SI20 Spherical Plain Bearings
| SI20 Spherical Plain Bearings | |||
|---|---|---|---|
| Part Number | SI20T/K | L5 | 10 |
| d | 20 | d4 | 27.5 |
| D | M20*1.5 | d5 | 35 |
| W | 30 | dk | 34.925 |
| B | 25 | L3 | 30 |
| C1 | 18 | a°≈ | 14 |
| h | 77 | Dynamic Load Co(N) | 31500 |
| d2 | 48 | Static Load Cor(N) | 42500 |
| L | 101 | Weight(Kg) | 0.42 |
SI20 Spherical Plain Bearing | SI20T / SI20K Stainless And Steel Types
The SI20 spherical plain bearing is a heavy-duty rod end joint bearing designed for medium and heavy industrial machinery and automation systems. It supports flexible multi-directional oscillation and tilting movement, featuring reliable self-aligning performance and stable low-friction operation. Available in SI20T and SI20K models with bearing steel and stainless steel options, this bearing provides durable, cost-effective motion solutions for heavy-load industrial equipment.
SI20T vs SI20K | Model Differences
SI20T (Teflon Lined Type): Integrated PTFE liner delivers excellent self-lubricating properties and ultra-low friction. It supports dry operation without regular grease maintenance, making it suitable for clean, dry working environments and maintenance-free precision machinery.
SI20K (Open Lubrication Type): Standard open groove structure allows easy grease refilling and efficient heat dissipation. After professional lubrication, it offers outstanding wear resistance and stable heavy-load performance, ideal for long-term continuous operation and general heavy-duty industrial scenarios.
Material Introduction
Bearing Steel: Made of high-carbon chromium bearing steel with precise heat treatment. It boasts 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 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 standard 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
SI20 spherical plain bearings are widely applied in heavy-duty automation machinery, industrial robotic arms, hydraulic systems, large textile machinery and heavy-load transmission mechanisms. SI20T fits clean, dry maintenance-free scenarios; SI20K suits standard lubricated industrial environments, and stainless steel versions are ideal for humid and corrosive working conditions.
