R300-9 Slewing Bearing Slew Ring Part NO.81Q8-01020
MUYE R300-9 slewing bearing is a single-row ball slewing ring assembly, specially manufactured as aftermarket replacement part for Hyundai R300-9 large excavator. This slew ring adopts high-strength alloy steel with quenched gear surface, delivering stable rotating performance under heavy loads, widely applied in rotary support system of medium-large construction excavation equipment.
Our factory carries out full-process strict quality control for R300-9 slewing bearings, covering raw material forging, precision CNC machining, gear heat treatment and multi-layer anti-rust surface coating. Compared with generic aftermarket slew rings, R300-9 model features superior wear resistance, low running noise and extended service lifespan. Every finished slewing bearing passes load and fatigue durability tests before shipment to guarantee reliable operation in harsh construction working conditions.
MUYE Machinery supplies full range excavator slewing bearings and supports customized sizes & OEM logo printing. R300-9 slew ring is kept in stock with fast global shipping service. We provide dedicated professional after-sales service for all engineering machinery chassis spare parts to efficiently resolve your equipment replacement demands.
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