SI14 Spherical Plain Bearings

SI14 Spherical Plain Bearing | SI14T / SI14K Stainless And Steel Types

The SI14 spherical plain bearing is a heavy-duty precision rod end joint bearing for medium and heavy industrial automation systems. It supports flexible multi-directional oscillation and tilting movement with reliable self-aligning ability and low-friction operation. Offered in SI14T and SI14K models with bearing steel and stainless steel materials, this bearing provides stable, cost-effective motion solutions for medium to heavy-load mechanical equipment.

SI14T vs SI14K | Model Differences

SI14T (Teflon Lined Type): Features built-in PTFE lining with excellent self-lubricating performance and ultra-low friction. It supports dry running without regular grease maintenance, ideal for clean, dry working environments and maintenance-free precision machinery applications.

SI14K (Open Lubrication Type): Adopts open groove structure for easy grease refilling and fast heat dissipation. With sufficient lubrication, it delivers stable wear resistance and higher load capacity, suitable for long-term continuous operation and medium-heavy duty industrial scenarios.

Material Introduction

Bearing Steel: Made of high-carbon chromium bearing steel with strict heat treatment. It provides high surface hardness, strong wear resistance and stable structural rigidity, ensuring long service life for conventional indoor industrial equipment.

Stainless Steel: Premium stainless steel features excellent rustproof, waterproof and anti-corrosion performance. It works stably in humid, dusty and corrosive environments, perfect for outdoor machinery, medical devices, food-grade equipment and precision electronic systems.

Product Features

Standard heavy-duty structure for easy installation and replacement. Excellent self-aligning capability to offset mounting errors. Smooth low-friction multi-angle swing movement. Dual structure and material options adapt to diverse working conditions. High precision and stable long-term operation.

Application Scenarios

SI14 spherical plain bearings are widely used in industrial automation machinery, robotic arms, textile equipment, hydraulic devices, medical instruments and medium-heavy load transmission mechanisms. SI14T fits clean dry maintenance-free scenarios; SI14K suits conventional lubricated environments, and stainless steel versions are ideal for humid and corrosive working conditions.