Reducing Bush Locking System
Challenge Shaft Mounted Speed Reducers allow several customisations with regards to the output hub diameters. For example, a size J SMSR has a standard hub of 100mm that can be reduced with bushes to either 95mm or 90mm. The unit can also be supplied with an alternative hub accommodating 120mm which again can be reduced with bushes to 115mm or 110mm.
Figure 1 - Reducing bush locking system
The tables below show the various hub diameters available for each size of Shaft Mounted Speed Reducers
Table 1 - Output Reducing Hub Dimensions
Table 2 - Reducing Hub Keyway Dimensions
Challenge Grip-Loc Locking System
Challenge offer a keyless, frictional locking mechanism that is not only easier to install over a keyway method, but it also makes the shaft much easier to remove when required. Shafts can also be accommodated over a range of diameters for most of the shaft mounted speed reducer range.
The diagram below gives an overview of the locking system and bore sizes available for each of the Shaft Mounted Speed Reducers.
Figure 2 - Challenge Grip-Loc System Overview
Shaft Mounted Speed Reducer Dimensions
The challenge range of Shaft Mounted Speed Reducers are available in a wide range of sizes. A basic dimensional overview of the range is shown in the images below.
A full technical brochure can be downloaded from here;
https://en.challengept.com/amfile/file/download/file/10/product/10360/
Or you can browse our full range on our online catalogue here;
https://en.challengept.com/gearboxes/smsr.html
Figure 3 - Dimensional Overview
Table 3 - Shaft Mounted Speed Reducer Dimensions
Installation Lubrication
Note that Challenge Shaft Mounted Speed Reducers are supplied without oil. Below is simple guidance on filling the SMSR with the correct grade and quantity of lubricant.
Figure 4 - Correct Lubrication Overview
This article is available in a convenient PDF file that can be printed as a wall chart for ease of reference;
