Patent ID: 6446339
Filing Date: 2002-09-10
Classification: F16C,G11B,Y10T

Abstract:
A method for setting the preload of a preload-adjustable bearing comprising a first rotary unit and a second rotary unit rotatable relative to each other, said first rotary unit having a first race and a second race arranged immobile in a direction approaching toward each other, said second rotary unit having a third race and a fourth race, said third race being located opposite said first race of said first rotary unit with a first row of balls interposed therebetween, said fourth race being located opposite said second race of said first rotary unit with a second row of balls interposed therebetween, said third race being immobile relative to said second rotary unit in a direction away from said fourth race, said fourth race being fitted with said second rotary unit with an interference formed therebetween movable relative to said second rotary unit, and said fourth race being movable toward said third race under pressure along a central axis of the bearing applied between said fourth race and said second rotary unit, which method comprises:applying an axial load of a predetermined magnitude to said first rotary unit; and determining a preload between said first, second, third and fourth races and said first and second rows of balls.