39 Inch Four Point Contact Ball Slewing Ring Bearing With Outside Gear 996x1240x90mm Heavy Duty Rotary Bearing For Large Machinery Crane Platform And Industrial Equipment Long Lasting Load Bearing Solution For Heavy Lifting And Turntable Applications

39 Inch Four-Point Slewing Ring Bearing with Outside Gear
✔️ Outside gear, 996x1240x90 mm, four-point slewing bearing, single unit

This is a heavy-duty four-point contact ball slewing ring bearing with outside gear, built to rotate large, load-heavy platforms. It's commonly used on cranes, wind turbine bases, and other outdoor industrial machinery where precise, slow rotation is essential.

✅ Outside diameter: 1300 mm (51.18 in)
✅ Inner diameter: 996 mm (39.24 in)
✅ Width: 90 mm (3.54 in)
✅ Gear outer diameter: 1194 mm (46.97 in)
✅ Gear bore diameter: 1046 mm (41.18 in)
✅ Bolt circle diameter: 1121 mm (44.15 in); bolt holes: 4; hole size: 80 mm

💡 What is a heavy-load slewing ring bearing with outside gear used for in industrial setups? This handy part helps rotate large platforms smoothly and reliably.

• Handy for rotating cranes, wind turbine platforms, and other large bases
• Key specs to compare include outer diameter, inner bore, width, and gear compatibility
• Expect long life with proper lubrication, seals, and maintenance
• Choose a model with suitable load ratings and mounting options

Four-Point Contact Ball Slewing Bearing with Outside Gear

A slewing bearing ring is a rotational rolling-element bearing that typically supports a heavy but slow-turning or slow-oscillating load, often a horizontal platform such as a conventional crane, or the wind-facing platform of a horizontal-axis windmill. (To 'slew' means to turn without change of place.)

Item	Outside Dimensions(mm)				Shoulder Dimensions(mm)					Physical Dimensions(mm)					Gear Parameter					Gear Peripheral force
Dp	De	D	d	T	D0	d0	n	C	M	n1	d1	D1	B	S	b	m	z	x	ha	Normalizing (KN)	Slack Quench (KN)
VXB11351120001	1300	1240	996	90	1194	1046	28	24	22	4	1121	1118	80	10	70	10	129	-0.5	1