APPLICATIONS:
Cushion rubber tread vulcanized to strong cast iron hub with zerk lubrication. Excellent floor and load protection. Easy rolling and shock absorbing for quiet operation. 70-80 shore (A) durometer rating. 

SPECIFICATIONS:
Swivel: Two rows of ball bearings in hardened raceways.
Fork: 1/4″ formed steel plate, double welded.
King Pin: 3/4″ heat treated bolt and nut.

Stem: 3.5" tall x 1.37" diameter

Lubrication: Zerk in swivel raceway, wheel hub or lube axle.

Axle: 1/2″ Diameter bolt and nut.
Finish: Zinc Plated.

A double locking brake mechanism that locks the wheel and swivel simultaneously and makes sure the wheel and the caster are totally immobile, while the brake is engaged. Often used for scaffolding on a construction site.