Bearing Machinery Technology Co., Ltd

NSK 35bd5020 Bearing

 

Crane And Excavator Slewing Ring Bearing

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.

Light Bearings Slewing Ring Supply with 12 Months Warranty Period
Light Bearings Slewing Ring Supply with 12 Months Warranty Period
12
1 pcs
Light Type Slewing Ring for Excavator Turntable Wd-060.20.0544
Light Type Slewing Ring for Excavator Turntable Wd-060.20.0544
380
480
High Quality Light Slewing Bearing Ring Mobile Tower Crane
High Quality Light Slewing Bearing Ring Mobile Tower Crane
Cast Bronze C93200 &
717905066580
Professional Main Gear Manufacturer Slewing Ring Bearing Wd-061.20.0644
Professional Main Gear Manufacturer Slewing Ring Bearing Wd-061.20.0644
Uncoated
Single Joint
Customized Slewing Ring for Samsung Excavator in China Qnd. 900.25-1
Customized Slewing Ring for Samsung Excavator in China Qnd. 900.25-1
1.5600 in
Heavy Duty
Good Light Series Slewing Bearing Rings for Excavators
Good Light Series Slewing Bearing Rings for Excavators
72200 lbf
Needle Rollers
Light Type Slewing Bearing Slewing Ring Wd-231.20.0544
Light Type Slewing Bearing Slewing Ring Wd-231.20.0544
DIN 625-1
Uncoated
Slewing Bearing Leveling Machine Outer Gear with Internal Flange
Slewing Bearing Leveling Machine Outer Gear with Internal Flange
In Stock
Two Rubber Seals
Ungeared Light-Series Slewing Ring Bearing (RKS. 230541)
Ungeared Light-Series Slewing Ring Bearing (RKS. 230541)
Open Type
24140cc/c3w33-qbl
Light Type Slewing Bearing Wd-060.20.1094
Light Type Slewing Bearing Wd-060.20.1094
12100 lbf
Lubrication Groove &
Light Slewing Rings Bearing with No Gear on Sale
Light Slewing Rings Bearing with No Gear on Sale
Fiberglass Reinforce
21 mm
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Slew Drive Motor
Thin Section Open Bearing
Swing Ring For Daewoo Excavator
Psl Bearing
Imo Slew Bearing
Small Slewing Bearing
Rollix Slewing Ring
Four-Point Contactbearing
Slewing Ring
Double Row Slewing Bearing
Solar Tracker Bearing
Three-Row Roller Slewing Ring Bearing
Madill Slewing Bearing
Hitac Slewing Bearing
Excavator Slewing Ring
Crane And Excavator Slewing Ring Bearing
Geared Slewing Ring
Kmi Slew Drives
Other Specific Model Slewing Bearing
Kinematics Slewing Drive
John Deere Slewing Bearing
Double Row Ball Slewing Ring Bearing