Products · Orbital Motors

BMM Compact Orbit Hydraulic Motor

The smallest envelope in the THOTH orbital family — fits where no other hydraulic motor can, with the highest speed capability in the BM range.

THOTH / ZiHYD · Since 1971  ·  ← Selection guides using BMM

THOTH BMM compact orbit hydraulic motor

BMM is the entry point of the THOTH orbital motor range — a gerotor cycloid motor with a ductile cast iron shell, designed for lighter loads and intermittent operation. The TMM variant uses a geroler gear set for smoother running.

Its defining strength is size: the smallest footprint in the family, with speed capability up to 1,950 r/min — ideal for compact drive modules where a gearbox would add cost and envelope.

Widely applied in agriculture, forestry, plastics machinery, machine tools, and light material handling.

Specifications · BMM

TypeOrbit (cycloid) motor — Gerotor (BMM) / Geroler (TMM)
Displacement8 – 50 ml/r
Torque11 – 46 N·m
Speed range50 – 1,950 r/min
Max flow16 – 20 L/min
DutyLight load, intermittent operation
Typical drivesSweeper brush · Sprayer boom · Light conveyor end-drive

Used in these application guides