Roller type castor wheel with high stability - has sealed-off bearing channel and is designed to simplify mfr.

摘要

The ball-bearing channel (4) on the inner face of the angle limb (3) is sealed off by a ring (9) which is inserted from below and held in place by a head plate (14) of the rolling fork (15). In addition the ring is supported by a border (12) of the rotatable head (6). The inner part (8) of the bearing has an outward directed limb (8') which provides support for the ring (9). The wall sections of the bearings are designed to facilitate insertion of the ball bearings.