A pedal with a bicycle chain that connects the beater hub to footboard.
A chain arrangement used in conjunction with sprockets to transmit reversible rotary actuator force to a guillotine blade. Also: A link-chain loop used with a chainwheel to permit manual rotation of a manually-turned actuator input shaft from a convenient lower lever.
Chain drive is a way of transmitting mechanical power from one place to another. It is often used to convey power to the wheels of a vehicle, particularly bicycles and motorcycles. It is also used in a wide variety of machines besides vehicles.