- Classical QD
High-quality cast iron heavy duty pulleys
for classical (A, B, C, D) V-Belts.
Standardized QD bushings

- Power-Wedge QD
High-capacity cast iron pulleys
for use with narrow (3V, 5V, 8V)
V-Belts. Standardized QD
bushings.

QD is a registered trademark - Emerson Electric o Neoprene is a registered trademark - DuPont Dow Corp.

- QD Bushings
Standardized for interchangeability.
Tapered and fully split through
bore length for equivalent of
interference fit.