English roller chain and sprockets are categorized according to ANSI B 29.1M. The number can be used to identify pitch in the following way: the first digits identify the pitch in 1/8" increments, and the last digit is 0 for standard proportions, 1 for lightweight chain, and 5 for rollerless bushed chain. A #41 sprocket is therefore for 1/2"-pitch lightweight chain, a #120 sprocket is for 1-1/2" pitch chain, etc.
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Material selection is dependent on factors such as required power transmission and speed, environmental factors such as temperature and exposure to corrosive elements, and other factors such as noise generation. Consult with a sprocket manufacturer on a specific application to optimize material selection.
Teeth, web, and hub are all plastic; used where component weight is a design consideration, for quiet running, and in light-to medium duty applications.
Plastic teeth allow for lightness and corrosion resistance. Metal is used for the hub or hub insert to allow closer tolerance fit onto shafts, press-on applications, etc.
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.
Steel may be hardened in a number of ways, including a variety of quenching techniques in oil and water, being passed through induction chambers, etc. Quickly cooling steel during processing freezes, traps and packs the carbon atoms inside the shrunken iron crystals, thereby producing a very hard and brittle metal. Although very hard, it is less resistant to shock or impact.
Stainless steel refers to a broad family of steels that is chemical and corrosion resistant; is typically not hardened or hardenable to the same extent as standard carbon steels.
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.
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.
Idler Sprockets rotate freely while taking up slack and providing tension to a chain drive system. They are used as tensioners and occasionally to provide chain clearance around a machine component.
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matches as specified. Products with optional attributes
will be returned for either choice.
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Detachable bolt-on hub; suitable for removing for frequent sprocket changes, maintenance, etc.
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Shear pin provides protection against drive system jamming or overload. Torque is carried by shear pin, which is necked to shear when safe load is exceeded.
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Proprietary or specialized shaft attachment design.
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Environment
Full required range of operating temperature.
The temperature range over which the device must operate.
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User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
