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  • Boston Gear Spur Gear, 14.5 Pressure Angle, Steel, Inch, 4 Pitch
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Boston Gear Spur Gear, 14.5 Pressure Angle, Steel, Inch, 4 Pitch

Available in multiple versions

1 customer review

Price: $28.13 - $168.30
Product Specifications
Brand Name Boston Gear
Material Type Steel
Bore Diameter 1.125  inches
Bore Diameter Tolerance +/-0.0005  inches
Pitch 4
UNSPSC Code 31171707

The Boston Gear low carbon steel spur gear with 14.5-degree pressure angle ... Read full product description


Currently showing 1-8 of 8
Pitch Diameter String Face Width Outside Diameter Number of Teeth Part Number Price Quantity
   
4 inches 4.000 inches 3.500 inches 11 B004N632JS
In Stock (2)
$88.00
Prime Eligible
4 inches 2.000 inches 3.500 inches 12 B004N632K2
In Stock (2)
$103.20
Prime Eligible
4 inches 2.000 inches 4.000 inches 14 B004N632KC
In Stock (2)
$111.70
Prime Eligible
4 inches 2.000 inches 4.250 inches 15 B004N632KM
In Stock (1)
$119.30
Prime Eligible
4 inches 2.000 inches 4.500 inches 16 B004N632KW
In Stock (3)
$58.91
Prime Eligible
4 inches 2.000 inches 5.000 inches 18 B004N632LG
In Stock (2)
$28.13
Prime Eligible
4 inches 2.000 inches 5.500 inches 20 B004N632LQ
In Stock (1)
$168.30
Prime Eligible
4 inches 2.000 inches 6.000 inches 22 B004N632M0
In Stock (2)
$41.49
Prime Eligible
Currently showing 1-8 of 8
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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 4 for applications where transferring torque is more important than 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 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: B007NO57VI
  • Average Customer Review: 5.0 out of 5 stars  See all reviews (1 customer review)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Product Description

The Boston Gear low carbon steel spur gear with 14.5-degree pressure angle (PA) and a diametral pitch (DP) of 4 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 4-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 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.


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Most Helpful Customer Reviews

By Ralph on December 24, 2012
Bore Diameter: 1.125Face Width: 2.000Pitch Diameter String: 4Number of Teeth: 14Outside Diameter: 4.000 Verified Purchase
I was looking for this gear and this gear only. It was for a Railroad Tie Crane Application and it worked.
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