Good V-belt Maintenance
There are four areas of good V-belt maintenance but we will only discuss Alignment in detail:
1. Sheave groove inspection
2. Belt inspection
3. Belt & Sheave alignment
a) Use dial indicator to verify that Total Indicator Runout (TIR) of each shaft end is no greater than 2 mils.
b) Use a dial indicator to eliminate Face Runout of each pulley on its respective shaft. Adjust pulley’s bushing mounting screw accordingly.
Tolerance: 1 mil/inch of pulley diameter
c) Use a string, straightedge or better yet a laser line tool to accurately align the pulleys.
This is achieved by:
- Shimming movable machine vertically to eliminate vertical (top to bottom) angularity (twist angle) between pulleys.
- Shifting moveable machine horizontally to eliminate horizontal (side to side) angularity between pulleys
- Shifting moveable machine axially to eliminate axial offset between pulleys.
4. Belt tensioning
Find out more about LUDECA Pulley Alignment Tools
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