RD800 Crossroller bearing

RD800 Cross roller bearing

RD800 Cross roller bearing

The RD800 series is a single-row crossed roller slewing bearing featuring an external gear on the outer ring. This series is specifically designed for applications requiring high rotational accuracy, exceptional rigidity, and robust load capacity in demanding precision environments. The RD800 series is recognized for its optimized roller geometry and superior material quality, making it a preferred choice for heavy-duty precision applications.


Application Areas：

Robotics and automation equipment

Precision rotary tables and indexing systems

Radar and antenna positioning systems

Medical imaging and radiotherapy equipment

High-accuracy solar tracking systems

Machine tools and coordinate measuring equipment
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  • RD800 Cross roller bearing
  • RD800 Cross roller bearing
InquiryTypeBrandWeightOutside DiaInner DiaTotal HeightExternal Bolt Circle DiaInternal Bolt Circle DiaNumber Of Bolt Holes Per Hole CircleBolt Hole DiaMNumber Of Grease NipplesDiameterDiameterRing HeightRing HeightDistance At Bottom Outer Ring/Inner RingDistance At Bottom Outer Ring/Inner RingGear P.C.D.ModuleNumber Of TeethX.MK.MTooth WidthPermissible Tangentialforces, NormalPermissible tangentialforces, Maximum
[KG]Da [mm]Di [mm]H [mm]La [mm]Li [mm]n B [mm][mm]n₁ O[mm]U[mm]H₁[mm]H₂[mm]Hu[mm]Ho[mm]d[mm]M[mm]Z[mm][mm]b[mm][kN][kN]

The RD800 series bearing consists of an inner ring, an outer ring with integral external teeth, and a single row of cylindrical rollers arranged in a crossed pattern between the raceways. The rollers are oriented with their axes alternating at 90-degree angles, enabling the bearing to efficiently handle axial loads (in both directions), radial loads, and tilting moments simultaneously. The crossed roller geometry provides line contact with the raceways, delivering greater load-carrying capacity and enhanced rigidity compared to ball bearings of similar dimensions.

The external gear is precision-ground on the outer ring, ensuring accurate engagement with the drive pinion and minimizing backlash. Both rings are manufactured from high-quality bearing steel, heat-treated for optimal hardness and wear resistance, and provided with mounting holes for straightforward bolted installation.


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