Applications
Figure 1.21 Automotive Drive Chain and Sintered Metal Sprockets
Sprockets (1) Tooth shapes are either ANSI- or BS-type. Currently the BS-type is used more frequently. (2) Automotive engines are produced on a large scale. The sprockets for both the crankshaft and the camshaft are mass-produced from sintered metal. Selection and Handling (1) These chains are used with chain guides, levers, and tensioners to reduce chain elongation, vibration, and noise. (2) Generally, the chains are selected according to the transmission torque, small-sprocket speed, and the layout. In mid- to high-speed transmission, vibration and lubrication must also be considered. (3) These chains need forced lubrication. Technical Trend Manufacturers are focusing attention on the following issues: (1) Making lighter-weight, smaller-sized chains. (2) Improving reliability of the entire transmission system, including sprockets, guides, levers, and tensioners. (3) Decreasing noise from the chain, and throughout the entire drive system.
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