Browning® 1045228 BRO1VP251/2

The principle of a variable pitch sheave is that the threaded angular faced discs forming the V-shaped groove in which the belt rides are movable. VP sheaves consist of a male with a threaded barrel, and a female with a threaded bore. The male section with threaded barrel has flat surfaces at 180 deg increments that allow a flat surface for the setscrew to mate with. When the discs are moved toward each other, the belt rides higher in the groove and the pitch diameter of the sheave is larger which increases the driven speed. When the discs are moved away from each other, the belt rides lower and the pitch diameter is smaller decreasing the driven speed. The common term for this speed adjustment is called number of turns open from closed position.

Browning® Variable Pitch Sheave, Type 1, Series: VP Series, Finished Bore, 1/2 in Bore, 2-1/2 in OD, 1.6 to 2.4 in Pitch Diameter, 1 Grooves, 17/32 to 25/32 in Face Width, 1-11/16 in Overall Length, For Use With: GripBelt® 3L Cross Section FHP V-Belt, Cast Iron

• External rib design provides cooling for longer belt life
• Increases wall thickness by 30%
• Increased hub diameter by 20%
• Tighter tolerances by 25%
• Twice balanced after assembly
• Tightened micro-finish on groove walls for increased belt life
• Variable speed sheaves through 5 grooves, precision balanced to provide smooth vibration-free performance
• Largest selection in the Industry - Browning offers the widest range of variable speed sheaves in the market today
• One and two Groove product are available in 1.6 in to 8.5 in covering up to 25 horsepower
• VP sheaves consist of a male with a threaded barrel, and a female with a threaded bore
• The male section with threaded barrel has flat surfaces at 180 deg increments that allow a flat surface for the setscrew to mate with
• When discs are moved toward each other, the belt rides higher in the groove and the pitch diameter of the sheave is larger which increases the driven speed
• Precision Molded Cogs - Provide more surface area for heat dissipation and increase belt flexibility
• Cooler running means longer life
• Browning Notched belts assure longer life when replacing existing Wrapped V-Belts
• Close Belt tolerance - Browning Belts offer the Code 1 in Match belt system on all classical and 358 in Belts, allowing easy selection of just one match number for each belt size
• High Tensile Cord - Specially treated cords to provide strength and additional flex life while providing resistance to elongation for the belt
• Raw-Edge Sidewalls - Improved gripping contract with pulley sidewalls
• Assures less vibration and Smoother , quieter performance
• Notched belts provide higher horsepower than wrapped belts

• Warranty Information https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Browning_A175382_Warranty.pdf