On the left is the gear-drive cam and its distributor drive gear, while the pair on the right are for conventional chain drive. Notice the different helix angle of the gears. Shown here are the cam ...

In the early days of 4x4s, transfer cases like the Spicer 18, Dana 300, and NP205 were the norm. These cases all feature iron cases and are gear-driven for incredibly strength, but as manufacturers ...

The most reliable means for changing shaft speed remains a mechanical variable-speed transmission. These drives are used to provide a variable output speed from a constant-speed power source (as in a ...

If you’ve been considering buying your first ebike — or perhaps your second or third — chances are you’ve come across some models equipped with a belt drive instead of a traditional chain. But what ...

There are three methods of transmitting power mechanically from shaft to shaft: chain drives, gears, and flexible belts. The chief advantage of chains and belts over gears is chains can be used with ...

Quite a few years ago, Iskenderian Racing Cams introduced a gear drive setup for small-block Chevy engines to replace the somewhat undependable chain drive system. The main drawback with Isky's ...

Harley-Davidsons are special. Aside from their unique "potato-potato" exhaust note, they stand apart from most motorcycles mainly due to their single-pin crankshaft design and their belt final drives.

For vehicles like ebikes, belt drives offer a smoother, zero-maintenance alternative to chain drives. The Shift Drive system takes the technology further, by allowing riders to shift between two gears ...

Includes catalogs issued by: Union Gear & Machine Co. (former name). "Member of American Supply & Machinery Manufacturers' Association, Inc." https://siris-libraries ...