Abstract: A retainer nut for use in a bearing assembly disposed between a shaft and another structural element does not trap metallic chips from a failing bearing. The bearing assembly includes a first race mounted to the shaft, a second race mounted to the structural element, and a plurality of bearing elements disposed between the first and second races. The retainer nut is attached to the shaft and includes a cylindrical ring portion and an annular flange disposed on one end of the ring portion. The flange extends radially inward from the ring portion, and a plurality of openings is formed through the flange for allowing metallic chips to freely pass.

Abstract: A retainer nut for use in a bearing assembly disposed between a shaft and another structural element does not trap metallic chips from a failing bearing. The bearing assembly includes a first race mounted to the shaft, a second race mounted to the structural element, and a plurality of bearing elements disposed between the first and second races. The retainer nut is attached to the shaft and includes a cylindrical ring portion and an annular flange disposed on one end of the ring portion. The flange extends radially inward from the ring portion, and a plurality of openings is formed through the flange for allowing metallic chips to freely pass.

Abstract: A method for determining range by correlating the relationship between the distance of a diffraction grating from a monochromatically illuminated target surface with the respective relative displacements of higher order diffraction images from the position of the zero order image as observed through the diffraction grating. An apparatus suggested for embodying the aforesaid method.