Gear tooth geometry is determined primarily by pitch, depth, and pressure angle. Pitch: Standard pitches are usually whole numbers when measured as diametral pitch P, the ratio of the number of ...

A ratchet lets you loosen or tighten a bolt without much hassle. We'll tell you everything you need to know about the inner ...

For example, suppose the tooth of a driving gear is pushing against the tooth of a driven gear with 25 Ibs.-ft. of force. This means that at a distance of one foot (the radius, or distance from ...

Currently, it's easiest to find 17- to 22-tooth driven gears for 1.84-inch drive gears (GM still stocks many of them), and (from aftermarket sources) 22- to 25-tooth driven gears for 1.76-inch ...

For external and internal gears with normal pressure angle n = 20°, the Zone factor diagram provides ZH curves in terms of correction coefficients x 1 and x 2, the number of pinion and gear teeth ...

My idea is for a way to convert a hob’s trapezoidal profile teeth with any angle to any another hob’s trapezoidal angle profile, with the same diametral pitch P (i.e., the same distance between the ...

All metals have a bending strength that is significantly stronger than their surface durability or bearing strength. To improve that surface durability and thereby improve the life of a gear, the gear ...

Glenn Muffly, GEAR-GRINDING AND TOOTH-FORMS, SAE Transactions, Vol. 18, PART I (1923), pp. 568-612 ...