Housing steel plate, trivalent blue passivated.
Roller light brown polyurethane, Shore 92 A
or white polyamide, Shore 80 D.

Housing press formed.
Swivel castor housing with 2x ball bearing in the swivel head and ball shield.
Roller with two pressed-in ball bearings.

Wheel axle bolted.

Polyurethane roller: low-noise, low rolling resistance, elastic, floor-protecting, very wear resistant , non-staining.

Polyamide roller: very low roll and pivot resistance, smooth running on smooth floors, very wear resistant.