Reduction Gearboxes
Parallel Shaft Helical Gearbox
Parallel Shaft Helical reduction gearboxes are used for transmitting mechanical power along drive lines parallel to the motor shaft axis.
Used in screw jack systems either with a hollow or solid output shaft. Mainly used as the main drive for H, U and T configuration jacking systems due to space restrictions. Also used fitted directly to screw jacks as a primary drive.
Up to 14000Nm torque transmission with gear ratios up to 2099:1.
Useful Information
Gearbox Features
Torque Range
– 140 Nm to 14000 Nm
Power Rating
– 0.17 kW to 125 kW (at 1400 rpm input)
Gear Ratios
– 6.4:1 to 2099:1
Output
– Keyed hollow shaft – typically two bore options per size
– Keyless shrink disc fitting
– Plug-in solid output shaft as an option (single or double ended)
– Metric or Inch series solid output shaft
Input
– IEC and NEMA motor adaptors
– Servo motor adapters
– Metric or inch series solid input shaft
Gearbox Options
AC Motors
– Integral motors and brake motors
– IEC motors and brake motors
– Single and dual speed motors
Main brake features
– DC and AC supply
– Fast brake engage/disengage through electronically controlled AC/DC rectifiers.
Main motor options
– Thermistors and thermostat sensors
– Separate supply forced ventilation
– Line driver and push-pull incremental encoder
Selecting the Right Reduction Gearbox
There are 3 factors to consider when selecting the correct reduction gearbox.
- Select a gearbox type to the closest required power (Pd)
- Find the closest matching output speed hence gear ratio for that gearbox type
- Check that the gearbox power rating is suitable for the actual output speed
Download the Reduction Gearbox selection guide for more information.
