Combination of hydraulic motor, gearbox and brake

Drives with high required torques and at the same time low output speeds can often be realized economically more favorable by a combination of hydraulic motor and one- to four-stage planetary gear. In addition, spring-applied multi-disc brakes, which are required when holding static loads, can be installed between the motor and the gear unit.

With our geared motors, continuous torques of approx. 0.3 to 540 kNm can be achieved as standard.

The power range extends from 0.3 to 160 kW. If required, higher torques and outputs can also be realized.

We distinguish between coaxial and angular gearmotors.

RM 1250 hydraulic brake gear motor

Angular geared motors

Angular geared motors have a short overall length and are often used as wheel drives.

RM 450 hydraulic gear motor

Coaxial geared motors

Coaxial hydro gearmotors have a small overall diameter, but generally require more installation space in terms of length than angular gearmotors.

RM 160 hydraulic brake motor

Multiple-disc brakes

For safe holding of static loads, our hydraulic motors and motor-gearbox combinations can additionally be equipped with a spring-applied multi-disc brake. The brake opens when pressure is applied to the control line connection. The max. holding torque is achieved by spring force when the control line is depressurized. A distinction must be made between the LBD and FL brake types:

The brakes of type LBD form a unit with the motor. They are basically designed for the maximum possible motor torque. The connection dimensions of the brakes are identical to those of their associated motors, so that the brakes can be easily retrofitted if required. They include surface-treated internal parts and a special sealing system, which is why these brakes can also be operated with flame-retardant pressure fluids such as HFC.

KM 63 hydraulic brake motor

Standardized mounting parts are used for mounting on a planetary gear unit. FL type brakes basically form a unit with the respective gear unit. The hydraulic motor is also mounted to the brake input using standard attachments. The selection of brakes depends on the gear unit size and the respective holding torque.

Download information

Catalog Hydro Gearmotors and Hydro Brake Gearmotors

Description, notes, design

Our hydro motors can be combined with any of our one to four stage planetary gearboxes. In addition, spring-applied multi-disc brakes can be installed between the motor and the gearbox.

Download catalog


Manual multi-disc brakes / planetary gear units

Assembly and operating instructions

Standard series EM - ED - ET - EQ - EC - PD - PDA
S-Serie SL - SC

Download assembly and operating instructions

Download Operating Instructions LB Universal Drive


Spring-applied multi-disc brakes

Assembly and Operating Instructions Series LB

The pressure oil released spring-applied multi-disc brake is intended exclusively for use under the specified technical data and operating conditions. The brake can be used as a holding or working brake.

Download assembly instructions LB


Assembly and Operating Instructions Series LBD

LBD brakes are designed as standstill brakes and are suitable for dry or wet running.

Download assembly instructions LBD

Gearbox and brake application areas

Slew ring drive in mining

Our hydrobrake gearmotors are also used in mining, e.g. for drives on the slewing rings of bucket wheel excavators.  The slewing rings are arranged between the chassis and the superstructure and enable the superstructure to be rotated relative to the chassis. Two hydrobrake gearmotors are often mounted on a spider for this purpose.

Further application examples:

Recycling / Shredder

Steel Industry / Floor Roller Drive Coils

Conveyor technology / chain conveyor

Shipyards & ports / winch drive

Mining slewing ring drive bucket wheel excavator