A center cap, or centercap is a decorative disk on an

automobile A car or automobile is a motor vehicle with Wheel, wheels. Most definitions of ''cars'' say that they run primarily on roads, Car seat, seat one to eight people, have four wheels, and mainly transport private transport#Personal transport, pe ...

wheel A wheel is a circular component that is intended to rotate on an axle Bearing (mechanical), bearing. The wheel is one of the key components of the wheel and axle which is one of the Simple machine, six simple machines. Wheels, in conjunction wi ...

that covers a central portion of the wheel. Early center caps for automobiles were small and primarily served the purpose of keeping dirt away from the spindle nut and wheel bearings of vehicles. Center caps are often found on new cars to hide the

lug nut A lug nut or wheel nut is a fastener, specifically a nut, used to secure a wheel on a vehicle. Typically, lug nuts are found on automobiles, trucks (lorries), and other large vehicles using rubber tires. Design A lug nut is a nut fastener ...

s, and/or the bearing. Center caps are a type of

hubcap A hubcap or hub cap is a decorative disk on an automobile wheel that covers at minimum the central portion of the wheel, called the hub. An automobile hubcap is used to cover the wheel hub and the wheel fasteners to reduce the accumulation of ...

, the other primary type being wheel covers. Some modern center caps are retained to the wheel using spring clips, while others are retained by the wheel lugs or other threaded fasteners.

History

Early center caps were usually either very small, or very large. They started on

cart A cart or dray (Australia and New Zealand) is a vehicle designed for transport, using two wheels and normally pulled by one or a pair of draught animals. A handcart is pulled or pushed by one or more people. It is different from the flatbed tr ...

wheels and wagons and slowly evolved into what we know them as today. Many of the centercaps from the 1950s to the 1970s were made of stainless steel. The rest of the wheel was originally of

wood Wood is a porous and fibrous structural tissue found in the stems and roots of trees and other woody plants. It is an organic materiala natural composite of cellulose fibers that are strong in tension and embedded in a matrix of lignin th ...

or many fitted metal parts. In modern times, center caps are both metal and plastic, and are typically used with aluminum alloy or styled steel wheels. Some full wheel covers use removable center caps, typically those retained by lug nuts, with the center cap's purpose to hide the lug nuts that are securing the wheel to the vehicle's hub.

Characteristics and design

Often a center cap will bear the

logo A logo (abbreviation of logotype; ) is a graphic mark, emblem, or symbol used to aid and promote public identification and recognition. It may be of an abstract or figurative design or include the text of the name it represents as in a wordma ...

trademark A trademark (also written trade mark or trade-mark) is a type of intellectual property consisting of a recognizable sign, design, or expression that identifies products or services from a particular source and distinguishes them from others ...

of the maker of the automobile or the maker of the center cap, but there are custom center caps without any

as well. Early center caps were often chrome plated. Center caps that are found on trucks are "baby moon" center caps, that originated on

Mack Trucks Mack Trucks, Inc., is an American truck manufacturing company and a former manufacturer of buses and trolley buses. Founded in 1900 as the Mack Brothers Company, it manufactured its first truck in 1905 and adopted its present name in 1922. Mack ...

and are found on

Freightliner Trucks Freightliner Trucks is a US semi truck manufacturer. Founded in 1929 as the truck-manufacturing division of Consolidated Freightways (from which it derives its name), the company was established in 1942 as Freightliner Corporation. Owned by Dai ...

History

Characteristics and design

See also