Four-Point Contact Slewing Ring Bearing With Inside Gear 21 Inch Ball Slewing Bearing 528x732x80mm For Heavy Load Rotary Motion In Industrial Machinery High Precision Durable Construction Smooth Rotation Easy Mounting
✔️ 528x732x80 mm inside gear, 21 inch dia, single bearing
This large-diameter four-point contact ball slewing ring bearing with inside gear is built to support heavy rotating platforms. It's commonly used on cranes, wind turbines, and large construction machinery where slow, steady rotation and high load capacity are key.
✅ Inside gear configuration supports direct drive and precise meshing
✅ Four-point contact design provides stable radial and axial load handling
✅ Outer diameter 732 mm (28.82 in), inner diameter 528 mm (20.79 in), width 80 mm (3.15 in)
✅ Ideal for heavy machinery requiring slow rotation and high load capacity
💡 What is a slewing ring bearing used for in heavy machinery with inside gear?
In general, a slewing ring bearing is a large rotating bearing that supports heavy platforms while allowing slow, controlled turning. Handy for machinery where rotation of a heavy table or platform is required.
- Handy for cranes, wind turbines, and other large rotating setups - Handles both radial and axial loads with four-point contact - Enables gear engagement with an inside gear for direct drive - Regular lubrication extends service life and performance