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Wheel Caster, Casters and Caster Wheels related definitions by Casters of OklahomaConductive: Characteristic of wheel casters that allows electrical flow to pass through caster wheels. Combination Wheel Brake and Swivel Lock: Brake that locks the caster wheels and the swivel on the wheel casters in the same action Durometer: Measurement of the hardness of rubber on the wheel caster and other caster wheel materials calibrated by Shore A and Shore D on a Durometer scale. High Impact: Wheel casters able to withstand high level impact. High Temperature Wheels: Wheel casters or caster wheels that can withstand temperatures exceeding 250 degrees Fahrenheit. Hollow King Pin: Hole through the upper part of a wheel casters' swivel yoke assembly that attaches to the caster wheel by a bolt. Hub: Central part of wheel casters. Hub Brake: Brake that stops caster wheels from turning by creating friction against the hub of the wheel casters. Hub Length: Distance through the widest part of the caster or caster wheels' hub including the bearing assembly. King Pin: Bolt and nut or rivet around which the swivel raceway of the wheel casters revolve. Load Bearing: Wheel casters swivel assembly’s upper or main bearing device that supports the primary load on the caster wheels. Load Capacity: Maximum load in pounds, which can be safely carried by caster wheels under normal use. Overall Height: Distance from where the wheel casters are mounted to the bottom of the caster wheel. Plain Bearing: Wheel bearing on wheel casters without balls or rollers. It's usually a sleeve of steel or plastic materials in which the axle on the caster wheel turns. Radial Brake: Brake that's attached to the side of the wheel casters that stops the rolling of the caster wheels by applying pressure to the face of the wheel. Rollability: Ease with which wheel casters roll. Rolling Resistance: Amount of starting force required to begin a wheel caster rolling an object from a stationary position. Rolling Resistance Dynamic: Amount of force required to keep an object rolling after it's been started. Shock Load: Capability of wheel casters to absorb shock by virtue of springs or rubber shock absorbing devices. Static Dissipative: Wheel caster or caster wheel that has the ability to dissipate a static charge of electricity. Static Load: Load in pounds that caster wheels can normally support when the wheel casters are at rest. Swivel Lock: Device to prevent turning of swivel caster wheels when mounted in predetermined positions, usually at 90 degrees. Swivel Offset: Measured horizontal distance from the center of the kingpin to the center of the caster wheels. Swivel Radius: Measured horizontal distance from the center of the kingpin to the trailing edge of the caster wheels. Thread Guard: Guard on each side of caster wheels that protects the hub and bearing from contaminants, string, hair, thread, etc. Thrust Bearing: Lower bearing in the wheel casters swivel assembly that enables caster wheels to withstand lateral or sideways impact. Top Plate: Mounting plate attached to the top of caster wheels to attach to equipment. Tread Width: Measurement from one side of a wheel caster to the other at the face of the caster wheel or the widest part of the wheel casters between the hub and the face of the wheel casters. Twin Lock: Brake that simultaneously locks the swivel and the caster wheels. Wheel Lock: Braking device that creates friction against the face of the wheel casters. |
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