TFI Bearing Co.,Ltd

Crane Slew Ring

Large diameter slewing ring bearings are critical components in many applications. Military applications include tank turrets, missile launchers, communication antennae, precision radar antennas, and gun mounts. Common commercial applications include aerial lifts, hydraulic excavators, boom cranes, and tunnel boring machinery. Large bearings for these applications are not only expensive to buy, but typically require lead times ranging from two months to a year or longer.

Since the bearing is so critical, careful maintenance is necessary. More than 96% of slewing ring bearing failures are due to surface-originated lubrication problems, contamination, overloading, and improper installation and mounting fits. These surface failures occur much earlier than classical fatigue failures and are less predictable.

Slewing ring bearing life is calculated assuming infinitely rigid and flat mounting structures. A structure that distorts significantly under load, and/or one that is out-of-flat, applies loads to localized areas rather than evenly distributing them. This causes permanent deformation in the local area, leading to early failure.

Single Row Four Piont Contact Ball Slewing Bearing
1 pcs
Negotiable
Large Diameter Bearings Slewing Rings for Construction Machinery
1 pcs
Negotiable
Semi-Trailer Spare Parts Slewing Rings Bearings Turntable
1 pcs
Negotiable
Manufacturers Bearing Outer Ring for Slewing Ring Bearing
1 pcs
Negotiable
Outer Slewing Bearings Ring for Wind Turbine Slewing Rings
1 pcs
Negotiable
Low Price Tower Crane Construction Slewing Ring on Sale
1 pcs
Negotiable
Slewing Ring for Stackers Bearings for Crane Wind Turbine System
1 pcs
Negotiable
Wanda Slewing Gear Internal Gear Ring for Aerial Ladder Platform
1 pcs
Negotiable
Single Row Four Point Contact Ball Slewing Bearing -- 010.25.1356
010.25.1356
1 pcs
Construction Machines Turntable Bearings Slewing Ring Bearings
1 pcs
Negotiable
Single- Row Slewing Bearing Rings Production on Sale
1 pcs
Negotiable
Large Rotary Table Slewing Bearing Ring for Excavator
1 pcs
Negotiable
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Triple-Row Slewing
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Double Row Different Ball Slewing Bearing
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Slewing Ring Drive
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Crane Slew Ring
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