Voith gear units
Voith service for gear units
All benefits at a glance
Gear units for any application
Gear units from Voith are operating all over the world. They are optimally adapted to individual customer requirements and all rail applications.
Gear units for light rail vehicles and trams
Longitudinal drive
Bevel gear unit KSH-type with two stages, fully suspended
- Motor located alongside the bogie
- Motor shaft and wheelset shaft orthogonally to each other
- Motor rigidly linked with the gear unit
- Motor output shaft and Gear unit input shaft connected by a membrane coupling
- Gear unit fully suspended
- Total gear ratio effected by two gear stages (one helical and one bevel gear stage)
- Power transmission from the hollow output shaft of the gear unit to the wheelset shaft by a flexible 2-level rubber wedge coupling
- Compensation of relative movement between Motor-Gear-unit and wheelset shaft by the flexible 2-level rubber wedge coupling
- Suspension elements between Motor-Gear-Unit and bogie frame
Transversal drive
Helical gear unit SZH-type with two stages, fully suspended
- Motor located in the bogie
- Motor shaft and wheelset shaft parallel to each other
- Motor rigidly linked with the gear unit
- Motor output shaft and Gear unit input shaft connected by a membrane coupling
- Gear unit fully suspended
- Total gear ratio effected by two helical gear stages
- Power transmission from the hollow output shaft of the gear unit to the wheelset shaft by a flexible 2-level rubber wedge coupling
- Compensation of relative movement between Motor-Gear-unit and wheelset shaft by the flexible 2-level rubber wedge coupling
- Suspension elements between Motor-Gear-Unit and bogie frame
Basic principle
Gear units for metros
Transversal drive
Helical gear unit SE-type with one stage, axle mounted
- Motor located in the bogie
- Motor shaft and wheelset shaft parallel to each other
- Gear unit axle riding
- Total gear ratio effected by one helical gear stage
- Compensation of relative movement between motor and Gear unit by a gear coupling
- Torque reaction rod between Gear unit and bogie frame
Transversal drive
Helical gear unit SZ-type with two stage, axle mounted
- Motor located in the bogie
- Motor shaft and wheelset shaft parallel to each other
- Gear unit axle riding
- Total gear ratio effected by two helical gear stages
- Compensation of relative movement between motor and Gear unit by a gear coupling
- Torque reaction rod between Gear unit and bogie frame
Basic principle
Gear units for high-speed trains
Transversal drive
Helical gear unit SE-type with one stage, axle mounted
- Motor located in the bogie
- Motor shaft and wheelset shaft parallel to each other
- Gear unit axle riding
- Total gear ratio effected by one helical gear stage
- Compensation of relative movement between motor and Gear unit by a gear coupling
- Torque reaction rod or C-bracket between Gear unit and bogie frame
Transversal drive
Helical gear unit SZ-type with two stage, axle mounted
- Motor located in the bogie
- Motor shaft and wheelset shaft parallel to each other
- Gear unit axle riding
- Total gear ratio effected by two helical gear stages
- Compensation of relative movement between motor and Gear unit by a gear coupling
Longitudinal drive
Bevel gear unit KE-type with one stage, axle mounted
- Electric traction motor located outside the bogie underneath the car body
- Motor drive shaft and wheelset shaft orthogonally to each other
- Power transmission to the gear unit input shaft by cardan shaft
- Gear unit axle riding
- Total gear ratio effected by one bevel gear stage
- Compensation of relative movement between the gear unit and traction motor by cardan shaft
- Torque reaction rod between gear unit and bogie frame
Basic principle
Gear units for diesel multiple units
Longitudinal drive
Bevel gear unit SK-type with two stages, axle mounted
- Mechanical or hydrodynamic transmission located outside the bogie underneath the car body
- Engine drive shaft and wheelset shaft orthogonally to each other
- Power transmission to the gear unit input shaft by cardan shaft
- Gear unit axle riding
- Total gear ratio effected by two gear stages (one helical and one bevel gear stage)
- Compensation of relative movement between the gear unit and transmission by cardan shaft
- Torque reaction rod between gear unit and bogie frame
Longitudinal drive
Bevel gear unit KE-type with one stage, axle mounted
- Mechanical or hydrodynamic transmission located outside the bogie underneath the car body
- Engine drive shaft and wheelset shaft orthogonally to each other
- Power transmission to the gear unit input shaft by cardan shaft
- Gear unit axle riding
- Total gear ratio effected by one bevel gear stage
- Compensation of relative movement between the gear unit and transmission by cardan shaft
- Torque reaction rod between gear unit and bogie frame
Gear units for electric multiple units
Transversal drive
Helical gear unit SE-type with one stage, axle mounted
- Motor located in the bogie
- Motor shaft and wheelset shaft parallel to each other
- Gear unit axle riding
- Total gear ratio effected by one helical gear stage
- Compensation of relative movement between motor and Gear unit by a gear coupling
- Torque reaction rod between Gear unit and bogie frame
Transversal drive
Helical gear unit SZ-type with two stage, axle mounted
- Motor located in the bogie
- Motor shaft and wheelset shaft parallel to each other
- Gear unit axle riding
- Total gear ratio effected by two helical gear stages
- Compensation of relative movement between motor and gear unit by a gear coupling
- Torque reaction rod between gear unit and bogie frame
Transversal drive
Helical gear unit SZH-type with two stages, fully suspended
- Motor located in the bogie
- Motor shaft and wheelset shaft parallel to each other
- Motor rigidly linked with the gear unit
- Motor output shaft and gear unit input shaft connected by a membrane coupling
- Gear unit fully suspended
- Total gear ratio effected by two helical gear stages
- Power transmission from the hollow outputshaft of the gear unit to the wheelset shaft by a flexible 2-level rubber wedge coupling
- Compensation of relative movement between motor-gear-unit and wheelset shaft by the flexible 2-level rubber wedge coupling
- Suspension elements between motor-gear-unit and bogie frame
Longitudinal drive
Bevel gear unit KE-type with one stage, axle mounted
- Electric traction motor located outside the bogie underneath the car body
- Motor drive shaft and wheelset shaft orthogonally to each other
- Power transmission to the gear unit input shaft by cardan shaft
- Gear unit axle riding
- Total gear ratio effected by one bevel gear stage
- Compensation of relative movement between the gear unit and traction motor by cardan shaft
- Torque reaction rod between gear unit and bogie frame
Basic principle
Gear units for diesel-hydraulic locomotives
Longitudinal drive
Bevel gear unit SK-type with two stages, Axle mounted
- Hydrodynamic transmission located outside the bogie in the loco frame
- Engine drive shaft and wheelset shaft orthogonally to each other
- Power transmission to the gear unit input shaft by cardan shaft
- Gear unit axle riding
- Total gear ratio effected by two gear stages (one helical and one bevel gear stage)
- Compensation of relative movement between the gear unit and transmission by cardan shaft
- Torque reaction rod between gear unit and bogie frame
Longitudinal drive
Bevel gear unit KE-type with one stage, axle mounted
- Hydrodynamic transmission located outside the bogie in the loco frame
- Engine drive shaft and wheelset shaft orthogonally to each other
- Power transmission to the gear unit input shaft by cardan shaft
- Gear unit axle riding
- Total gear ratio effected by one bevel gear stage
- Compensation of relative movement between the gear unit and transmission by cardan shaft
- Torque reaction rod between gear unit and bogie frame
Gear units for electric and diesel-electric locomotives
Transversal drive
Helical gear unit SET-type in cannon box design with one stage, axle mounted
- Motor located in the bogie
- Motor shaft and wheelset shaft parallel to each other
- Motor rigidly linked with the gear unit
- Motor-gear unit axle riding
- Total gear ratio effected by one helical gear stage
Transversal drive
Helical gear unit SE-type with one stage, axle mounted
- Motor located in the bogie
- Motor shaft and wheelset shaft parallel to each other
- Gear unit axle riding
- Total gear ratio effected by one helical gear stage
- Compensation of relative movement between motor and gear unit by a gear coupling
- Torque reaction rod between gear unit and bogie frame
Basic principle
Gear units for special purpose vehicles
Longitudinal drive
Bevel gear unit SK-type with two stages, axle mounted
- Mechanical or hydrodynamic transmission located outside the bogie underneath the car body
- Engine drive shaft and wheelset shaft orthogonally to each other
- Power transmission to the gear unit input shaft by cardan shaft
- Gear unit axle riding
- Total gear ratio effected by two gear stages (one helical and one bevel gear stage)
- Compensation of relative movement between the gear unit and transmission by cardan shaft
- Torque reaction rod between gear unit and bogie frame
Longitudinal drive
Bevel gear unit KE-type with one stage, axle mounted
- Mechanical or hydrodynamic transmission located outside the bogie underneath the car body
- Engine drive shaft and wheelset shaft orthogonally to each other
- Power transmission to the gear unit input shaft by cardan shaft
- Gear unit axle riding
- Total gear ratio effected by one bevel gear stage
- Compensation of relative movement between the gear unit and transmission by cardan shaft
- Torque reaction rod between gear unit and bogie frame
Piano for the Red Arrow
Reliable gear units for Rio
Rain-resistant gear units for the Pramexs
Custom-fit solution for French ultrasonic test trains
Full suspension to protect the rail
Fully sprung gear units for maximum driving comfort
Large sizes for Korean freight transport
French style for Korea
Compact gear units for high speeds
Gear units for quieter rail traffic
More than 5,000 SZ-400 for rail transport worldwide
Customer-oriented production for Bombardier
On site for Delhi's Metro
Our service experts take care of maintaining the Voith SE-344 gear units installed in the vehicles of the Delhi Metro. DMRC benefits from fast response times. After all, the Voith Service Center is located in Delhi’s' suburb Faridabad and thus only a one-hour ride on the Violet line.
Couplings for rail vehicles
Whether it's a standard coupling or a new design, Voith offers you the right solution. The following overview shows you our most important products. However, our full range of bespoke solutions goes beyond those listed here.
Gear couplings (input)
Gear coupling
With metal bellow seal
Max. speed | up to 5,500 RPM |
Operation torque | up to 5,500 Nm |
Short-circuit torque | up to 17,000 Nm |
- Double cardanic, torsionally rigid and self-centering gear teeth
- Metal bellow seal for zero leakage of the coupling
- Suitable for high axial, radial and angular misalignments
- Suitable for high-speed and very high-speed trains
- Easy mounting and dismounting of gear coupling half without interference fits loose
- Easy lubricant (oil) change without disassembly of the drive
- Self-lubricated (oil)
- Long lifetime and wear resistant
- Long interval between overhaul (lower service cost)
Optional
- Overload protection by slipping element
- Electrical insulation
- Extra seal against very dusty environment
Gear coupling
With flexible seal
Max. speed | up to 5,500 RPM |
Operation torque | up to 5,500 Nm |
Short-circuit torque | up to 17,000 Nm |
- Double cardanic, torsionally rigid and self-centering gear teeth
- Suitable for axial, radial and angular misalignments
- Easy mounting and dismounting of gear coupling half without interference fits loose
- Self-lubricated (grease)
- Long lifetime and wear resistant
- Long interval between overhaul (lower service cost)
Optional
- Overload protection by slipping element
- Electrical insulation
Membrane couplings (input)
Membrane coupling
Max. speed | up to 5,000 RPM |
Operation torque | up to 10,500 Nm |
Short-circuit torque | up to 25,000 Nm |
- Torsional rigid and bending flexible coupling
- Suitable for minor axial and angular misalignments
- High radial stiffness
- Easy mounting and dismounting of gear coupling half without interference fits loose
- Wear-free
- Delivery possible as an assembly motor-coupling-gear unit
Optional
- Overload protection by slipping element
- Electrical insulation
- Engine speed sensor toothing
Double membrane coupling
Max. speed | up to 5,000 RPM |
Operation torque | up to 10,500 Nm |
Short-circuit torque | up to 25,000 Nm |
- Torsional rigid and bending flexible coupling
- Suitable for minor axial and angular misalignments
- High radial stiffness
- Easy mounting and dismounting of gear coupling half without interference fits loose
- Wear-free
- Delivery possible as an assembly motor-coupling-gear unit
Optional
- Overload protection by slipping element
- Electrical insulation
- Engine speed sensor toothing
Membrane coupling
With fan
Max. speed | up to 5,000 RPM |
Operation torque | up to 10,500 Nm |
Short-circuit torque | up to 25,000 Nm |
- Torsional rigid and bending flexible coupling
- Fan function
- Suitable for minor axial and angular misalignments
- High radial stiffness
- Easy mounting and dismounting of gear coupling half without interference fits loose
- Wear-free
- Delivery possible as an assembly motor-coupling-gear unit
Optional
- Overload protection by slipping element
- Electrical insulation
- Engine speed sensor toothing
Rubber wedge couplings (output)
Rubber wedge coupling
With one joint
Max. speed | up to 1,100 RPM |
Operation torque | up to 20,000 Nm |
Short-circuit torque | up to 55,000 Nm |
- Single cardanic and torsionally flexible elastic coupling
- Suitable for axial and angular misalignments
- High radial stiffness
- Change of rubber elements without drive disassembly
Rubber wedge coupling
With two joints
Max. speed | up to 1,100 RPM |
Operation torque | up to 40,000 Nm |
Short-circuit torque | up to 110,000 Nm |
- Single cardanic and torsionally flexible elastic coupling
- Suitable for axial and angular misalignments
- High radial stiffness
- Change of rubber elements without drive disassembly
Coupling combinations (output)
Coupling combination
Gear coupling - Gear coupling
Max. speed | up to 900 RPM |
Operation torque | up to 7,000 Nm |
Short-circuit torque | up to 23,000 Nm |
- Double cardanic, torsionally rigid and self centering gear teeth
- Direct interface to wheel axle
- Ring gear is part of gear unit hollow shaft (reduces installation space and additional cost)
- Suitable for axial, radial and angular misalignments
- Low maintenance cost
- Self-lubricated (grease)
Coupling combination
Gear coupling - Rubber wedge coupling (wheel interface)
Max. speed | up to 900 RPM |
Operation torque | up to 7,000 Nm |
Short-circuit torque | up to 23,000 Nm |
- Combination of torsionally rigid gear teeth with self-centering and torsionally flexible elastic coupling
- Direct wheel connection (single-wheel driver)
- Ring gear part of gear unit hollow shaft (reduces installation space and additional cost)
- Suitable for axial, radial and angular misalignments
- High axial misalignments compensated by gear coupling half
- Gear coupling half self-lubricated (grease)
Coupling combination
Gear coupling - Rubber wedge coupling (axle interface)
Max. speed | up to 900 RPM |
Operation torque | up to 7,000 Nm |
Short-circuit torque | up to 23,000 Nm |
- Combination of torsionally rigid gear teeth with self-centering and torsionally flexible elastic coupling
- Direct connection to wheelset axle by face gear
- Ring gear part of gear unit hollow shaft (reduces installation space and additional cost)
- Suitable for axial, radial and angular misalignments
- High axial misalignments compensated by gear coupling half
- Gear coupling half is self-lubricated (grease)
Lamella couplings (input/output)
Lamella couplings
Max. speed | up to 4,500 RPM |
Operation torque | up to 11,000 Nm |
Short-circuit torque | up to 28,000 Nm |
Voith Service for gear units
- Everything from a single source: development, design, production – and service!
- Decades of product experience as an original equipment manufacturer and service provider
- Fast and smooth cooperation and best service thanks to a worldwide network of service locations
- Long-term partnership and planning security are guaranteed due to longstanding corporate stability