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  • Boston Gear G487Y-G Bevel Gear, 2:1 Ratio, 0.313" Bore, 24 Pitch, 48 Teeth, 20 Degree Pressure Angle, Straight Bevel, Keyway, Brass
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Boston Gear G487Y-G Bevel Gear, 2:1 Ratio, 0.313" Bore, 24 Pitch, 48 Teeth, 20 Degree Pressure Angle, Straight Bevel, Keyway, Brass


Price: $50.10 & FREE Shipping. Details
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Specifications for this item
Brand Name Boston Gear
Part Number G487YG
UPC 781711121122
Material Type Brass
Bore Diameter 0.313  inches
Hub Diameter 1.120  inches
Hub Projection 0.310  inches
Pitch 24;pitch
Number of Teeth 48
EAN 0781711121122
Number of Items 1
Outside Diameter 0.507  inches
UNSPSC Code 31171708

This Boston Gear G487Y-G bevel gear is made of brass, has a straight bevel,... Read full product description



Product Features

  • 48 teeth for use with G487Y-P mating bevel gear in 2:1 gear ratio applications
  • Straight bevel 90 degree mesh transmits mechanical power between perpendicular shafts
  • Pressure angle of 20 degrees for a lower contact ratio between gears, resulting in higher load capacity than smaller pressure angles
  • Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
  • Unhardened teeth for applications where hardness and strength are not needed to transmit torque and motion

Product Details

STP [PDF]

Product Description

This Boston Gear G487Y-G bevel gear is made of brass, has a straight bevel, a 24 diametral pitch, 48 teeth, and a keyway to transmit torque between perpendicular shafts to provide rotational power to another part of a motorized system. This bevel gear is intended for use with a G487Y-P bevel pinion gear for applications requiring a 2:1 gear ratio. It has a keyway and setscrew for use with a 0.313" diameter keyed shaft (not included), is made of brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability, and has unhardened teeth for applications where hardness and strength are not needed to transmit torque and motion. The 20 degree pressure angle provides a lower contact ratio between gears than a smaller pressure angle, resulting in higher load capacity. This gear is used only with its mating pinion gear because bevel gears can mesh only with gears that have the same pressure angle, spiral angle, and diametral pitch (that is, the number of teeth per inch). This Boston Gear bevel gear is suitable for use in a variety of commercial and industrial applications, such as construction equipment, aeronautics, conveyors, and manufacturing equipment, among others.

Bevel gears have a blunt-end cone shape with teeth along the cone face and are used for transmitting torque and motion between perpendicular rotating shafts. A bevel gear's pressure angle, spiral angle, diametral pitch (also called DP or pitch), and its material are important factors to consider. A bevel gear is part of a set of two gears, and the gear ratio for the set is determined by the number of teeth on each gear. Gears come in several types for use in different power transmission configurations and for different applications, including spur gears (for rotating shafts parallel 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 gears, gear drives, bearings, valves, shaft collars, couplings, and other power and fluid transmission components. The company, founded in 1877, is headquartered in Charlotte, NC, and meets International Organization for Standardization (ISO) standard 9001:2008 standard.


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