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Boston Gear Spur Gear, 14.5 Degree Pressure Angle, Steel, Inch, 12 Pitch

Available in multiple versions

4.3 out of 5 stars 5 customer reviews

Price: $9.74 - $95.92
Product Specifications
Brand Name Boston Gear
Material Type Steel
Face Width 0.750  inches
Pitch 12
UNSPSC Code 31171707

Currently showing 1-20 of 23 Next »
ASIN
The Amazon Standard Item Number (ASIN) uniquely identifies the item in the Amazon catalog.
Pitch Diameter String Outside Diameter Bore Diameter Number of Teeth Price Quantity
   
B000LDCXX8 12 inches 2.667 inches 0.625 inches 30
$36.30
B000LES6GA 12 inches 2.834 inches 0.625 inches 32
$32.58
B000LESGZ6 12 inches 1.834 inches 0.625 inches 20
$21.68
B000LEWS96 12 inches 1.500 inches 0.625 inches 16
$33.71
B004N632BG 12 inches 1.167 inches 0.500 inches 11
$23.35
B004N632C0 12 inches 1.250 inches 0.500 inches 13
$28.00
B004N632CA 12 inches 1.417 inches 0.625 inches 15
$22.60
B004N632CU 12 inches 1.917 inches 0.625 inches 21
$35.55
B004N632XY 12 inches 3.167 inches 0.625 inches 36
$41.70
B004N632Y8 12 inches 3.5 inches 0.625 inches 40
$43.80
B004N632YI 12 inches 3.667 inches 0.625 inches 42
$45.20
B004N6348W 12 inches 1.417 inches 0.630 inches 15
$15.57
B004N63496 12 inches 1.500 inches 0.630 inches 16
$31.10
B004N6349Q 12 inches 1.834 inches 0.630 inches 20
$35.20
B004N634A0 12 inches 1.834 inches 0.750 inches 20
$35.20
B004N634AK 12 inches 1.917 inches 0.750 inches 21
$38.00
B004N634AU 12 inches 1.917 inches 0.875 inches 21
$38.00
B004N634BE 12 inches 2.000 inches 0.750 inches 22
$42.10
B004N634BY 12 inches 2.000 inches 1.000 inches 22
$42.10
B004N634CI 12 inches 2.167 inches 0.750 inches 24
$44.60
Currently showing 1-20 of 23 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 12 for applications requiring a balance between transferring torque and controlling changes in speed and direction of rotation with precision
  • Low carbon steel (.2 percent carbon) for applications where the hardness and strength of higher levels of carbon are not needed to transmit torque and motion

Product Description

The Boston Gear low carbon steel spur gear with 14.5-degree pressure angle (PA) and a diametral pitch (DP) of 12 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 12-diametral pitch for applications requiring a balance between transferring torque and controlling changes in speed and direction of rotation with precision. This spur gear, which can mesh only with spur gears that have the same pressure angle and diametral pitch, is made of low carbon steel (.2 percent carbon) for applications where the hardness and strength of higher levels of carbon are not needed to transmit torque and motion. This Boston Gear 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.

Boston Gear manufactures a variety of gear drives, variable speed drives, clutches, and the components that comprise these systems including sprockets and bearings. Their manufacturing designs, production, and inspection meet International Organization for Standardization (ISO) standards for quality assurance. The company, founded in 1877, is headquartered in Charlotte, NC.


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: B007NO69MO
  • Average Customer Review: 4.3 out of 5 stars  See all reviews (5 customer reviews)
  • Product Warranty: For warranty information about this product, please click here

Customer Questions & Answers

Customer Reviews

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Top Customer Reviews

By Jo Ann Hayden on May 2, 2016
Bore Diameter: 0.625Face Width: 0.750Pitch Diameter String: 12Number of Teeth: 30Outside Diameter: 2.667 Verified Purchase
Again, this item was requested by my husband. Have no idea what it was used for. He loves to build and invent and when he says he needs these things I have him bring the items up and I order them.
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Bore Diameter: 0.625Face Width: 0.750Pitch Diameter String: 12Number of Teeth: 16Outside Diameter: 1.500 Verified Purchase
The part is not as pictured or described. It did not have the groove
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Bore Diameter: 0.625Face Width: 0.750Pitch Diameter String: 12Number of Teeth: 15Outside Diameter: 1.417 Verified Purchase
Accurately machined. Worked well meshing with other gears.
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Superior quality, excellent craftsmanship
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Bore Diameter: 0.625Face Width: 0.750Pitch Diameter String: 12Number of Teeth: 42Outside Diameter: 3.667 Verified Purchase
Exactly what I needed good to deal with
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