Blickle lpale tpa light duty swivel castors and wheels 5075100125mm blickle 346601 this lpa tpa 50g light duty swivel castor and wheel from blickle features a oslash 50mm wheel with pressed steel castor and top plate fitting equipped with a double ball bearing in the swivel head 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