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  • Martin Spur Gear, 14.5° Pressure Angle, High Carbon Steel, Inch, 8 Pitch
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Martin Spur Gear, 14.5° Pressure Angle, High Carbon Steel, Inch, 8 Pitch

Available in multiple versions

1 customer review

Price: $8.85 - $166.84
Product Specifications
Brand Name Martin
Material Type High Carbon Steel
Bore Diameter Tolerance + 0.001 - 0.000  inches
Face Width 1.250  inches
Pitch 8
UNSPSC Code 31171707

The Martin high carbon steel spur gear with 14.5-degree pressure angle (PA)... Read full product description


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Pitch Diameter String Outside Diameter Bore Diameter Number of Teeth Part Number
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8 inches 1.75 inches 3/4 inches 11 B004BDO044
In Stock (2)
$12.72
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8 inches 1.75 inches 3/4 inches 12 B004BDO04O
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$42.35
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8 inches 1.875 inches 3/4 inches 13 B004BDO058
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$45.15
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8 inches 2 inches 3/4 inches 14 B004BDO05S
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$8.85
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8 inches 2.125 inches 7/8 inches 15 B004BDO06C
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$20.98
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8 inches 2.25 inches 7/8 inches 16 B004BDO06W
Usually ships in 2 to 5 weeks
$55.15
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8 inches 2.375 inches 7/8 inches 17 B004BDO07G
In Stock (1)
$55.94
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8 inches 2.5 inches 7/8 inches 18 B004BDO080
In Stock (1)
$59.14
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8 inches 2.625 inches 7/8 inches 19 B004BDO08A
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$60.94
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8 inches 2.75 inches 7/8 inches 20 B004BDO08U
In Stock (2)
$63.30
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8 inches 2.875 inches 7/8 inches 21 B004BDO094
In Stock (1)
$67.93
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8 inches 3 inches 7/8 inches 22 B004BDO09O
In Stock (1)
$73.72
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8 inches 3.25 inches 7/8 inches 24 B004BDO0A8
Usually ships in 2 to 5 weeks
$86.51
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8 inches 3.5 inches 7/8 inches 26 B004BDO0AS
In Stock (1)
$100.09
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8 inches 3.75 inches 7/8 inches 28 B004BDO0BC
In Stock (2)
$17.11
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8 inches 4 inches 7/8 inches 30 B004BDO0BW
In Stock (1)
$113.88
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8 inches 4.25 inches 1 inches 32 B004BDO0CG
Usually ships in 2 to 5 weeks
$118.27
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8 inches 4.75 inches 1 inches 36 B004BDO0CQ
In Stock (1)
$127.32
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8 inches 5.25 inches 1 inches 40 B004BDO0DA
Usually ships in 2 to 5 weeks
$140.25
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8 inches 5.5 inches 1 inches 42 B004BDO0DU
In Stock (1)
$144.82
Prime Eligible
Currently showing 1-20 of 37 Next »
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Product Features

  • Transmits torque between parallel shafts to provide rotational power to another part of a motorized system
  • Pressure angle of 14.5 degrees for a higher contact ratio between gears, resulting in quieter operation than larger pressure angles
  • Diametral pitch of 8 for applications where transferring torque is more important than controlling changes in speed and direction of rotation with precision
  • High carbon steel for tensile strength and hardness

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: B007NO5VLY
  • Average Customer Review: 5.0 out of 5 stars  See all reviews (1 customer review)
  • Product Warranty: For warranty information about this product, please click here

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Product Description

The Martin high carbon steel spur gear with 14.5-degree pressure angle (PA) and a diametral pitch (DP) of 8 transmits torque between parallel shafts to provide rotational power to another part of a motorized system. It has a 14.5-degree pressure angle for a higher contact ratio between gears than larger pressure angles, resulting in quieter operation, and a 8-diametral pitch for applications where transferring torque is more important than having precise control over motion, such as starting, stopping, and changing speed or rotational direction. This spur gear, which can mesh only with spur gears that have the same pressure angle and diametral pitch, is made of high carbon steel for tensile strength and hardness. This Martin spur gear is suitable for use in a variety of commercial and industrial applications, such as construction equipment, aeronautics, conveyors, and manufacturing equipment, among others.

Spur gears, the most common gear type, have a circular or cylindrical shape with teeth bordering the outer perimeter and are used for transmitting rotational torque and motion between parallel rotating shafts. A spur gear's pressure angle (PA), diametral pitch (also called DP or pitch), and its material are important factors to consider when purchasing. Gears come in several types for use in different power transmission configurations and for different applications, including bevel and miter gears (for rotating shafts perpendicular to each other), change gears (to increase or decrease torque and speed), helical gears (for high rates of rotational speed), internal gears (where one gear is nested inside the other), rack and pinion gears (for turning rotational motion into linear motion), and worm gears (for perpendicular shafts in tight spaces and quiet operation). Gears are suitable for use in the agriculture, automotive, construction, mining, and packaging industries, and can be found in a variety of machines, including bicycles, automobiles, and elevators, among others.

Martin Sprocket & Gear manufactures power transmission and conveying products. The company was founded in 1951 and is headquartered in Arlington, TX. Martin provides tools that meet American National Standards Institute (ANSI), National Aerospace Standard (NAS), and Deutsches Institut für Normung (DIN) standards.


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Most Helpful Customer Reviews

By Lfowler on July 23, 2015
Bore Diameter: 7/8Face Width: 1.250Pitch Diameter: 8Number of Teeth: 24Outside Diameter: 3.25 Verified Purchase
Great Product -
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