The Martin type B sprocket is suitable for use with the series 40 chain with 1/2” pitch for driver or driven sprocket applications. Varying numbers of teeth, hub sizes, pitch diameters, and stock bore sizes offer application flexibility. Made from high carbon steel, it has high strength and durability.
Type B sprockets have a hub extension on one side to provide stability, and concede for the use of full-depth keyways and ordinary setscrews to attach the sprocket. They may likewise accommodate a wide range of shafts.
The choices for this class of sprocket are: number of teeth from 8 to 112; outside diameter from 1.510” to 18.120”; stock bore size from 1/2” to 1.00”; greatest or most complete or best possible bore size from 1/2” to 2-3/4”; hub diameter from 63/64” to 4.00”; length through bore from 7/8” to 1-1/4”; and approximate weight from 0.18 lbs to 22.56 lbs. The tooth width is 0.284” nominal. Hubs with a diameter of 1-9/16” or littler have a recessed groove for chain clearance. Maximum bores will accommodate popular keyseat and setscrew over keyseat. Slightly more prominent bores are possible with no keyseat, shoal keyseat, or setscrew at angle to keyseat. 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 may be applied to transmit power around a corner, based on how they fit together. Sprockets with chains only work in straight lines. Some mutual gains of chain-drive schemes include minimal slippage, a fixed proportionality among rotating shafts, and skillfulness with galore dissimilar chain affixations and sprocket material selections. An example of a power transmission system is a ordinary 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.
