21 Inch Four Point Contact Ball Slewing Ring Bearing With Outside Gear 528x774.4x80 mm Heavy Duty Rotary Bearing Designed For Large Machinery Uses High Load Capacity And Slow Rotation For Smooth Operation And Long Service Life

21 Inch Four-Point Slewing Ring Bearing with Outside Gear
✔️ 21 inch slewing ring with outside gear, single bearing pack

This 21 inch ball slewing ring bearing with outside gear is designed to support heavy, slow-turning platforms like cranes and wind turbines. It delivers reliable rotation under demanding loads in industrial settings.

Dimension	Millimètres	Inches
Inner diameter	528	20.79
Outer diameter	774.4	30.51
Width	80	3.15

✅ Inner diameter: 528 mm (20.79 in)
✅ Outer diameter: 774.4 mm (30.51 in)
✅ Width : 80 mm (3,15 in)
✅ Outside gear included for drive integration

💡 What is a slewing ring bearing used for in heavy machinery?

This handy component supports rotation of large platforms under heavy loads. - Slewing rings handle radial and axial loads in one compact unit - Outside gear provides straightforward drive compatibility with gears or pinions - Sealed ball design reduces maintenance and extends service life