Ball protection by the special top plate and ball disc design.
The special Blickle dynamic riveting process of the swivel head results in minimal swivel head play and smooth rolling characteristics with an increased service life achieved by the work hardening of the ball race grooves.
Wheels has low-noise operation, low rolling resistance, good floor preservation, very high abrasion resistance and high cut and tear propagation resistance.
Steel stamping, zinc plated
Double ball bearing in the swivel head
Bolted wheel axle
Blickle Extrathane® (polyurethane) tread, light brown color, rim color--silver
Hardness 92° Shore A
Very good chemical connection with the wheel center