Construction machinery parts SD32 blade lifting cylinder joint bearing 07137-05008

Engineering Machinery Parts SD32 Blade Lifting Cylinder Spherical Joint Bearing 07137-05008

Spherical joint bearings are spherical sliding bearings specifically designed for hydraulic cylinders. Their core function is to support the relative movement between the piston rod and the cylinder body and to compensate for installation errors.

I. Structure and Principle

Composed of an outer ring (inner spherical surface) and an inner ring (outer spherical surface), achieving multi-directional movement through spherical sliding contact. The outer spherical surface of the inner ring is often inlaid with self-lubricating material (such as PTFE fabric) to reduce reliance on external lubrication. Some models are designed with lubrication holes or grooves for easy maintenance.

II. Core Features

Multi-directional load bearing: Can withstand radial, axial, and combined loads, adapting to the complex stress environment of hydraulic cylinders.

Self-aligning capability: Allows for a large concentricity deviation between the shaft and the housing bore (tilter angle typically 3°–15°), preventing jamming due to installation errors.

Wear and impact resistant: The surface is treated with phosphate and spraying to enhance corrosion resistance and impact resistance, making it suitable for heavy-duty applications.

Low-speed adaptability: Designed for low-speed oscillating or rotating motion, commonly found in construction machinery, automotive shock absorbers, and other applications.