Chain coupling

A shackle for uniting lengths of chain, or connecting a chain with an object.
(Railroad) Supplementary coupling together of cars with a chain.

See also: Chain, Chain

References in periodicals archive ?
From there, you simply mounted a hydraulic pump (driven direct from the crankshaft) with a roller chain coupling and then you had live hydraulics.
For applications where corrosion is prevalent, Tsubaki recommends the use of the nylon chain coupling, which although outright torque transmission capacity is lower than the steel version; it does not require lubrication and ensures that the environment around the coupling is not contaminated with grease.
Keeping in view, the above mentioned limitations of the conventional coupling, we propose the design of an adjustable roller chain coupling which can be adjusted according to the requirement with regard to the shaft diameter.
This last behavior might be the most desirable for a well-controlled MDI grafting, since the sharp increase in [M.sub.w] at 170[degrees]C is probably associated with strong chain coupling with a chance of gelation; whereas at 190[degrees]C, rearrangements and chains scissions due to the thermoreversibility of the urethane bond (25-31) presumably become non-negligible and result in partial but irreversible degradation of the material due to the excess NCO groups released in that case.
A roller chain coupling consists of two special sprockets, a strand of double-width roller chain, and a protective cover.
Chain Couplings. Consisting of chain wrapped around two hardened-steel or plastic sprockets, chain couplings are satisfactory in low-speed, high-torque applications because they are economical, lightweight, and easy to install.