|Bolt Hole Spacing: The distance between top plate bolt holes.
||Mounting (Top) Plate: The plate at the top of the caster which is bolted or welded to the equipment.
||Raceway: Surface on which ball bearings roll.
||Swivel Radius: Horizontal distance between the centerline of the swivel kingpin and the outside edge of the wheel.|
|Capacity: Maximum load per caster based on expected operation (expected maximum load divided by number of casters)
||Fork Assembly (Rig or Yoke): The caster assembly without wheel and axle.
||Rollability: Force required to begin or maintain motion.
||Thrust Washer: The washer between the wheel hub and the inside of the caster leg.|
|Caster Size: Same as wheel diameter.
||Load Height: Vertical distance from top surface of top plate to the bottom of the wheel.
||Spanner Bushing: The fixed sleeve in which the
|TPR: Thermoplastic Rubber|
|Dynamic or Rolling Load: Load on a caster or wheel while in motion.
||Offset: Horizontal distance between the centerline of the swivel kingpin and the centerline of the axle. Shorter offsets are stronger while longer offsets improve maneuverability.
||Static Load: Load on a caster or wheel while at rest.
||Tread Width (Face): Width of the wheel tread.|