Institute of Caster and Wheel Manufacturers (ICWM) members are the Industry's leading suppliers of casters, wheels, and industrial trailer trucks, platform trucks and towline trucks. They supply caster and wheel solutions worldwide and in virtually every major manufacturing and distribution sector. The association was formed in 1933.
ICWM members meet regularly to review, discuss and revise the standards for design, performance and proper operation of casters, wheels, and accessories.ICWM Programs Include:
Originally approved as an American National Standard in 2004 and published in 2005, this 2012 update is intended to provide manufacturers, specifiers and users with a common basis for evaluating the safety, durability, structural adequacy and technical requirements for group specific casters and wheels.
A caster is a complete wheel and horn assembly which, when attached to a piece of equipment, allows that item to move.
There are two basic types of casters:
Caster wheels come in a wide variety of materials, sizes and treads. The type and size of wheels chosen depends on:
Here are examples of 8 types of bearings used in the manufacturing on quality casters and wheels:
Manufacturers provide many accessories for specific applications:
The user is responsible for proper maintenance and operation of equipment. Some equipment is abused or subjected to unreasonable demands. Don't overload or drop loads on carts or trucks. High speeds on rough floors can create severe impact or shock loads that may cause wheel or equipment failure. Periodically examine equipment for: