Martin Roller Chain Sprocket, Hardened Teeth, Bored-to-Size, Type B Hub, Sing...

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Product Overview

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 50 chain with 5/8” 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 24;
outside diameter from 2.09 to 5.12”; length through bore from 1.00 to 1-1/4”;
and approximate weight from 0.30 to 4.00 lb. The chain row width is 0.343”
nominal. The keyway is on the centerline of the tooth. The following
exceptions are present: the 10-tooth option with 1.00” shaft size has the
setscrews positioned at 90 and 180 degrees to the keyway. 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. The company was founded in 1951 and
is headquartered in Arlington, TX. Martin provides tools that meet American
National Standards Institute (ANSI), National Aerospace Standard (NAS), and
Deutsches Institut für Normung (DIN) standards.