21309Spherical Roller Bearings
| 21309Spherical Roller Bearings | |||
|---|---|---|---|
| Part Number | 21309 | Weight(Kg) | 0.98 |
| d | 45 | Dynamic Load Co(N) | 129000 |
| D1 | 100 | Static Load Cor(N) | 130000 |
| B | 25 | Grease Speed | 3300 |
| R | 1.5 | Oil Speed | 4400 |
21309 Spherical Roller Bearing | High Load Self-Aligning Bearing
The 21309 spherical roller bearing is a heavy-duty self-aligning rolling bearing engineered for high radial loads and moderate axial loads. It delivers excellent self-aligning performance to compensate for shaft misalignment and deflection, featuring low friction, stable rotation and strong anti-vibration ability. Available in GCr15 bearing steel and stainless steel, the 21309 bearing maintains consistent precision and durability in standard, humid and mildly corrosive industrial environments.
Material Introduction
Bearing Steel (GCr15): GCr15 high-carbon chromium bearing steel is the standard material for 21309 bearings. After professional heat treatment, it achieves high hardness, outstanding wear resistance and strong fatigue resistance. It supports long-term stable operation under heavy load conditions, providing high cost performance for industrial heavy machinery.
Stainless Steel: Stainless steel 21309 bearings offer reliable rust-proof, anti-oxidation and weak corrosion resistance. They effectively resist moisture and industrial contaminants, preventing precision loss and premature bearing failure, ideal for damp, sanitary and clean working scenarios.
Product Features
Excellent self-aligning capability compensates for shaft misalignment. High heavy-load radial bearing capacity with stable axial load resistance. Low friction, low noise and strong anti-vibration performance. Dual material grades adapt to conventional and anti-corrosion working environments. Long service life and wide compatibility with industrial equipment.
Application Scenarios
21309 spherical roller bearings are widely applied in mining machinery, industrial fans, conveyor equipment, agricultural machinery, construction machinery and heavy-duty transmission systems. Standard GCr15 models suit conventional heavy industrial equipment, while stainless steel versions are perfect for food machinery, medical devices and high-humidity working environments.
