Gear Units (Complete Unit & Spare Parts)
Modern drive solutions have to withstand the most varied influences, achieve maximum efficiency, and be absolutely reliable.
When these requirements are met, high plant availability and low product life cycle costs can be ensured. We offer
you the most comprehensive range of industrial gear units in the world.
Simply select the ideal gear unit for your requirements and benefit from the advantages offered to you by our standard range.
Horizontal or vertical mounting positions, different versions of helical, bevel and bevel-helical gear units, and the
compact design of our gear units give you maximum flexibility in the design of your plant.
● Helical and bevel helical gear unit
● Planetary gear unit
● Bevel planetary gear units
● Gear Units for Single Pinion Drives
● Girth gear units
● Geared Motors
● Spare part for all type gearbox
Shaft Couplings (Complete Unit & Spare Parts)
● Shaft Coupling
The mechanical drive train comprises individual units such as motor, gear unit and driven machine. The coupling connects
these component assemblies. As well as the transmission of rotary motion and torque, other requirements may be made
of the coupling.
○ Compensation for shaft misalignment where restorative forces are low
○ Compensation for shaft displacement with low restorative forces
○ Control of characteristic angular vibration frequency and damping
○ Interruption or limitation of torque
○ Noise insulation, electrical insulation
Couplings are frequently chosen after the machines to be connected have already been selected. Thanks to a large number of
different coupling assembly options, specified marginal conditions for clearance and connection geometry can be met
from the standard range. The coupling also performs secondary functions, e.g. providing a brake disk or brake drum
for operating or blocking brakes, devices to record speed or the attachment of sprockets or pulleys. Couplings are
divided into two main groups, couplings and clutches.
Rigid couplings, designed as clamp, flanged or mechanism couplings, connect machines which must not undergo any shaft
misalignment. Hydrodynamic couplings, often also called fluid couplings, are used as starting couplings in drives
with high mass moments of inertia of the driven machine. In drive technology very often flexible, positive couplings,
which may be designed to be torsionally rigid, torsionally flexible or highly flexible, are used.
▪ Clamp couplings
▪ Flanged couplings
▪ Mechanism couplings
○ Hydrodynamic couplings
○ Magnetic couplings
○ Friction couplings
○ Torsionally Rigid couplings are designed to be rigid in a peripheral direction and flexible in radial and
axial directions. The angle of rotation and torque are conducted through the coupling without a phase shift
○ Gear couplings
○ All-steel membrane couplings
○ Universal-joint couplings
○ Parallel-crank couplings
○ Torsionally Flexible couplings have resilient elements usually manufactured from elastomer materials. Using an
elastomer material with a suitable Shore a hardness provides the most advantageous torsional stiffness and damping
for the application. Shaft misalignment causes the resilient elements to deform.
○ Steel-spring couplings
○ Pin-and-bush couplings
○ Claw couplings
○ Rubber element couplings
○ Highly Flexible couplings have large-volume (elastomer) resilient elements of low stiffness. The angle of rotation
and torque are conducted through the coupling with a considerable phase shift.
○ Rubber-tire couplings
○ Rubber-disk couplings
○ Rubber spacer ring couplings
Clutches interrupt or limited the transmissible torque. The engaging and disengaging forces on externally operated
clutches are introduced via a mechanically, electrically, hydraulically or pneumatically operating mechanism.
Overload, centrifugal or freewheel clutches draw their engaging energy from the transmitted output.
● Externally Operated
○ Safety Couplings
● Speed Controlled
○ Centrifugal Clutches
● Rotation Direction Controlled
○ Freewheel Clutches
○ Overrunning Clutches