Browning® 3779949 VP Series Type 2 Variable Pitch Sheave, 1-3/8 in Finished Bore, 6.55 in OD, 1 Groove, 4.9 to 5.9 in (A/4L)/5.2 to 6.4 in (B/5L/5V) Dia Pitch, 7/8 to 1-1/4 in W Face
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.
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BrandBrowning®
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UPC662289678761
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Manufacturer Part Number3779949
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CountryUSA
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Face Width7/8 to 1-1/4 in
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Pitch Diameter4.9 to 5.9 in (A/4L)/5.2 to 6.4 in (B/5L/5V)
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MaterialCast Iron
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TypeType 2
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SeriesVP Series
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Number of Grooves1
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Outside Diameter6.55 in
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Bore Diameter1-3/8 in
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Bore TypeFinished
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Overall Length2-7/32 in
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Suitable For Use WithGripBelt® 4L/A, 5L/B and 5V Cross Section FHP V-Belt
- 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
- 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
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Alternative Part Number1VP68X 1 3/8
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UNSPSC24101613
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Includes(1) Hollow Head Setscrews
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Package DescriptionEACH
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Warranty1 Year
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Warranty Information
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Instruction/Installation Manual
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Browning® 3779949 VP Series Type 2 Variable Pitch Sheave, 1-3/8 in Finished Bore, 6.55 in OD, 1 Groove, 4.9 to 5.9 in (A/4L)/5.2 to 6.4 in (B/5L/5V) Dia Pitch, 7/8 to 1-1/4 in W Face
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.
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Black Oxide Plated Steel Two-Piece Clamping Collar. Design fully engages the shaft without marring. Easily installed where major disassembly would otherwise be required. Greater axial holding power than set screw or one-piece clamping collars. Effective on hard & soft shafts.
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