JCB Swing Reduction Roller Bearing 120x215x58mm - 05/903872
High-quality roller bearing with high load capacity, designed for swing reduction mechanisms in JCB machinery. It is a critical component supporting the main shaft of the swing gearbox, responsible for the smooth and stable transmission of massive radial forces generated during boom operation. Thanks to precision engineering from hardened bearing steel, this component features a low friction coefficient and exceptional resistance to material fatigue.
Technical Specification:
- Inner Diameter: 120 mm.
- Outer Diameter: 215 mm.
- Width (Height): 58 mm.
- Type: Roller bearing.
- Application: Gearbox / Swing Reduction.
Compatibility:
| Machine Type | Models and Variants |
|---|
| Tracked Excavators |
JCB 205, 215, 225, 245, JS 160, 180, 190, 200, 205, 210, 220, 235, JZ 235, JZ 255, 205NXT, 205L NXT D (2025–2026) |
| Wheeled Excavators |
JS 20, JS 160, JS 175, JS 200 |
Workshop Technical Advice: The swing reduction bearing operates in an oil bath, meaning its lifespan is directly dependent on the cleanliness of the lubrication. When replacing the bearing, it is absolutely essential to inspect the gear oil for the presence of metal shavings. Their presence may indicate wear on the annulus gear or the planetary gears (satellites). During installation, ensure that the housing seat is perfectly clean and the bearing is correctly seated to avoid misalignment, which is the most common cause of premature failure in new components.
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