Help with Timing Pulleys (inch) specifications:
Component Type
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| Component Type | |||
| Your choices are... | |||
| Timing Pulley | Timing pulleys mesh with same-pitch timing belts. | ||
| Timing Pulley Stock | Rod with pulley grooves already furnished for custom width fabrication. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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ANSI Pitch
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| ANSI Pitch | |||
| Your choices are... | |||
| 0.080" (MXL) | Miniature extra light duty. | ||
| 0.0816" (40 DP) | Somewhat archaic miniature pitch based on using a 40 DP gear as a drive pulley. | ||
| 0.200" (XL) | Extra light duty. | ||
| 0.375" (L) | Light duty. | ||
| 0.500" (H) | Heavy duty. | ||
| 0.875" (XH) | Extra heavy duty. | ||
| 1.250" (XXH) | Very heavy duty. | ||
| Other ANSI Pitch | Select for Imperial pitch not listed above. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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Specifications
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| Number of Teeth | Number of teeth determines the size of the pulley and the speed ratio of a pulley system. | ||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
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| Belt Width: | Pulleys are designed to run with certain specified belt widths. With a belt selected, you can search for a pulley based on the belt width of the drive system. | ||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
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| Length (Pulley Stock Only): | Pulley stock comes in continuously grooved lengths and may be machined for custom pulley width or special shaft attachment. | ||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
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| Bore Diameter (if applicable): | The diameter of the center bore, typically for mounting onto a cylindrical shaft. | ||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
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| Length Through Bore (if applicable): | Overall width of pulley, including any hub(s). | ||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
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| Hub Diameter: | Outside diameter of the desired hub. | ||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
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Pulley Material
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| Metal: | |||
| Your choices are... | |||
| Aluminum | A bluish, silver-white, malleable, ductile, and light trivalent metallic element that has good electrical and thermal conductivity, high reflectivity, and resistance to oxidation. | ||
| Steel | A commercial iron that contains carbon in any amount up to about 1.7 percent as an essential alloying constituent. It is malleable when under suitable conditions, and is distinguished from cast iron by its malleability and lower carbon content. | ||
| Other Metal | Any unlisted, proprietary or specialized metal. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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| Plastic: | |||
| Your choices are... | |||
| Acetal | Acetal polymers are semi-crystalline. They offer excellent inherent lubricity, fatigue resistance, and chemical resistance. | ||
| Nylon | Nylon, comprising several grades of polyamides, is a general purpose material in wide use; it is tough and resistant and has good pressure ratings. | ||
| Polycarbonate | Polycarbonate is an amorphous material with excellent Impact Strength, clarity, and optical properties. Polycarbonate has excellent mechanical properties, and can be molded to tight tolerances. | ||
| Other Plastic | Any unlisted, proprietary or specialized plastic. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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| Combination: | Timing pulleys come in a wide variety of metal and plastic materials. Many factors such as cost, environmental conditions, noise and heat generation and design horsepower transmission influence the best material choice. Consult a pulley manufacturer on a specific application for material optimization. | ||
| Your choices are... | |||
| Plastic Teeth with Metal Insert | Pulley is designed with plastic teeth attached to a metal bore insert. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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Mounting and Features
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| Hub on Pulley | A hub is a cylindrical projection from one or both sides of the pulley, typically for the provision of a shaft attachment mechanism such as a set screw. Hubless pulleys may be pressed or adhered onto a shaft, or sometimes include a set screw whose thread is tapped into the pulley grooves. | ||
| Search Logic: | "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice. | ||
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| V-groove | The pulley has a V-groove that is used to guide a belt manufactured with a mating V design. | ||
| Search Logic: | "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice. | ||
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| Zero Backlash | Pulley is configured to minimize or eliminate backlash. | ||
| Search Logic: | "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice. | ||
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| Shaft Mounting | |||
| Your choices are... | |||
| Set Screw | Screws tighten directly onto shaft for pulley attachment. | ||
| Hub Clamping Screw | Pulley is attached via a screw that squeezes the inner diameter of the hub to a tight fit around the shaft. | ||
| Simple Bore | Pulleys without screws are typically designed for press-fit or adhesive mounting. | ||
| Other Shaft Mounting | Proprietary or specialized shaft attachment design. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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| Flanges | Synchronous belt systems typically have some side forces and often require some flanging to keep the belt from slipping off the pulleys. Consult a pulley manufacturer to optimize flange design. | ||
| Your choices are... | |||
| No Flanges | The pulley has no flanges. | ||
| One Flange | The pulley has one flange. | ||
| Two Flanges | The pulley has two flanges. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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