5B48SD Heavy Duty QD Sheave 2-7/8" Diameter • The three flats on

• The three flats on the shank insure positive chucking with out slippage

This means that the brass insert is a permanent part of the strain relief

HEPA Filtration for improved indoor air quality

the ratio should be kept low

• Made of high carbon tool steel

5B48SD Heavy Duty QD Sheave 2-7/8" Diameter • The three flats on5B sheaves are precision machined from gray cast iron, statically balanced, painted with baked enamel finish and are individually packaged. Sheaves are bored to accept QD style bushings. Order bushings separately. The last 1 or 2 letters of the sheave part number designates the QD bushing size. Click Here for Catalog Page