Browning® variable pitch design offers pitch diameter ranges 3.4 - 8.5 in to 25 HP. Unique manufacturing design ensures precise adjustability, balance and unmatched performance. Browning® variable pitch sheaves help reduce vibration by having a robust casting ribbed design that helps improve balance and heat dissipation. These sheaves offer tight thread tolerances for superior performance. 1 and 2 groove sheaves will accept the widest range of belts of any manufacturer 3L, 4L, A, AX, 5L, B, BX, 5V and 5VX. Browning® FHP Variable Pitch Sheave, Type 4, Series: 2VP, Finished Bore, 19 mm Bore, 100.33 mm OD, 2.8 to 3.8 in (A)/3 to 4 in (B)/2.5 to 3.3 in (3L) Pitch Diameter, 2 Grooves, 1-3/8 to 2-1/8 in Face Width, 3 in Overall Length, For Use With: GripBelt® 4L/A, 5L/B and 5V Cross Section FHP V-Belt, Cast Iron