Castair Motor Pulleys

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Castair Motor Pulleys Replacement motor pulleys for air compressors, in fixed-bore and hub styles, 1A / 1B / 2B / 3B groove configurations. Specifications Motor Pulleys O.D. Shaft Size″ # Grooves Part # 4″ 5/8″ fixed bore 1A P1A40-5/8 4″ 5/8″ fixed bore 1B P1B40-5/8 3.35″ 7/8″ fixed bore 2B P2B335-7/8 3.55″ Hub 2B P2B355H 3.95″ Hub 2B P2B395H 4.45″ Hub 2B P2B445H 4.95″ Hub 2B P2B495H 6.25″ 1-3/8″ fixed bore 2B P2B625-13/8 6.75″ 1-3/8″ fixed bore 2B P2B675-13/8 7.25″ 1-1/8″ fixed bore 2B P2B725-11/8 8.0″ 1-3/8″ fixed bore 2B P2B80-13/8 8.75″ 1-3/8″ fixed bore 2B P2B875-13/8 6.15″ Hub SD 3B P3B615SD 8.38″ Hub SK 3B P3B838SK 9.75″ Hub SK 3B P3B975SK Show more