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Boston Gear Spur Gear, 14.5 Pressure Angle, Cast Iron, Inch, 8 Pitch

Available in multiple versions

Price: $100.82 - $363.51
Product Specifications
Brand Name Boston Gear
Material Type Cast Iron
Bore Diameter Tolerance +/-0.0005  inches
Face Width 1.250  inches
Pitch 8
UNSPSC Code 31171707

The Boston Gear cast iron spur gear with 14.5-degree pressure angle (PA) an... See more product details

Currently showing 1-18 of 18
Pitch Diameter String Outside Diameter Bore Diameter Number of Teeth Part Number
The Amazon Standard Item Number (ASIN) uniquely identifies the item in the Amazon catalog.
Price Quantity
8 inches 4.750 inches 1.000 inches 36 B004N63392
8 inches 5.250 inches 1.000 inches 40 B004N6339C
8 inches 5.500 inches 1.000 inches 42 B004N6339M
8 inches 5.750 inches 1.000 inches 44 B004N6339W
8 inches 6.250 inches 1.000 inches 48 B004N633A6
8 inches 7.000 inches 1.000 inches 54 B004N633AG
8 inches 7.250 inches 1.000 inches 56 B004N633AQ
8 inches 7.750 inches 1.000 inches 60 B004N633B0
8 inches 8.250 inches 1.000 inches 64 B004N633BA
8 inches 9.250 inches 1.000 inches 72 B004N633BK
8 inches 10.250 inches 1.250 inches 80 B004N633BU
8 inches 10.750 inches 1.250 inches 84 B004N633C4
8 inches 11.250 inches 1.250 inches 88 B004N633CE
8 inches 12.250 inches 1.250 inches 96 B004N633CO
8 inches 14.250 inches 1.250 inches 112 B004N633CY
8 inches 15.250 inches 1.250 inches 120 B004N633D8
8 inches 16.250 inches 1.250 inches 128 B004N633DI
8 inches 18.250 inches 1.250 inches 144 B004N633DS
Currently showing 1-18 of 18
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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
  • Cast iron for compressive strength and resistance to wear

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: B007NO5POC
  • Product Warranty: For warranty information about this product, please click here

Product Description

The Boston Gear cast iron 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 cast iron for compressive strength and resistance to wear. 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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