Slew Drive

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The slewing drive is a gearbox that can safely hold radial and axial loads, as well as transmit a torque for rotating. The rotation can be in a single axis, or in multiple axes together. Slewing drives are made by manufacturing gearing, bearings, seals, housing, motor and other auxiliary components and assembling them into a finished gearbox.
Slewing drives function with standard worm technology, in which the worm on the horizontal shaft acts as the driver for the gear. The rotation of the horizontal screw turns a gear about an axis perpendicular to the screw axis. This combination reduces the speed of the driven member and also multiplies its torque; increasing it proportionally as the speed decreases.The speed ratio of shafts depends upon the relation of the number of threads on the worm to the number of teeth in the worm wheel or gear.

As technology has improved, more slewing drives are using hourglass worm technology, in which the worm is shaped to engage more teeth in the gear. This increased tooth engagement results in greater strength, efficiency and durability.

KOYO 6304 Bearing

7/8 Inch M06288

VI117B06 jib crane slewing bearing


011.30.500 Swing Circle Ring slewing ball bearing

Plain Bearings RBC BEARINGS

manned lift use slewing bearing

C0 Double Shielded
50 mm Uncoated

Light-duty LW100 crane Slewing Ring Bearing

1.2500 in 0.7480 in
Set Screw Collar 4410 lbf

slewing bearing for rotation arm

Precision Ball Beari None
8482.10.50.68 No

Turntable Bearing for Crane Attachment

200 Cast Iron
Eccentric Collar 793699305135

Shield Tunneling Machinery Slewing Bearing

KOYO Bearings
0.0 N/A

outside 1430 mm rotate transporter use slewing ring bearing

B04270 3.937 Inch | 100 Mil
Metric 17 Degree

rowing machine parts Slewing bearing

M06110 N/A
Mounted Units & SYSTEM PLAST

Heavy Vehicle Used Turntable Slewing Ring Bearing

0644075079594 0.1
0.0 Complete with Outer

High Standard single-row cross roller slewing bearing

3.29 Inch | 83.566 M 0 Inch | 0 Millimete