The internal gear with outer flange slewing bearing is a precision rotational component designed for equipment where the drive arrangement must be integrated within the bearing envelope while maintaining a stable, flange-based connection to the supporting structure. This configuration positions the gear teeth on the inner ring and incorporates a mounting flange on the outer ring, offering a compact and well-protected drive solution for space-sensitive applications.
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
Equipment requiring internal drive arrangement and flange mounting




| Inquiry | Type | Brand | Drawing No. | Dimensions And Weight | Mounting Holes | Gearing And Tooth Forces | Load Ratings | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Outside Dia Outer Ring | Inside Diameter,Inner ring | Inside Dia Outer Ring | Outside Diameter Inner Ring | Diameter Inner Ring | Weight | Pitch Arde Diameter Outer Ring | Number Of Holes Outer Ring | Pitch Arde Diameter Inner Ring | Number Of Holes Inner Ring | Pitch Arde Diameter | Module | Number Of Teeth | Permissible Tooth Force | Maximum Permissible Tooth Force | Static Dynamic | |||||||
| Da [mm] | diz [mm] | Diz [mm] | da [mm] | b [mm] | G [kg] | La [mm] | na | Li [mm] | ni | do [mm] | M | Z | fz norm [kN] | fzmax [kN] | Co rad [kN] | Co ax [kN] | Crad [kN] | Cax [kN] | ||||
This bearing series consists of an outer ring with an integral flange, an inner ring with internal gear teeth, and a single row of steel balls arranged between precision-ground raceways. The four-point contact ball geometry enables the bearing to support axial loads in both directions, radial loads, and tilting moments simultaneously within a single, compact row of rolling elements.
The outer flange provides a broad, flat mounting surface that facilitates direct bolted attachment to the machine structure, eliminating the need for additional adaptor plates or complex mounting fixtures. The inner ring features internal gear teeth machined directly onto its inner circumference, allowing the drive pinion to be positioned within the bearing envelope. This internal gear arrangement not only protects the gear teeth from external contaminants but also enables a more streamlined overall machine design by reducing the external projection of drive components.


