Patent ID: 6510614
Filing Date: 2003-01-28
Classification: F16C

Abstract:
A linear guide apparatus comprising:a rail having an outside face with first raceway grove thereon, a bearing block having an inside face and a base portion and movable in the longitudinal direction of the rail, the inside face having thereon second raceway grove opposed individually to the first raceway groove of the rail; a worked surface formed on that portion of the inside face of the bearing block which is situated between the second raceway grove and the base portion, wherein the worked surface is spaced from the outside face so that the worked surface does not come into contact with the outside face; and a labyrinth seal portion formed of the worked surface and the outside face of the rail and serving to prevent foreign substances from getting into the first and second raceway grooves wherein the labyrinth seal portion comprises a gap formed between the worked surface and the outside face, said gap being approximately 0.2 mm or less wide.