Martin 60B30 60 Chain, 3/4" Pitch, 30 Teeth, 0.75" Bore Sprocket

Key features

• Tolerances meet or exceed ANSI standards
• Manufactured of high carbon steel
• Precise machining and processes ensure consistent finish and high quality
• Bores are concentric to pitch line, minimizing run out

The Martin type B sprocket is suitable for use with the series 60 chain with 3/4” 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 allow for the use of full-depth keyways and standard setscrews to attach the sprocket. They can also accommodate a wide range of shafts. The options for this class of sprocket are: number of teeth from 8 to 112; outside diameter from 2.260” to 27.180”; stock bore size of from 5/8” to 1-1/4”; maximum bore size from 5/8” to 3-3/4”; hub diameter from 1-15/32” to 5-1/2”; length through bore from 1-1/4” to 2-1/4”; and approximate weight from 0.54 lbs to 81.78 lbs. The tooth width is 0.459” nominal. Hubs with a diameter of 2-3/8” or smaller have 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 meet or exceed ANSI standards. A spro

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