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Gear oil is a lubricant made specifically for transmissions, transfer cases, and differentials in automobiles, trucks, and other machinery. It has high viscosity and usually contains organosulfur compounds .
Hypoid gear sets have long been used in the differential of rear-wheel drive cars, trucks and robotic arms.The scope of misalignment between the centers of the two interlinking shafts permits utilization of larger sized gears which enhances the contact surface area and reduces the wear and tear on the gear hence extending the life and power transmission capabilities of the gearboxes.
A face gear set typically consists of a disk-shaped gear, grooved on at least one face, in combination with a spur, helical, or conical pinion. A face gear has a planar pitch surface and a planar root surface, both of which are perpendicular to the axis of rotation. [ 1 ]
The first Dana 70 axles had a 1 ⁄ 2-inch (13 mm) pinion offset and were found in Dana 70HD's as well. The drawback with the 1 / 2-inch offset was that a 4.10:1 gear ratio was the highest gear set possible. In the 1970s the 1 / 2-inch offset was phased out for a 5 ⁄ 8-inch (16 mm) offset that allowed
The shape of a hypoid gear is a revolved hyperboloid (that is, the pitch surface of the hypoid gear is a hyperbolic surface), whereas the shape of a spiral bevel gear is normally conical. The hypoid gear places the pinion off-axis to the crown wheel (ring gear) which allows the pinion to be larger in diameter and have more contact area. In ...
For a 20° pressure angle the distance equals 0.73 times the amount of backlash desired. [3] As a rule of thumb the average backlash is defined as 0.04 divided by the diametral pitch; the minimum being 0.03 divided by the diametral pitch and the maximum 0.05 divided by the diametral pitch. [3]
the typically smaller gear in a gear drive train (although in the first commercially successful steam locomotive—the Salamanca—the pinion was rather large). [1] In many cases, such as remote controlled toys , the pinion is also the drive gear for a reduction in speed, since electric motors operate at higher speed and lower torque than ...