H BUSHED BORE SINGLE GROOVE PULLEY Brand new. Fractional HP, single groove, cast iron pulley. Use with a H-type split taper bushing (sold separately). For use with type "A" and "B" belts. Fully balanced. (Click here to see the corresponding H bushings)
Outside Diameter 7.25"
Belt Type A (1/2") Datum Diameter 6.50"
Belt Type B (5/8") Datum Diameter 6.90"
Shpg. 4 lbs.
Outside Diameter Diameter measured at the outside of the pulley.
Datum Diameter The datum diameters are an industry standard reference point used for calculations such as center distance and belt length. The datum system replaces the pitch system for classical belts and pulleys to compensate for differences in manufacturers construction of belts.
For part 1-bkh75 it states " Fractional horse power " What is fractional? What HP. can this pulley handle?
A: Fractional HP usually refers to motors 15 HP and below. Pulleys are more limited by rim speed and material than by HP ratings at larger diameters. This pulley is limited to approximately 3400 rpm by that standard.