21304Spherical Roller Bearings
| 21304Spherical Roller Bearings | |||
|---|---|---|---|
| Part Number | 21304 | Weight(Kg) | 0.175 |
| d | 20 | Dynamic Load Co(N) | 30800 |
| D1 | 52 | Static Load Cor(N) | 31200 |
| B | 15 | Grease Speed | 6000 |
| R | 1.1 | Oil Speed | 7500 |
21304 Spherical Roller Bearing | High Load Self-Aligning Bearing
The 21304 spherical roller bearing is a high-performance self-aligning rolling bearing optimized for heavy radial loads and minor axial loads. Featuring excellent self-aligning capability, low noise operation and strong anti-vibration performance, it compensates for shaft misalignment and deflection effectively. Available in GCr15 bearing steel and stainless steel, the 21304 bearing delivers stable and durable performance in standard, humid and mildly corrosive industrial environments.
Material Introduction
Bearing Steel (GCr15): GCr15 high-carbon chromium bearing steel is the standard material for 21304 bearings. After professional heat treatment, it provides high hardness, excellent wear resistance and outstanding fatigue resistance. It maintains stable rotational precision under continuous heavy-load operation, offering reliable and cost-effective performance for general industrial machinery.
Stainless Steel: Stainless steel 21304 bearings feature superior rust-proof, anti-oxidation and weak corrosion resistance. They effectively resist moisture and minor industrial contamination, preventing premature wear and precision loss, perfectly suitable for damp, sanitary and clean working scenarios.
Product Features
Excellent self-aligning performance compensates for shaft deviation. Strong radial load capacity with auxiliary axial load resistance. Low friction, stable rotation and outstanding vibration resistance. Dual material grades adapt to conventional and anti-corrosion environments. Long service life and wide mechanical equipment compatibility.
Application Scenarios
21304 spherical roller bearings are widely applied in industrial fans, conveyors, mining equipment, agricultural machinery, textile machinery and general heavy-duty transmission equipment. Standard GCr15 models suit conventional industrial machinery, while stainless steel versions are ideal for food machinery, medical equipment and high-humidity working environments.
