Martin W1020D Worm Gear, 14.5° Pressure Angle, Cast Iron, Inch, 0.625" Face, 7/8" Bore Diameter, 2" Pitch Diameter, 2.224" Outer Diameter, 20 Teeth

Right-hand, double-thread gear for a worm drive

ASTM A48 Class 30 gray cast iron for resistance to wear, galling, and corrosion

Pressure angle of 14.5 degrees for smoother, quieter movement and lower frictional forces

Meets AGMA commercial class standards

Retail Price: $ 35.68

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Martin W1020D Worm Gear, 14.5° Pressure Angle, Cast Iron, Inch, 0.625" Face, 7/8" Bore Diameter, 2" Pitch Diameter, 2.224" Outer Diameter, 20 Teeth

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This Martin worm gear is a right-hand, double-thread gear with a 10 diametral pitch for a worm drive to increase the torque of a driven shaft. It is made of American Society for Testing and Materials (ASTM) A48 Class 30 gray cast iron for resistance to wear, galling, and corrosion on. It has a pressure angle of 14.5 degrees for smoother, quieter movement and lower frictional forces. This gear meets American Gear Manufacturing Association (AGMA) standards 6-8 for commercial class gears.

Worm gears, also called worm drives, use a long, threaded cylinder called a worm that meshes with the teeth of a worm wheel (similar to a spur gear) to transmit motion. They can be used in a right-angle configuration. The worm wheel is unable to turn the worm, providing a built-in lock or a braking system. They are quieter than spur gears, low maintenance, and suitable in applications that require increased torque and reduced speed, or when changing the rotation direction.

Martin Sprocket & Gear manufactures power transmission products, material handling components, and industrial hand tools. The company, founded in 1951 and headquartered in Arlington, TX, meets International Organization for Standardization (ISO) standard 9001:2008.

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one side must be less than 120cm，otherwise there is additional fee；250cm products can not be accept；

Any side must be less than 60cm，otherwise you will be charged the greater one between real weight and volume weight，more than 120cm will be not accepted.

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