SA28 Spherical Plain Bearings
| SA28T/K Spherical Plain Bearings | |||
|---|---|---|---|
| Part Number | SA28T/K | h1 | 103 |
| d | 28 | L | 136 |
| B | 35 | R1s | 0.3 |
| dk | 47.6 | a°≈ | 15 |
| C1 | 24 | Dynamic Load Co(N | 86000 |
| d2 | 66 | Static Load Cor(N) | 107000 |
| D | M27*2 | Weight(Kg) | 0.8 |
SA28 Spherical Plain Bearing | SA28T / SA28K Steel And Stainless Steel
The SA28 spherical plain bearing is a heavy-duty female thread rod end bearing suitable for medium and heavy-load industrial machinery and automation systems. It enables flexible multi-directional oscillation and tilting movement, with reliable self-aligning performance to compensate for mounting deviation. Available in SA28T and SA28K models in bearing steel and stainless steel, it delivers low-friction, stable motion solutions for heavy-duty industrial equipment.
SA28T vs SA28K | Model Differences
SA28T (Teflon Lined Type): Built-in PTFE liner provides excellent self-lubrication and ultra-low friction. It supports dry running operation without regular grease maintenance, making it ideal for clean, dry working environments and maintenance-free precision machinery.
SA28K (Open Lubrication Type): Standard open groove structure allows convenient grease refilling and fast heat dissipation. With reliable wear resistance and stable heavy-load capacity after lubrication, it fits long-term continuous operation and general heavy-duty industrial scenarios.
Material Introduction
Bearing Steel: High-carbon chromium bearing steel with professional heat treatment features high hardness, strong wear resistance and stable structural rigidity, ensuring long service life for conventional indoor industrial equipment.
Stainless Steel: Premium stainless steel boasts outstanding rust-proof, waterproof and anti-corrosion performance. It operates stably in humid, dusty and corrosive conditions, perfect for outdoor machinery, medical devices, food-grade equipment and precision electronics.
Product Features
Robust heavy-duty female thread structure for easy installation and replacement. Excellent self-aligning capability offsets mounting errors. Smooth low-friction multi-angle swing movement. Dual model and material options adapt to diverse working conditions. High precision and stable long-term operational performance.
Application Scenarios
SA28 spherical plain bearings are widely applied in heavy-duty automation machinery, industrial robotic arms, hydraulic systems, large textile machinery and heavy-load transmission mechanisms. SA28T suits clean, dry maintenance-free scenarios; SA28K fits standard lubricated industrial environments, while stainless steel versions work reliably in humid and corrosive working conditions.
