Parts & Options for gearboxes and electric motors

In addition to our standard products we offer you a few parts and options for gearboxes and electric motors. No matter if you are in need of some spare parts or if you are looking for some special options to build your individual drive system – we will be glad to provide you with the parts you need.


1. Motor input couplings

So far, the connection of the individual components of a geared motor consuming and requires the use of tools. The gearbox is attached to the flange of a motor using screws and screwdrivers. Making this connection takes some time and can only be realized if the corresponding material is available. Depending on the size of the gearbox not only the size of the screws and the tool varies but also the size of the motor. Only a few motors of different sizes can be attached to a specific gearbox size.

The biggest disadvantage of this common mounting method is the stocking of the different required sizes in stock. In the end, one has to decide between increased costs for warehousing or less flexibility in custom conversion.


Using the motor input coupling from HYDROMEC, motors of various sizes can be attached to a gearbox. Through the use of this coupling can be generated from a gearbox in the warehouse up to four different customer gearbox. In addition, the user can decide which motor make he wants to grow. This results in an enormously high degree of flexibility through which various customer requirements can be considered and implemented.


A coupling can be used for all gear types from the HYDROMEC product range. These include worm gearboxes, helical gearboxes, flat gearboxes as well as helical bevel gearboxes and parallel shaft gearboxes. The use of the motor input coupling is currently carried out for transmissions in the power range 10 – 1000 Nm output torque.


Would you like to know more about the principle of clutch transmissions? Here you can find out more.


  • Five basic sizes KA – KE
  • Power range 10 – 1000 Nm
  • Motor shaft diameter 9mm – 28mm
  • Also suitable for stainless steel gears
  • Motor power range 0.06kW to 5.5kW mountable

Motor input coupling

Motor input coupling

Gearbox with motor input coupling

wormgearbox with motor input coupling

Adding an electric motor

Adding an electric motor

2. Coupling star made of stainless steel braid

The splintering of paint or metal due to aggressive cleaning agents can lead to considerable production problems in many industries. Stainless steel drives help eliminate this problem in the future from the production. Stainless steel gearboxes, stainless steel motors as well as VFZ aluminum gearboxes with special nano-coating are more hygienic and corrosion-resistant than conventional aluminum or gray cast iron drives due to their surface structure.

To optimize the production process in terms of cleanliness, it makes sense that all drive components made of stainless steel.


A special feature is the stainless steel coupling star, which is compatible with stainless steel drives. It is elastic and at the same time vibration-damping. It is mainly used in combination with steel, cast iron or hard-coated aluminum hubs.


In contrast to other coupling stars, corrosive environments can not harm the patented stainless steel star. The braid has a high temperature resistance up to 500 ° C with almost constant torque capacity. Torsional stiffness and damping distinguish it as well as its chemical resistance. In addition, the star is resistant to aggressive environmental influences. It is electrically conductive and resistant to hydrolysis. The standard hardness of the stainless steel star corresponds to 92 Shore A of the elastomer star.


Would you like to know more about the stainless steel braided coupling star? Here you find out more.


  • Stainless steel braid
  • Ideal supplement for stainless steel drives
  • Temperature resistance up to 500 ° C
  • Torsional rigidity and damping
  • Electrically conductive and hydrolysis resistant
  • Hardness 92 Shore A of the elastomer star

Stainless steel coupling star

stainless steel coupling star

3. Accessories & Spare Parts

For all electric motors, gearmotors, frequency inverters and gearboxes from our product range, you will find the right accessories with us.

You need a spare part or accessory as an extension for your existing drive? We offer a wide range of spare parts for your drive. Our accessories include:


Motor accessories
  • Brakes
  • Switch
  • Feet
  • Timer
  • External fan
  • Fan cowls & fan blades
  • Terminal boxes & terminal boards
  • End shields
  • PTO / PTC
  • Brake rectifier
  • Capacitors
  • Cable
Gearbox Accessories
  • Feet
  • Torque arms
  • Motor input clutches
  • Wavers
  • Spacers
  • Flanges
  • Sleeves
  • Adjustment wheels
  • Shrink discs
  • Stainless steel clutch star
  • Ball Bearings
  • Oil Seals
Frequency Inverter Accessories
  • Displays
  • Adapter plates
  • Braking resistors
  • Filter