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Hi-Q Cast Iron Variable Pitch Sheaves

Permits Variation of as much as 30% in speed when used with sheaves of fixed diameter
Removable lock key in common commercial design (Style 2 parts).
Strong cast iron construction ensures long life of groove and bore and keyway.

 

TYPE 1 - One setscrew over flat. Machined all over to assure close balance
TYPE 2 - One setscrew over removable lock key. Key must be replaced and locked in position by setscrew(s) before operation. All components are individually balanced before assembly to assure close balancing tolerances.