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.
How to Check Slewing Bearing Wear: Measuring Axial and Radial Clearance in Service
/in Bearing Knowledge, Slewing Bearing Knowledge /by LDB BearingA slewing bearing rarely fails without warning. Long before it seizes or breaks, it usually develops extra movement between its rings. Measuring that movement is one of the simplest and most useful checks a maintenance team can make. This guide explains what clearance is, which warning signs should prompt a measurement, how to take readings […]
How to Identify and Measure a Slewing Bearing for Replacement When You Have No Drawing or Nameplate
/in Bearing Knowledge, Slewing Bearing Knowledge /by LDB BearingWhen a machine stops because its slewing bearing has failed, the first obstacle is often not the repair itself but the missing paperwork. The nameplate has worn away, the original drawing was never handed over, or the machine maker no longer supports the model. The good news is that a slewing bearing can be fully […]
Foundation Flatness and Structural Stiffness: Preventing Premature Binding in Large-Diameter Slewing Bearings
/in Bearing Knowledge, Slewing Bearing Knowledge /by LDB BearingLarge-diameter slewing bearings are precision-engineered mechanical assemblies designed to transmit heavy axial, radial, and tilting moment loads. However, unlike small deep-groove ball bearings that possess rigid inner and outer rings, slewing rings are inherently flexible thin-section structures. Their operational performance depends heavily on the geometry and rigidity of the supporting mounting foundation. In field applications, […]