7305 Angular Contact Ball Bearings
| 7305 Angular Contact Ball Bearings | |||
|---|---|---|---|
| Part Number | 7305 | Weight(Kg) | 0.230 |
| d | 25 | Dynamic Load Co(N) | 25800 |
| D1 | 62 | Static Load Cor(N) | 14800 |
| B | 17 | Grease Speed | 14000 |
| R | 1 | Oil Speed | 18000 |
7305 Angular Contact Ball Bearing | 7305C / 7305AC / 7305B
The 7305 angular contact ball bearing is a single-row heavy-duty precision bearing designed to handle combined radial and axial loads. It features low friction, low noise and stable high-speed operation, widely used in medium to heavy-duty industrial transmission and precision mechanical systems. Available in 7305C, 7305AC and 7305B contact angle types, plus bearing steel and stainless steel material options, this bearing delivers consistent performance for standard, humid and mildly corrosive working conditions.
Difference Between 7305C, 7305AC and 7305B
7305C (15° Contact Angle): Features a 15° contact angle with ultra-low friction and superior high-speed stability. It maintains excellent rotational precision with moderate axial load capacity, ideal for high-speed spindles and precision automation equipment.
7305AC (25° Contact Angle): Adopts a 25° contact angle with balanced radial and axial load resistance. With stable composite load performance and strong versatility, it serves as the universal cost-effective solution for most precision machinery applications.
7305B (40° Contact Angle): Equipped with a 40° large contact angle for enhanced axial load capacity. It reliably withstands heavy axial thrust at low to medium speeds, perfect for machinery with offset loads and heavy axial force.
Material Differences: Bearing Steel vs Stainless Steel
Bearing Steel (GCr15): GCr15 bearing steel is the standard material for 7305 series bearings. Professional heat treatment provides high hardness, outstanding wear resistance and strong fatigue resistance, ensuring stable precision and long service life in conventional dry industrial environments.
Stainless Steel: Stainless steel 7305 bearings offer excellent rust-proof, oxidation and weak corrosion resistance. They effectively resist moisture and minor contamination to prevent precision loss and corrosion failure, suitable for food machinery, medical equipment and high-humidity sanitary scenarios.
Product Features
Supports multi-directional combined radial and axial loads. Three contact angle specifications meet high-speed, universal and heavy axial load demands. Delivers high precision, smooth rotation and quiet operation. Dual material options balance cost performance and anti-corrosion ability. Standard structure enables easy installation and replacement.
Application Scenarios
7305 series angular contact ball bearings are widely applied in precision motors, machine tool spindles, industrial pumps, compressors and heavy-duty automation machinery. Bearing steel models suit conventional indoor industrial equipment; stainless steel versions adapt to damp, sanitary and lightly corrosive environments. 7305C for high-speed precision operation, 7305AC for general universal use, and 7305B for heavy axial load equipment.
