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Martin Roller Chain Sprocket, Hardened Teeth, Bored-to-Size, Type B Hub, Single Strand, 40 Chain Size, 0.5" Pitch, 18 Teeth, 1.125" Bore Dia., 3.136" OD, 2.3125" Hub Dia., 0.284" Width
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*Price and Stocks may change without prior notice
*Packaging of actual item may differ from photo shown
- Electrical items MAY be 110 volts.
- 7 Day Return Policy
- All products are genuine and original
About Martin Roller Chain Sprocket, Hardened
The Martin type BS sprocket, also known as a bored-to-size sprocket, with hardened teeth, includes two setscrews and a keyway, and is suitable for use with the series 40 chain with 1/2” pitch. This sprocket has been adapted for installation on the shaft without additional components. Made from high carbon steel, it has high strength and durability. Type BS sprockets have a hub extension on one side to provide stability and allow for the use of a full-depth keyway and two standard setscrews to attach the sprocket onto a shaft. The options for this class of sprocket are: number of teeth from 9 to 30; outside diameter from 1.670 to 5.060”; length through bore from 7/8 to 1.00”; and approximate weight from 0.16 to 2.70 lb. The chain row width is 0.284” nominal. The keyway is on the centerline of the tooth. The following exceptions are present: the 9- through 15-tooth option with 1/2” shaft have no keyway and use two (2) 1/4” setscrews at 90 degrees to each other. With this series of sprockets, the hub diameters will vary to suit different bore sizes. All Martin sprockets meet or exceed ANSI standards. A sprocket is a wheel with teeth around the perimeter that meshes with a chain, track, or other perforated or indented material. Unlike gears that mesh with another gear, sprockets mesh with a chain, which then interacts with another sprocket. Gears can be used to transmit power around a corner, based on how they fit together. Sprockets with chains only work in straight lines. Some common benefits of chain-drive systems include minimal slippage, a fixed ratio between rotating shafts, and versatility with many different chain attachments and sprocket material selections. An example of a power transmission system is a standard bicycle, which has a sprocket and a chain to deliver power from the rider’s legs to the wheels making the bike move. Martin Sprocket & Gear manufactures power transmission and conveying products.
