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Worm Gear Speed Reducers
- 8 Ratios Available from 5:1 to 60:1
- 7 Gear Box Sizes from 1.33 to 3.25'
- Universally Interchangeable Design for OEM Replacement
- Double Bearings Used on Both Shaft Ends
HDRF175-40/1-R-56C Model Options
View all modelsEdit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.
*Highlighted options are not compatible. Please select a different combination.
Output Type
Input Type
Input Speed Ratio
Box Size
Features
The HDR Series worm gear reducers are used in low to moderate horsepower applications to reduce speeds and increase torque. Worm gear reducers are available in direct or indirect drive, direct drive models are 56C or 145TC flange mount with either right, left or dual output shafts or a hollow bore output. The indirect drive models are shaft input-shaft output boxes for use with sprocket or pulley drive systems. They provide an effective low cost solution to speed reduction and increased torque, with higher tolerances for shock loading than helical gear reducers.
In order to select a gearbox speed reducer, you will need to determine the required torque and service factor for the application. Click on 'Specs' above for a table that will assist in determining the service factor. For service factors above 1.0, multiply the required torque by the service factor.
Use the Part Number Builder (below the ordering table) to find additional models
In order to select a gearbox speed reducer, you will need to determine the required torque and service factor for the application. Click on 'Specs' above for a table that will assist in determining the service factor. For service factors above 1.0, multiply the required torque by the service factor.
Use the Part Number Builder (below the ordering table) to find additional models
