Fitment Notes

Suits 15 ton class wheeled excavators with a 1080 mm swing circle and 84 tooth gear. On wheeled machines, always check the swing brake and the pinion wear at the same time as the ring: a dragging brake overheats the grease and is often the real reason a ring fails early.

Packing and Delivery

Each ring is cushioned with rubber strips inside a plywood case with VCI film, 178 kg gross. Stock ships in eight working days. We can supply the matching pinion and swing brake discs in the same shipment to complete the repair.

Workshop and Production Capability

Every ring is machined, gear cut, induction hardened and ground in our Guangzhou workshop, then assembled, greased and preload checked on a three point bench before packing. The photos below show the production floor and inspection area that support this series.