Patent ID: 8025116

Claim:
A wheel hub drive with drive motor and drive gear system for industrial trucks, comprising: driving and output axis of the drive gear system, rotation axis of a wheel and driving axis of the drive motor are disposed coaxially; the drive gear system is a single step or multi step planetary stepping gear system or a two or more step planetary coupler mechanism gear system; two horizontally spaced wheel bearings are located inside the drive gear system, wherein a first wheel bearing ( 2 a ) is disposed between a first bearing portion, connected with the wheel hub ( 8 ), and a frame-fixed planet carrier ( 3 , 16 ), and a second wheel bearing ( 2 b ) is disposed between the first bearing portion and a frame-fixed second bearing portion or the frame-fixed planet carrier ( 3 , 16 ), and further characterised in that a two step planetary coupler mechanism gear system is provided, and the first bearing portion is formed by a second planet carrier ( 1 ) of a first step of the planetary coupler mechanism gear system.