FEATURED PRODUCTS
Check out featured slewing bearings, slew drives, and spur gear drives in various designs for heavy machinery, such as cranes, excavators, earthmovers, solar trackers,machining and automation industries.
Four Point Contact Ball Slewing Bearing
Four-point contact ball slewing bearing is mainly composed of inner ring, outer ring, single-row steel balls, cage (or spacer), sealing device and other parts.
LDB SE Series Slew Drive
The SE series slewing drive is a type of worm gear driven slewing drive that features a compact design, high torque capacity, and precise rotation control.
SG-I Spur Gear Slewing Drive
SG-I series Spur Gear Slewing Drive is composed of a rotary bearing, gear, bearing seat, adapter flange, support bearing, seals, and other components.
Cross Roller Slew Bearing
Cross-roller slew rings are roller slew bearings with high rotational accuracy that are capable of receiving a load in any direction.
WE series Slewing Drive
WE series Slewing Drive is composed of a slewing bearing, worm, bearing housing, adapter flange, support bearing, sealings, and others.
SG-M Spur Gear Slew Drive
A SG-M spur gear slewing drive is a type of mechanical component that provides high load-carrying capacity and precise movement for various applications.
LDB PRODUCTS
LDB Bearing manufactures standard and customized slewing bearings, slew drives, and spur gear drives in various designs for heavy machinery, such as cranes, excavators, earthmovers, solar trackers,machining and automation industries.
Slewing Bearings
Slewing bearings are designed for large load-bearing capability and can manage a full range of heavy-duty mechanical equipment.
Slew Drives
Slew drives are an update to worm drive mechanisms and are made for applications that need rotational torque and load holding in the same gearbox.
Spur Gear Slew Drive
Spur gear slew drive is also called gear slewing reducer which is generally composed of pinion gears, turntable bearings, shells, motors, or motors.





















Three-Row Roller Slewing Bearings: Design and Static Load Selection
/in Bearing Knowledge, Slewing Bearing Knowledge /by LDB BearingWhat Is a Three-Row Roller Slewing Bearing? A three-row roller slewing bearing is a large-diameter rolling-element bearing that uses three independent rows of cylindrical rollers to support loads. Unlike single-row ball bearings or crossed roller designs, the three-row roller configuration dedicates separate roller rows to different load directions. The upper and lower rows of rollers […]
Slewing Bearings for Industrial Robots: Precision and Rigidity Requirements
/in Bearing Knowledge, Slewing Bearing Knowledge /by LDB BearingWhat Is a Slewing Bearing? A slewing bearing—also known as a slewing ring or turntable bearing—is a large-diameter rolling-element bearing designed to support heavy loads while enabling rotational movement between two structures. Unlike standard bearings that handle primarily radial or axial loads, slewing bearings are engineered to simultaneously manage axial loads, radial loads, and tilting […]
How Slewing Bearings Perform Under Eccentric Loads in Heavy Machinery
/in Bearing Knowledge, Slewing Bearing Knowledge /by LDB BearingWhat Is a Slewing Bearing? A slewing bearing—also known as a slewing ring or turntable bearing—is a large-diameter rolling-element bearing that supports heavy loads while enabling rotational movement between two structures. Unlike standard bearings that handle primarily radial or axial loads, slewing bearings are engineered to simultaneously manage axial loads (vertical forces), radial loads (horizontal […]