Method and apparatus for pre-loading a threadless linear actuato

Details Method and apparatus for pre-loading a threadless linear actuato Method and apparatus for pre-loading a threadless linear actuato

1985-10-21

1988-02-23

Staab, Lawrence

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to or from alternating rotary

74 25, F16H 1902

Patent

active

047262427

ABSTRACT:
A threadless linear actuator apparatus comprising a sealed actuator unit with a sealed housing for a set of spool-shaped roller bearings. The roller bearing set includes at least one variable pitch loading roller and two fixed pitch rollers arranged in a skewed relationship about a cylindrical drive shaft. A variable moment is applied to the apparatus through a moment applied about an axis which is perpendicular to and intersects the drive shaft axis which, when applied, varies the pitch of the pivotable loading roller.

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