Plastic Pulley Triple

Economical pulley for simple machine experiments.

Triple plastic pulley, in tandem
Pully diameters of 25, 38 and 50 mm
Low friction design
Open sided frame for ease of use

A high quality, triple plastic pulley in tandem, on an open sided steel frame, with hooks at each end carrying three ball bearing plastic pulleys with diameters of 25, 38 and 50 mm respectively. The open sided frame greatly facilitates stringing up as no 'threading' is involved. Inner gap of pulley measures 3 mm, overall length is 17.6 cm. Capable of holding over 30 lbs of weight.