[1] double-row_angular_contact_ball_bearings
[2] 常用轴承有哪几种-易车百科
The B71919, B71920, B71921, B71922, B71924, B71926, B71928, and B71909 angular contact ball bearings are engineered for high-speed, high-accuracy applications requiring rigid axial and radial load support. These bearings feature a 15° or 25° contact angle for optimal performance in combined load conditions.
| Model | Inner Diameter (mm) | Outer Diameter (mm) | Width (mm) | Dynamic Load (kN) | Static Load (kN) | Max Speed (rpm) |
|---|---|---|---|---|---|---|
| B71919 | 95 | 130 | 18 | 28.5 | 19.2 | 8,000 |
| B71920 | 100 | 140 | 20 | 32.1 | 22.4 | 7,500 |
A German automotive parts manufacturer replaced traditional bearings with B71926 bearings in their spindle units, achieving 22% higher RPM capacity and reducing thermal expansion issues during 24/7 production cycles.
B71924 bearings were installed in a 3.2MW offshore wind turbine system, demonstrating 98.7% reliability over 18 months in saltwater spray conditions with -30°C to 80°C operational range.
Challenge: Vibration exceeding 4µm in satellite antenna positioning systems.
Solution: Implemented B71928 bearings with customized preload settings.
Result: Vibration reduced to 1.2µm, meeting ISO 1940-1 G0.4 balance standards.
Challenge: Frequent bearing seizures in MRI-compatible surgical robots.
Solution: Upgraded to B71909 ceramic hybrid bearings with non-magnetic cages.
Result: Zero maintenance interventions over 2,100 operational hours.
Our bearing engineers provide:
Contact Our Engineering Team:
Email: info@vivalr.com
Phone: (86) 15866781826
Chinese 
English 
Portuguese 
Spanish