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V-Belt Sizing Guide
● Belt size refers to the pulley groove width (B) forbelts underand
equal to 1/2”.
● Belt size refers to the belt top width (A) forbelts over 1/2” .
A B BELT SIZE BELT TOP WIDTH PULLEY GROOVE WIDTH (in) (mm) (in) (mm) (in) (mm)
3/8 9.5 0.422 10.72 0.380 9.65 1/2 12.7 0.547 13.89 0.500 12.70 11/16 17.5 0.688 17.48 0.625 15.88 3/4 19.1 0.750 19.05 0.690 17.53 15/16 23.8 0.938 23.83 0.878 22.30 1 1/16 27.0 1.062 26.97 1.003 25.48 1 1/4 31.8 1.297 32.94 1.253 31.83
V-Belt Maintenance Tips
Keep the V-Belts on yourengine in good condition. V-Belt failure can cause malfunctions of the charging system and overheating. Regularly do the following:
● Check forcracked, worn, orfrayed belts. On matched belt sets, always replace the complete set. If just
one belt is bad, uneven load on belts, pulleys, bearings, and shafts can occur.
● Check pulley grooves to make sure they are not worn, damaged, oraligned incorrectly. Poorbelt to
