RKS.220841

L shape range RKS.22 series External gear
  • L shape range RKS.22 series External gear
  • L shape range RKS.22 series External gear

RKS.220841-L shape range RKS.22 series External gear

The RKS.22 series is a specialized slewing bearing design featuring an internal gear on the inner ring combined with an outer flange on the outer ring. This configuration is engineered for applications where the drive pinion must be positioned inside the bearing envelope while the outer ring provides a robust mounting interface through an integral flange. This design offers a practical solution for equipment requiring protected gearing and simplified structural attachment.


Application Areas

  • Compact crane turntables and winch drives

  • Aerial work platforms and lifting equipment

  • Solar tracking systems requiring protected gearing

  • Light to medium-duty industrial turntables

  • Packaging and handling machinery



High load-carrying capacity
Resistance to high and low temperatures
Noise-free operation
Strictly controlled tolerances and appropriate internal clearance
Long service life and low maintenance requirements
Prevention of unexpected downtime (avoiding bearing fracture, seizure, and safety incidents caused by such failures, with anti-tilting capability)

Dimension and Parameters

L shape range RKS.22 series External gear
Type :RKS.220841
Brand :LYMC
Main Dimensions
De [mm] :948
Di [mm] :736
Bi [mm] :884
Fixing Holes
Fe [mm] :920
Ne :14
Fi [mm] :805
Ni :20
Gear Teeth
m :8
z :94
D [mm] :752
Load :543
Mass [KGS] :63

Characteristics

  • Bearing type – Single-row ball slewing ring with internal gear on inner ring and outer ring flange.

  • Gear data – Internal spur gear, module 3–8, 20° pressure angle, teeth induction hardened.

  • Flange design – Outer ring equipped with an integral flange, featuring clearance holes on the bolt circle.

  • Raceway form – Symmetrical Gothic-arch profile with 45° nominal contact angle for balanced load handling.

  • Heat treatment – Raceways induction hardened to 58–62 HRC, case depth 2.0–3.0 mm.

  • Sealing – Fitted with double-lip NBR seals on both sides for contaminant exclusion.


Features

  • Simplifies assembly in confined spaces – The outer flange allows direct mounting to machine frames without requiring access to the bearing's inner side.

  • Protects the gear train – Internal gear placement shields teeth from external impact, reducing damage risk during operation.

  • Allows hollow-shaft routing – The open inner ring accommodates cables, shafts, or fluid lines through the center.

  • Reduces exposed pinch points – Internal gear eliminates external meshing hazards, improving operator safety.

  • Enables compact drive layouts – The pinion can be positioned inside the ring, saving external space.

  • Improves sealing reliability – The flange-mounted outer ring provides a stable sealing surface, minimizing leakage paths.


Further Reading