Spur Gears

Brass Spur Gears

Spur gears are used in mechanical applications to increase or decrease the speed of a device or multiply torque by transmitting motion and power from one shaft to another through a series of mated gears. Spur gears are one of the most popular types of precision cylindrical gears. These gears feature a simple design of straight, parallel teeth positioned around the circumference of a cylinder body with a central bore that fits over a shaft. In many variants, the gear is machined with a hub that thickens the gear body around the bore without changing the gear face. The central bore can also be broached to allow the spur gear to fit onto a spline or keyed shaft.

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Brass spur gears are designed to transmit motion and power between parallel shafts. The different styles offered include spur, gear rack, pinion wire, stem pinions, and internal gears. Most come with a selection of bore diameters, keyways, and setscrews to accommodate various application requirements. They are available in plastic, non-metallic, brass, steel, and cast iron and are manufactured in various styles, including plain, web, web with lightning holes, and web with spokes. Many are available with or without hubs.

Description

  • Transmits torque between parallel shafts to provide rotational power to another part of a motorized system
  • Pressure angle of 20 degrees for a lower contact ratio between gears, resulting in higher load capacity than smaller pressure angles.
  • The diametral pitch of 24 for applications where controlling changes in speed and direction of rotation with precision is more important than transferring torque.
  • Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability 

Product Specifications

Specification for this product family

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Spur Gear Video