Timing Belt and Poly Chain® Pulleys

V-belts transfer the drive power via a form fit on the V-belt pulley. In contrast to the V-belt drive, this is a synchronous power transfer. A differentiation is made between V-belt pulleys for finished boreholes and V-belt pulleys for taper bushes. They are available in metric and imperial partitions. Depending on the profile and the pulley diameter, this pulley type is available in steel (C45), grey cast iron (EN-GJL-200) or aluminium.

Timing Belt Pulleys - Types (PDF)

Poly Chain® Pulleys - Types (PDF)

Metric V-belt pulleys and Poly Chain® pulleys

Possible standard belt widths (depending on the profile) for HTD pulleys: 6 mm, 9 mm, 15 mm, 20 mm, 25 mm, 30 mm, 40mm, 50 mm, 55 mm, 85 mm, 115 mm, 170 mm Possible standard belt widths (depending on the profile) for Poly Chain® pulleys: 12 mm, 21 mm, 36 mm, 62 mm (partition 8mm); 20 mm, 37 mm, 68 mm, 90 mm (partition 14mm)

Possible standard belt widths (depending on the profile): 4 mm, 6 mm, 10 mm, 16 mm, 25 mm, 32 mm,  50 mm
Cogged pulleys for T and AT metric profiles are not available as a standard with taper support” These pulleys are centred or pre-drilled and must be processed prior to mounting.

Imperial V-belt pulleys

Possible standard belt widths (depending on the profile): 1/4" (=6.35 mm), 5/16" (=7.94 mm), 3/8" (=9.53 mm), 1/2" (=12.7 mm), 3/4" (=19.05 mm), 1" (=25.4 mm), 1 1/2" (=38.1 mm), 2" (=50.8 mm), 3" (=76.2 mm)