spur gear

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Related to Spur gears: worm gears

spur gear

[′spər ‚gir]
(design engineering)
A toothed wheel with radial teeth parallel to the axis.
References in periodicals archive ?
Some studies are made by slicing the helical gear to a series of spur gears and treating these slices as spur gears [16].
When fitting spur gears, care must be taken to align the shafts correctly, because inaccurate fitting can reduce tooth contact, causing wear and excessive noise.
Kapelevich, "Geometry and design of involute spur gears with asymmetric teeth," Mechanism and Machine Theory, vol.
The oils were developed to lubricate bevel and spur gears, rolling and plain bearings, types of denture clutches, and worm gears with steel/bronze pairings, as well as lifting, drive and transport chains.
Two different materials were used for spur gear, acetal for small spur gear and stainless steel for large spur gear.
Helical gears offer a refinement over spur gears [because they] can be meshed in a parallel or crossed orientations," says the engineering team from Myostat Motion Control.
The hypothesis of the model includes the theoretical meshing gear of the involutes external spur gears, the theory of elasticity for deformable solid, the contact along a contact line of the tooth width.
The models are designed with heavy-duty spur gears and bearings, powered by a low-speed, high-torque hydraulic drive motor ranging from 24 hp to 190 hp and a hydraulic flow ranging from 8 gpm to 158 gpm.
With cast-iron housings, the AM 450 features case hardened and ground spur gears, ball bearings, case hardened shafts, Viton seals on the input shaft and gear ratios identical on all outputs.
Optional versions are offered with internal or external spur gears with 64 diametral pitch and a 20-degree pressure angle for low backlash service.
For example; a new design of helical gear which is smoother and quieter than spur gears to ensure reduced pulsations and therefore less stress on internal components, while all wear plates have specifically designed relief paths to eliminate hydraulically induced gear separation forces.