S V Hi-Tech Bearing (India) Private Limited

Pinion GearGenerally, when meshing pair of gears, the smaller gear is called a pinion gear. Also, it refers to the cylindrical gear that meshes with a rack in a rack-and-pinion mechanism which transforms rotational motion to linear motion.

A Gear Box is often called a transmission. Gear boxes simply refer to a set of gears and their casing, most commonly found in automobiles. Since most motor vehicle engines have high operating and idling speeds, transmissions allow the machinery to operate efficiently and even aid in slowing and shutting down machinery.

Drivetrains usually feature a gear known as the pinion, which may vary in different systems, including

• 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 desirable at the wheels. However the reverse is true in watches, where gear trains commence with a high-torque, low-speed spring and terminate in the fast-and-weak escapement.
• the smaller gear that drives in a 90-degree angle towards a crown gear in a differential drive.
• the small front sprocket on a chain driven motorcycle.
• the clutch bell gear when paired with a centrifugal clutch, in radio-controlled cars with an engine