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by Martin

Martin Worm Gear, 14.5 Degree Pressure Angle, Cast Iron, Inch

Available in multiple versions

4.8 out of 5 stars 3 customer reviews

Price: $56.94 - $158.32
Product Specifications
Brand Name Martin
Part Number Martin-Gear-Parent-8
Material Type Cast Iron
System of Measurement Inch
Bore Diameter Tolerance + .001 - .000  inches
Face Width Unk  inches
Number of Teeth 0
Number of Items 1
UNSPSC Code 31171712

Currently showing 1-8 of 8
ASIN
The Amazon Standard Item Number (ASIN) uniquely identifies the item in the Amazon catalog.
Pitch Diameter String Outside Diameter Bore Diameter Price Quantity
   
B004BDOEF4 1.5 inches 1.687 inches 1/2 inches
$56.94
B004BDOEFE 1.667 inches 1.853 inches 1/2 inches
$58.34
B004BDOEFO 2.5 inches 2.687 inches 1/2 inches
$64.73
B004BDOEG8 3.333 inches 3.52 inches 5/8 inches
$74.13
B004BDOEHM 4.166 inches 4.353 inches 5/8 inches
$91.10
B004BDOEI6 5 inches 5.187 inches 5/8 inches
$104.63
B004BDOEIQ 6.666 inches 6.853 inches 5/8 inches
$121.89
B004BDOEJ0 8.333 inches 8.52 inches 3/4 inches
$158.32
Currently showing 1-8 of 8
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Product Features

  • Right-hand, single-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

Product Details

  • Shipping Information: View shipping rates and policies
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B0051V96FS
  • Average Customer Review: 4.8 out of 5 stars  See all reviews (3 customer reviews)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

Product Description

This Martin worm gear is a right-hand, single-thread gear 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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Customer Reviews

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Top Customer Reviews

By R. Mahood on October 5, 2012
Bore Diameter: 1/2Face Width: 0.500Pitch Diameter String: 1.667Number of Teeth: 20Outside Diameter: 1.853 Verified Purchase
Gears are not sexy. This is a replacement for the equivalent bronze version of the gear that failed in a RV slide-out drive unit, costing me over $2500 in inferior replacement drives so far. $2500 for a bad material selection. I am going to rebuild the original drive to keep as a back-up using this iron gear. Have to do some machine work, and hopefully the iron gear will work out OK. Four stars for the uncertainty factor, but it is an attractive gear (but not sexy). Accurate description, fair price, fast delivery.
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Bore Diameter: 1/2Face Width: 0.500Pitch Diameter String: 1.667Number of Teeth: 20Outside Diameter: 1.853 Verified Purchase
good item, fast shipping
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By Gayle on February 8, 2016
Bore Diameter: 1/2Face Width: 0.500Pitch Diameter String: 1.667Number of Teeth: 20Outside Diameter: 1.853
This item replaced the original with no problem!
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