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Boston Gear Roller Chain Sprocket, Bored-to-Size, Type B Hub, Single Strand

Available in multiple versions

Price: $17.40 - $26.57
Product Specifications
Brand Name Boston Gear
Hub Style Type B
Shaft Mounting N/A
Additional Features Single Strand
Style Name Bored-to-Size
UNSPSC Code 31171901

Currently showing 1-11 of 11
The Amazon Standard Item Number (ASIN) uniquely identifies the item in the Amazon catalog.
Pitch Number of Teeth Bushing Type Bore Diameter Outside Diameter Hub Diameter Price Quantity
B004NYA5PE 0.663 inches 14 N/A 0.188 inches 0.715 inches 0.375 inches
B004NYA5PO 0.709 inches 15 N/A 0.188 inches 0.761 inches 0.5 inches
B004NYA5PY 0.756 inches 16 N/A 0.188 inches 0.808 inches 0.5 inches
B004NYA5QI 0.803 inches 17 N/A 0.188 inches 0.855 inches 0.5 inches
B004NYA5QS 0.849 inches 18 N/A 0.188 inches 0.901 inches 0.5 inches
B004NYA5R2 0.89 inches 19 N/A 0.188 inches 0.948 inches 0.5 inches
B004NYA5RC 0.943 inches 20 N/A 0.188 inches 0.995 inches 0.5 inches
B004NYA5SQ 1.177 inches 25 N/A 0.25 inches 1.228 inches 0.625 inches
B004NYA5TA 1.27 inches 27 N/A 0.25 inches 1.322 inches 0.625 inches
B004NYA5WM 1.88 inches 40 N/A 0.25 inches 1.922 inches 0.625 inches
B004NYA5XG 2.443 inches 52 N/A 0.25 inches 2.495 inches 0.625 inches
Currently showing 1-11 of 11
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Product Features

  • Single strand sprocket with one set of teeth around the circumference for applications where a single chain can support the torque and load
  • Sprocket teeth help prevent slipping and binding to avoid power loss in assemblies
  • Pre-bored to a specific bore diameter
  • Type B sprocket with a hub projection on one side to accommodate various types of bushings to help prevent sprocket from slipping on the shaft
  • Plastic for food handling applications or where high moisture, contaminants, or corrosives are present

Product Description

This Boston Gear roller chain sprocket is single strand with one set of teeth around its circumference for use with single strand chains. The teeth of the sprocket help prevent slipping and binding to avoid power loss in assemblies. It is a Type B sprocket with a hub projection encircling the bore on one side, and the bore is pre-bored to a specific diameter to fit a shaft of that size. This sprocket is made of plastic for food handling applications or where high moisture, contaminants, or corrosives are present. It meets International Organization for Standardization (ISO) 9001 for quality assurance. This single strand roller chain sprocket is suitable for use in a broad range of applications involving light to moderate loads and ongoing, high-cycle operations, including vehicle transmission systems, construction and agricultural equipment, conveyors, and factory manufacturing and assembly lines, among others.

A roller chain sprocket is a thin wheel with deep, uniformly spaced teeth ringing its circumference. The distance from the peak of one tooth to the next is called the pitch, and is commonly measured in 1/8-inch increments. The sprocket transfers power and motion by a roller chain that is threaded over the teeth of the sprocket. The alignment of the chain with the sprocket's pitch prevents the chain from slipping so that no power is lost. In the center of the sprocket is the bore (hole) for sliding the sprocket onto a shaft, and a bushing or bearing is often fitted to the sprocket’s hub to custom-fit the sprocket onto a shaft to hold it firmly in place. A hub is a protruding, raised lip encircling the bore of the sprocket. Sprockets with hubs on both sides are Type C, sprockets with hubs on one side are Type B, and sprockets with no hubs are Type A sprockets. For applications requiring sprockets to be swapped onto shafts of different diameters, a sprocket with a bore large enough to fit all shafts can be used, with the gap between the bore and shaft closed with a bushing or bearing. Roller chain sprockets are used in a broad range of applications where the drive power of an engine needs to be transferred into motion, such as in motor vehicles, conveyors, escalators, agricultural, forestry and mining equipment, aeronautics, robotics and space exploration, among others.

Boston Gear manufactures a variety of gear drives, variable speed drives, clutches, and the components that comprise these systems including sprockets and bearings. Their manufacturing designs, production, and inspection meet International Organization for Standardization (ISO) standards for quality assurance. The company, founded in 1877, is headquartered in Charlotte, NC.

Product Details

  • Shipping Information: View shipping rates and policies
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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