Shaft Mounted Speed Reducers – Hub Bores, Locking Options and Dimensions

Shaft Mounted Speed Reducers – Hub Bores, Locking Options and Dimensions

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.

 

Reducing bush locking system
Figure 1 - Reducing bush locking system

 

The tables below show the various hub diameters available for each size of Shaft Mounted Speed Reducers

 

Output hub details
Table 1 - Output Reducing Hub Dimensions

 

Reducing hub keyway 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.

 

Challenge grip-loc locking system
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

 

 Dimension Overview
Figure 3 - Dimensional Overview

Dimension table

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.

 

Lubrication

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;

https://www.challengept.com/content/pdf/smsr_poster.pdf

Share: