2.5" DIAMETER 1" BORE 1 GROOVE V-BELT PULLEY  BK251

SINGLE GROOVE PULLEY
Brand new. Single groove, cast iron pulley with smooth bore and set-screw  For use with type "A" and "B" belts. Fully balanced.
  • Bore 1
  • Outside Diameter 2.5"
  • Belt Type A (1/2") Datum Diameter 2.10"
  • Belt Type B (5/8") Datum Diameter 2.50"
  • Keyway

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.