61 Inch Four Point Contact Slewing Ring Bearing With Inside Gear 1554 By 1971 By 109 Millimeter Heavy Duty Ball Bearing For Rotational Load Support On Large Machinery Ideal For Heavy Lifting And Construction Machinery

61-Inch Four-Point Slewing Ring Bearing with Inside Gear
✔️ Heavy-duty 1554x1971x109 mm slewing ring, inside gear, single bearing

This is a heavy-duty slewing ring bearing with inside gear, built to rotate large platforms under heavy, slow-moving loads. It is commonly used on cranes, wind turbines, and other heavy equipment where a platform turns smoothly.

Dimensione	Millimeters	Inches
Inner bore diameter	1554	61.2
Outer diameter	1971	77.6
Width / thickness	109	4.29

✅ Inner bore diameter: 1554 mm (61.2 in)
✅ Outer diameter: 1971 mm (77.6 in)
✅ Width / thickness: 109 mm (4.29 in)
✅ Inside gear configuration for mounting rotation
✅ Best for heavy-load, slow-rotation platforms

💡 What is a slewing bearing used for?

It is a handy rotary support that lets heavy platforms turn smoothly while carrying large loads.

• Supports radial, axial, and moment loads in rotating equipment
• Common in cranes, wind turbines, and industrial turntables
• Helps reduce friction and wear for long life in heavy machinery