Ball screw device having lubricating device

Details Ball screw device having lubricating device Ball screw device having lubricating device

2008-06-17

2011-12-27

Mansen, Michael (Department: 3654)

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to or from alternating rotary

C074S089430, C184S005000, C184S007100, C184S007400, C184S100000

Reexamination Certificate

active

08082814

ABSTRACT:
A ball screw device includes a ball nut rotatably engaged onto a screw shaft for forming a gap between the ball nut and the screw shaft and for receiving a lubricating oil and for forming a helical raceway between the ball nut and the screw shaft, a number of bearing members engaged between the ball nut and the screw shaft and in the helical raceway, and a forcing device includes a barrel having an outer helical member for forming a helical channel and for receiving the lubricating oil, and for forcing the lubricating oil to flow into the gap between the ball nut and the screw shaft and to effectively lubricate the bearing members when the barrel is rotated relative to the screw shaft.

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