9E SeriesExternal Gear

9E Series External Gear

9E Series External Gear

This double row ball slewing bearing with external gear consists of two rows of steel balls for eight-point contact. It withstands composite axial, radial forces and tilting moments. Outer ring external gear enables direct power transmission.Thanks to compact construction and outstanding carrying performance, it serves medium-heavy rotating machinery including lifting equipment and engineering turntables. Standard specifications in stock; OEM customization is supported.


Design and Construction:

Eight-point contact between balls and raceways for enhanced stability

90° load angles on both upper and lower raceways, optimized for axial load and tilting moment capacity 

External gear teeth located on the outer ring for efficient power transmission

Through-hardened raceways with specialized heat treatment for extended service life

Integrated sealing systems to protect rolling elements from contaminants and retain lubrication
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  • 9E Series External Gear
  • 9E Series External Gear
InquiryDesignationBrandDrawing No.WeightBoundary DimensionsAbutment DimensionsMounting Holes N1Mounting Holes N2Other SpecificationsForceLubrication Spots
G[kg]d[mm]D[mm]T[mm]J1[mm]J2[mm]N1N2Number N1Hole TypeNumber N2Hole TypeD1d2H1H2Bm(DP)ZXFDovFTmaxSizeLocation

External gear double row ball slewing bearing adopts dual-row steel ball layout with eight-point contact structure. It efficiently bears combined axial loads, radial loads and overturning moments.External teeth are machined on the outer ring to realize direct rotary drive. 

Equipped with integrated mounting holes, grease fittings and reliable sealing assembly for convenient installation, lubrication and maintenance.This slewing ring features high load capacity, stable rotation and excellent rigidity. 

Widely applied for truck cranes, aerial work platforms, turntable machinery and medium & heavy-duty construction equipment. Custom dimensions, gear parameters and surface treatments are available upon request.

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