BUSCH TYR - Maintenance V-Belt and Pulley Alignment

Maintenance | 7
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7.3 Maintenance V-Belt and Pulley Alignment
Interval Maintenance work
After 10-20 operating hours • Check the belt tension and the V-belts.
• Check the pulley alignments
Half – yearly (or more often
depending on application).
• Check the belt tension and the V-belts.
• Check the pulley alignments
Once a year • Change the V-belts.
• V-belt change intervals for higher loads and ambient
temperatures (more than +40°C) range from 4000 to
max. 8000 hours.
1. Parallel offset:
Product
Permissible parallel
offset of two pulleys
10 mm per
1000 mm of strand lenght
V-belts & multiple
V-ribbed belts
max. 1% of center distance for V-belts
2. Angular offset of two pulleys:
Product
Permissible angular
offset of two pulleys
0.5°
V-belts & multiple
V-ribbed belts
max. 0.5° for V-belts
3. Axial twist of pulleys:
Product
Permissible axial twist
of pulleys
0.25°
V-belts & multiple
V-ribbed belts
max. 0.25° for V-belts