roller chain sprocket

Product features
For use with 80-2 chain, 1" pitch for driver or driven sprocket applications
Dual type B sprocket offers a stable and protected attachment to the shaft, and may be modified to match a wide variety of applications requiring two chains
Shaft diameter options range from 1 to 1-1/2" for a variety of applications
Varying amounts of teeth and pitch diameter sizes offer application flexibility
High carbon steel for strength and durability
Product description
The sprockets Martin dual, also called a duplex, type B sprocket is ideal for use with the series 80-2 chain with 1” pitch for driver or driven sprocket applications. Varying amounts of tooth and pitch diameters provide application flexibility. Made from high carbon steel, it has high durability and strength. Multiple chain capability permits more power at higher operational speeds with better load capacity.

Type B sprockets have a hub extension using one side to supply stability, and invite for the use of full-depth keyways and regular setscrews to add the sprocket. They can also accommodate an array of shafts. The double style accepts two chains side-by-side.

The options for this class of sprocket are: number of teeth from 10 to 95; outside diameter from 3.680 to 30.830”; stock bore size from 1 to 1-1/2”; maximum bore size from 1-1/2 to 4”; hub diameter from 2-9/16 to 6”; size through bore from 2-3/4 to 4-1/4”; and approximate weight from 3.6 to 165 lb. The face width (not including the hub) is 1.710”. The chain row thickness is 0.557” nominal. Hubs with a diameter size of 2-9/16” possess a recessed groove for chain clearance. Maximum bores will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. All Martin sprockets fulfill or exceed ANSI criteria.

A sprocket is a wheel with teeth around the perimeter that meshes with a chain, track, or various other perforated or indented materials. Unlike gears that mesh with another equipment, sprockets mesh with a chain, which then interacts with another sprocket. Gears can be utilized to transmit power around a part, based on how they fit collectively. Sprockets with chains just work in straight lines. Some common benefits of chain-drive systems include minimal slippage, a set ratio between rotating shafts, and versatility with many different chain attachments and sprocket material selections. A good 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 & Equipment manufactures power tranny and conveying products. The company was founded in 1951 and can be headquartered in Arlington, TX. Martin provides equipment that meet American National Standards Institute (ANSI), National Aerospace Regular (NAS), and Deutsches Institut für Normung (DIN) standards.

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