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Timing Pulley Flanges

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About Timing Pulley Flanges

Timing pulley flanges are used to maintain belt contact with a timing pulley in power transmission applications. Typically, stock pulleys include options for flanges. Separate flanges are available for custom pulleys made from pulley stock. Timing pulley flanges are manufactured to fit timing pulleys of the same pitch and size. The dimensions of a pitch, including the mating flange, are specified by the number of grooves. Pulley pitch is the distance from the midpoint of one tooth to the midpoint of an adjacent tooth. Timing pulley flanges are available in both English and metric units. English pitch is specified in inches (in.) or fractions of an inch. Lettered designations include L, H, and XL. Metric pitch is specified in millimeters (mm). Letter designations include GT and HTD. 

Timing pulley flanges are made from metals such as aluminum, steel, carbon steel, alloy steel, hardened steel, and stainless steel. Aluminum is bluish, silver-white, malleable, ductile, light, metallic element with good electrical and thermal conductivity, high reflectivity, and resistance to oxidation.  Aluminum is lighter and less strong than steel, a form of iron that contains carbon in any amount up to about 1.7 percent as an essential alloying constituent. Many grades of carbon and alloy steels are used in timing pulley flanges. Hardened steel is another common material choice. Stainless steel is chemical and corrosion resistant and can have relatively high stress ratings. It does not require anti-corrosion coatings, but cannot be hardened to same degree as carbon steels.

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Engineering Web: Timing Pulley Flanges

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Timing Pulley Bar Stock & Flanges | B&B Manufacturing
Timing Pulley Bar Stock & Flanges B&B Manufacturing is a leading provider of U.S.-made timing pulley stock and timing pulley flanges for:
See B & B Manufacturing, Inc. Information
Timing Belt Pulleys & Belts - Power Transmission...
Timing Pulley Bar Stock & Flanges Roller Chain Sprockets Timing Pulleys Timing Belts Bushings Bar Stocks & Flanges
See B & B Manufacturing, Inc. Information
Timing Pulleys Flanges Grooved Flat V Belt Pulleys Idler...
SDP/SI ON-LINE eStore offers: Timing Pulleys, Flat Belt Pulley, Conidrive® Pulleys, Grooved Idler Pulleys, Step Cone Pulleys, Plastic Pulleys,
See Stock Drive Products/Sterling Instrument - SDP/SI Profile & Catalog
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Part Numbers for Timing Pulley Flanges

Part # Distributor Manufacturer Product Category Description
HTDP-36/S-01 Amazon Small Parts Industrial & Scientific Lexan Polycarbonate 3mm Pitch Timing Belt Pulley 33.6mm Dia. 6mm B, Single Flange, 9mm W Belt
HTDP-17/S-01 Amazon Small Parts Industrial & Scientific Lexan Polycarbonate 3mm Pitch Timing Belt Pulley 15.4mm Dia. 4mm B, Single Flange, 9mm W Belt
HTDP-72/D-01 Amazon Small Parts Industrial & Scientific Lexan Polycarbonate 3mm Pitch Timing Belt Pulley 68mm Dia. 8mm B, Double Flange, 9mm W Belt
HTDP-22/S-01 Amazon Small Parts Industrial & Scientific Lexan Polycarbonate 3mm Pitch Timing Belt Pulley 20.2mm Dia. 4mm B, Single Flange, 9mm W Belt
HTDP-20/S-01 Amazon Small Parts Industrial & Scientific Lexan Polycarbonate 3mm Pitch Timing Belt Pulley 18.3mm Dia. 4mm B, Single Flange, 9mm W Belt

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