SA20 Spherical Plain Bearings
| SA20T/K Spherical Plain Bearings | |||
|---|---|---|---|
| Part Number | SA20T/K | h1 | 78 |
| d | 20 | L | 103 |
| B | 25 | R1s | 0.3 |
| dk | 34.925 | a°≈ | 14 |
| C1 | 18 | Dynamic Load Co(N | 42500 |
| d2 | 50 | Static Load Cor(N) | 57000 |
| D | M20*1.5 | Weight(Kg) | 0.38 |
SA20 Spherical Plain Bearing | SA20T / SA20K Steel And Stainless Steel
The SA20 spherical plain bearing is a heavy-duty female thread rod end bearing for medium and heavy industrial machinery and automation systems. It supports flexible multi-directional oscillation and tilting movement with reliable self-aligning performance to compensate for mounting errors. Available in SA20T and SA20K models with bearing steel and stainless steel options, this bearing provides low-friction, stable and cost-effective motion solutions for heavy-load industrial equipment.
SA20T vs SA20K | Model Differences
SA20T (Teflon Lined Type): Built-in PTFE liner offers excellent self-lubricating performance and ultra-low friction. It allows dry operation without regular grease maintenance, ideal for clean, dry working environments and maintenance-free precision machinery applications.
SA20K (Open Lubrication Type): Standard open groove structure enables easy grease refilling and efficient heat dissipation. With stable wear resistance and consistent heavy-load performance after lubrication, it suits long-term continuous operation and general heavy-duty industrial scenarios.
Material Introduction
Bearing Steel: Made of high-carbon chromium bearing steel with professional heat treatment. It features high surface hardness, outstanding wear resistance and stable structural rigidity, ensuring long service life for conventional indoor industrial equipment.
Stainless Steel: Premium stainless steel delivers superior rust-proof, waterproof and anti-corrosion performance. It operates stably in humid, dusty and corrosive environments, perfect for outdoor machinery, medical devices, food-grade equipment and precision electronic systems.
Product Features
Robust heavy-duty female thread structure for easy installation and replacement. Excellent self-aligning capability compensates for mounting deviation. 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
SA20 spherical plain bearings are widely applied in heavy-duty automation machinery, industrial robotic arms, hydraulic systems, large textile machinery and heavy-load transmission mechanisms. SA20T fits clean, dry maintenance-free scenarios; SA20K suits standard lubricated industrial environments, while stainless steel versions work reliably in humid and corrosive working conditions.
