Spherical plain bearing

HyjgBearing's spherical plain bearings or bushings are steel-to-steel bearings consisting of a spherically ground inner ring housed in a matching outer ring without any rolling elements. While all plain bearings are precision ground and made from integrally hardened steel, custom orders are available, including special materials, clearances, surface finishes or configurations to suit unique applications.

Design attributes

Rings made from hardened steel help to provide consistent, reliable performance.
Phosphate-treated rings coated with molybdenum disulphide (MoS2) to minimise friction on contact surfaces
Simplified housing and shaft design reduces installation time.

Applications

A-frames, tipping cylinders, front and rear struts and steering cylinders for mining trucks
Equaliser track bars, lifting and tilting cylinders, push shovels, trunnion balls and loosening shovels for bulldozers
Articulated upper and lower steering cylinders and boom and bucket cylinders for wheel loaders
Bucket bar and bucket cylinders for hydraulic excavators
Other applications for space shuttles, heavy movable structures and miscellaneous vehicles

Spherical Plain Bearing

Spherical plain bearings (also known as "spherical plain bearings", "spherical ball bearings" and "ball bushings") have an inner ring with a convex outer ring and a correspondingly spherical but They are designed in such a way that they are particularly suitable for use in the production of bearings with a convex outer ring. Their design makes them particularly suitable for bearing arrangements where the alignment movement between shaft and housing must be adapted, or where oscillating or repeated tilting movements at relatively slow sliding speeds must be permitted.

Joint bearing characteristics

Spherical plain bearings (also called "spherical plain bearings", "spherical ball bearings" and "ball bushings") have an inner ring with a convex outer ring and an outer ring with a corresponding spherical surface but a concave inner ring. The inner ring is concave. Their design makes them particularly suitable for bearing arrangements where the alignment movement between shaft and housing must be adapted, or where oscillating or repeated tilting movements at relatively slow sliding speeds must be permitted.

Steel-to-Steel

Steel-to-steel spherical bushings handle alternating and shock loads in a variety of industrial machinery and construction equipment.
High-carbon chromium bearing steel for inner and outer rings.
Phosphate-treated sliding surfaces are dry-coated with molybdenum disulfide (MoS2) to provide excellent wear resistance, high load capacity and low-torque operation.
Optional polyurethane seals prevent grease leakage and dirt penetration.

Maintenance-free spherical bushings

These bushings are ideal for applications with fixed directional loads or applications where lubrication is not possible or desired, such as food processing machinery, construction equipment, and applications where oil is not desired or difficult to lubricate.

The durable outer ring has a PTFE lining that is reinforced with a copper alloy mesh on the sliding surface.
The spherical inner ring has a hard chrome plated sliding surface.
Effective wear resistance and low creep deformation ensure long maintenance-free operation.
Optional synthetic resin seals prevent dust penetration.