JCB Perforated Dipper Arm Bush 41x44x70mm
Perforated dipper arm bushing, designed for the kinematic systems of JCB mini excavators. This component features a special perforated structure (lubrication pockets) that allows for the storage of grease and its even distribution over the pin surface. As a result, the bushing minimizes friction, reduces the risk of seizing, and significantly extends lubrication intervals, ensuring precise arm operation without play.
Specifications and Technical Features:
- Dimensions: 41 mm (ID) x 44 mm (OD) x 70 mm (length).
- Type: Perforated bushing (with grease pockets).
- Material: steel with high resistance to surface pressure and wear.
- Application: Main dipper arm pivot points and bucket/linkage connections.
Compatibility with JCB Mini Excavators:
| Category | Models and Variants |
|---|
| Mini Excavators |
802, 804X, 805X, 806X |
Technical Advice: When replacing the bushing, it is essential to inspect the condition of the mating pin. If the pin shows visible ridges, pitting, or ovalization, the new bushing will wear prematurely. Installation should be carried out using a press or a suitable driver to avoid skewing or deformation. For perforated bushings, it is recommended to use grease with molybdenum disulfide (MoS2) additives, which fills the perforations and creates a durable protective film, preventing direct metal-to-metal contact under heavy loads.
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