115 Inch Four Point Contact Ball Slewing Ring Bearing 2922 By 3376 By 174 Millimeters No Gear Heavy Duty Rotating Platform Bearing For Industrial Equipment And Heavy Machinery

115-Inch Four-Point Contact Slewing Ring Bearing, No Gear
✔️ 2922 mm bore, 3376 mm OD, 174 mm width, no gear slewing bearing

This is a 115-inch slewing ring bearing with four-point contact and no internal gear designed to support heavy, slow-turning platforms. It’s commonly used on large cranes, wind turbine bases, and other heavy-load turntables where precise rotation and enduring stiffness are essential.

✅ Inside diameter: 2922 mm (115.0 in)
✅ Outside diameter: 3376 mm (133.0 in)
✅ Width/height: 174 mm (6.85 in)
✅ Four-point contact ball slewing bearing with no gear
✅ Ideal for heavy, slow-rotation platforms like cranes and wind turbines

💡 What is a slewing ring bearing and why is the four-point contact design handy for heavy machinery? A slewing ring bearing provides the rotating support for large machinery platforms, letting them turn smoothly under heavy loads. The four-point contact design spreads loads across two ball rows, boosting stiffness and load capacity for radial, axial, and moment loads.
- Handles mixed loads in a single compact unit
- Maintains preload and rigidity under varying operating conditions
- No-gear variant reduces weight and simplifies maintenance
- Common in cranes, wind turbines, and large turntables