In addition, the Kingpinless design features 3/8â diameter HRC45 steel ball bearings which absorb thrust and load in severe environments.
Featuring a Kingpinless hot forged ASTM1045 steel design that increases caster durability and integrity, the series KP30 eliminates problems associated with kingpin failure due to severe shock loading.8 Inch Kingpinless Rubber on Aluminum Wheel Swivel Caster Set with Swivel Locks These highly versatile casters are ideal for a wide range of applications, such as dollies, platform trucks, warehouse carts and freight terminals. Listing is for a set of four (4) Service Caster Series #KP30 swivel casters with 8" diameter by 2" wide rubber on aluminum wheels with bolt on swivel locks capable of supporting a total weight of 2,400 lbs. Lastly, Service Casterâs Series KP30 casters are finely crafted with grease fittings, and 4 position notches to accept 4-position locks.