Tapering, cone-shaped, resilient wire springs used in quality construction of upholstered furniture, mattresses and boxsprings (also called cone springs).
A spring made from wire that has been wound into a spiral shape. Coil springs are used in the suspension of many vehicles
Wire coils used in more expensive upholstered seating pieces to give a desired resiliency and firmness to the seat and back.
Wire coils used in quality upholstery to give a desired resiliency and firmness to the seat and back. These are often "tied" or incorporated in a "marshall unit."
A type of spring made of wound heavy-gauge steel wire used to support the weight of the vehicle. The spring may be located between the control arm and chassis, the axle and chassis, or around a MacPherson strut. Coil springs may be conical or spiral wound
One of several types of springs used in suspension systems. Coil springs are built from a single piece of tempered steel wound into a cylindrical coil shape. Often employed in cars or SUVs.