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Helical Spur Gear

Helical Spur Gear

Helical gears are cylindrical disks that have involute formed teeth cut to their face at an angle. XLT share helical gears are quiet, compact and economical. They are suitable wherever you require high- speed rotation including in machine tools, speed reducers and other industrial...

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Helical gears are cylindrical disks that have involute formed teeth cut to their face at an angle. XLT share helical gears are quiet, compact and economical. They are suitable wherever you require high- speed rotation including in machine tools, speed reducers and other industrial machinery. Our helical gears are offered in alloy steel and carbon steel, with many configurations of modules and numbers of teeth. All of the helical gears that we offer allow for secondary operations such as opening the bore, adding of keyways, adding of tapped holes, but only a few allow for the reduction of the hub diameter to be performed. Our offering also includes products which have already had some of these secondary operations completed.

Helical gears belong, by the gear shaft classification, to parallel axes gears and are cylindrical gears in which the teeth are twisted as a helix line.

The shape of a helical gear is given by stacking infinitesimally thinly sliced spur gears and twisting them uniformly around the shaft. Differentiating by the direction of the twist, the right- hand and the left- hand helical gears are obtained. Also, for a pair of helical gears, the twist angles are the same but are of the opposite hands.

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Inch Crossed Gears—14 1/2° Pressure AngleimageMetric Standard Gears—20° Pressure Angleimageimage

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