Gear
A gear is a mechanical system composed of two or more toothed wheels for the transmission of the rotational movement.
A gear is composed of a pinion (so called the only wheel or the smallest wheel) and a wheel, a rack or a crown. When there are more than two toothed wheels, it is called a gear train.
Gear with parallel axes
Gear whose axes are parallel.
Concurrent gear
Gear whose axes have a point of intersection, the conical pinions
Left Gear
Gear whose axes are neither parallel nor concurrent, the gears wheels and worms.
Pressure angle
(Α) It is generally 20 ° but it also exists at 14 ° 30, 30 ° ...
Propeller angle
(ß) Angle of inclination of a helical gear. It may be right or left.
The helix angle will vary the Ø d and the diameters Ø da and df.
Formulas
Ø primitive: d = m * z
Head Ø: da = d + 2 * m
Ø of foot df = d-2.5 * m
Pitch of the teeth: p = π * m.
Pinion
Name of the smallest wheel or wheel.
Gear Train
We speak of a gear train when there
Fluted satellite doors
Plus d'images
Fluted titanium shafts
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Case hardened pinion
Soaked
Rectified
External cutting
of a wheel on
MAAG SH / 300
12 tooth sprocket
Module 10 & 20 °
Tooth control
in Tri Dim
Propeller, Profile, Step
Plus d'images
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