Martin Roller Chain Sprocket, Reboreable, Type A Hub, Single Strand, 08B Chain Size, 12.7mm Pitch, 17 Teeth, 10mm Bore Dia., 75.56mm OD, 7.37mm Width

The Martin metric type A sprocket is suitable for use with series ISO 08B-1/metric 40 chain with 12.70 mm (0.500”) pitch. Varying numbers of teeth, pitch diameter, and stock bore size offer application flexibility. Made from high carbon steel, it has high strength and durability.The chain data for this class of sprockets is BS 228/7, ISO 08B-1; pitch is 12.70 mm (0.500”); roller diameter is 8.51 mm (0.335”); roller width is 7.75 mm (0.305”); and tensile strength is 1,820 kg (4,000 lbs.).The options for this class of sprocket are: number of teeth from 10 to 24; pitch diameter from 49.07 mm to 460.91 mm; stock bore size of 10 mm to 24 mm; and approximate weight from 0.08 kg to 6.54 kg. The tooth width is 7.37 mm (0.290”) nominal. 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 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, founded in 1951, manufactures power transmission and conveying products using machining, fabrication, forging, casting, plastic injection molding, and powered metal technology. It has facilities throughout the U.S., as well as in Canada, Mexico, China, and Brazil.

• For use with 08B-1 chain, 12.70 mm pitch, meets ISO metric standards
• Type A sprocket offers flexibility in mounting arrangements
• Shaft diameter size from 10 to 24 mm for a variety of applications
• Can be used with large-diameter shafts, and drilled for mounting or welded directly to other apparatuses
• High carbon steel for strength and durability