Chain Coupling Assembly (16-45 Diameter Shaft/Max 3000rpm)
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Chain coupling is composed by a duplex roller chain and two sprockets. The function of connection and detachment is done by the join of chain. It has the characteristic of simplicity, high efficiency, easy-on and easy-off and nice look out.
It also has a aluminium cover to prevent dust and protect the lubricant make the life of chain coupling a long-lasting one.
|Applicable Range of Shaft:||16-45|
|Max Angular (Degree):||1°|
|Max Torque (Nm):||979|
|Max Revolution (rpm):||3000|
|Moment of Inertia (kgcm²):||56.3|
|Required amount of grease (kg):||0.36|
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Chain couplings are utilized to transmit power between two shafts. Generally, chain couplings will be installed off the end of a motor or reducer (gearbox) and connected to a machine for efficient power transmission. A complete chain coupling consists of two hubs (or sprockets), one coupling chain, which appears similar to a strand of a double roller chain, and a cover. Not all applications will utilize a cover, however for both safety and coupling life they are recommended. Chain couplings are normally utilized in low-speed, high torque applications and allow for 2 degrees of misalignment between shafts. Chain couplings are considered an economical way to transmit power between shafts
Chain Couplings: features & benefits
Chain couplings are usually employed in low to moderate speed, high torque applications and are not often found in higher speed applications where grid, gear, and other more sophisticated couplings predominate. They are considered to be fairly rugged and easy to install. Typical applications include line-shaft couplings on live-roller conveyors. Here, the plastic chain provides a lubrication-free coupling solution that requires neither covers for lubricant retention nor coupling guards because the smooth outer surface of the chain presents no catch hazards.
For standard power transmission applications, chain couplings can be purchased in a range of shaft sizes and torque capacities, with typical bore diameters up to 4-1/2 in. and torque capacities up to 220,000 in.-lbs available. Allowable angular misalignment is usually a maximum of 1° and parallel misalignment is usually limited to 2% of the chain pitch. Sometimes these allowances are decreased for installations that operate at higher speeds.
Sprockets are sized in two-tooth intervals to correspond to the roller chain links, with pitches based on ANSI standards (i.e., #40, #60, #80). Ordinarily, the manufacturer will select the appropriate sprocket size and pitch for the given torque requirements, but knowing the pitch of the sprocket makes it possible to select an appropriate replacement chain.
Specifying a chain coupling requires knowing the required bore, calculating the transmitted torque, then applying a multiplier supplied by the manufacturer that rates the severity of the service, usually by machine type. Manufacturers often have online calculators to help specifiers in selecting couplings.