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.

Excavator Slewing Bearing Rings for All Excavator Parts
1 pcs
Negotiable
Material Trailer Turntable Ball Bearing Slewing Rings
1 pcs
Negotiable
Slewing Bearings Ring for Construction Machinery Professional Chinese
1 pcs
Negotiable
Forged Rings for Crane Slewing Bearings China Trailer Turntable
INA
1 pcs
Full Trailers Parts Ball Bearing Slewing Rings Turntable
1 pcs
Negotiable
Single Row Four Point Contact Ball Slewing Ring Bearings
1 pcs
Negotiable
Tower Crane Slewing Ring Bearings for Slewing Mechanism
1 pcs
Negotiable
Cheap Tower Crane Slewing Ring Bearings China Production
INA
1 pcs
Large Diameter Bearing, Slewing Bearing or Construction Machinery
1 pcs
Negotiable
Rothe Erde Ball Slewing Ring Bearings for Sale
1 pcs
Negotiable
Crane Excavator Slewing Rings Crane Slewing Bearing S
1 pcs
Negotiable
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