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

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

Available in multiple versions

2 customer reviews

Price: $35.70 - $149.37
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

This Martin worm gear is a right-hand, single-thread gear for a worm drive ... Read full product description


Currently showing 1-8 of 8
Pitch Diameter Outside Diameter Bore Diameter Part Number Price Quantity
   
1.5 inches 1.687 inches 1/2 inches B004BDOEF4
In Stock (7)
$45.44
Prime Eligible
1.667 inches 1.853 inches 1/2 inches B004BDOEFE
In Stock (2)
$59.89
Prime Eligible
2.5 inches 2.687 inches 1/2 inches B004BDOEFO
In Stock (2)
$47.78
Prime Eligible
3.333 inches 3.52 inches 5/8 inches B004BDOEG8
In Stock (1)
$75.40
Prime Eligible
4.166 inches 4.353 inches 5/8 inches B004BDOEHM
In Stock (2)
$91.83
Prime Eligible
5 inches 5.187 inches 5/8 inches B004BDOEI6
In Stock (2)
$100.10
Prime Eligible
6.666 inches 6.853 inches 5/8 inches B004BDOEIQ
In Stock (2)
$116.07
Prime Eligible
8.333 inches 8.52 inches 3/4 inches B004BDOEJ0
In Stock (2)
$149.37
Prime Eligible
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: 4.5 out of 5 stars  See all reviews (2 customer reviews)
  • Product Warranty: For warranty information about this product, please click here

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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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Most Helpful Customer Reviews

By Ellen Cantwell on June 20, 2015
Bore Diameter: 1/2Face Width: 0.500Pitch Diameter: 1.667Number of Teeth: 20Outside Diameter: 1.853 Verified Purchase
good item, fast shipping
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0 of 2 people found the following review helpful By R. Mahood on October 5, 2012
Bore Diameter: 1/2Face Width: 0.500Pitch Diameter: 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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