A bearing made of a synthetic resin and adapted for use with small precision instruments and the like includes a bearing body having an external flange and protrusions axially spaced from the flange. The bearing body is received in a base plate having an opening and notches corresponding to the spacing and configuration of the protrusions in the bearing body. Cooperable securing means are provided on the protrusions and the base plate whereby upon insertion of the bearing body and protrusions into the base plate opening and the notches respectively and subsequent rotation of the bearing body, the securing means secure the bearing body to the base plate as the latter is engaged between the protrusions and the flange.
This invention relates to an apparatus in fishing reels with a line guiding mechanism including a double-threaded screw and a bearing box. According to a preferred embodiment, the bearing box displays at least two diametrically located resilient projections extending from its outer surface, and the portion of the reel frame for fixing of the bearing box has an opening through which the bearing box is insertable to its operative position for journaling one end of the double-threaded screw, and two slots diametrically placed on either side of the opening for locking cooperation with the projections, the apparatus being such that the resilient projections of the bearing box, on insertion of the bearing box in the axial direction of the double-threaded screw through the opening towards the correct operative position relative to the frame portion, are moved in through the slots which are so disposed that the projections, on the above-mentioned movement and engagement, are first, through engagement with the defining edges of the slots, resiliently bent or compressed and then, in conjunction with the arrival of the bearing box at the operative position, spring back into locking engagement with the frame portion.
A bearing retention arrangement is disclosed for rotatably supporting a shaft (27) within a bearing opening (75) defined by a wall portion (35). The bearing retainer (83) is cylindrical and includes a pair of bayonets (89,91), and the bearing opening (75) defines recesses (77,79) Which conform generally to the bayonets. After the shaft (27) is in place, along with the bearing inner race (63) and bearing members (65), the outer race (67) is pressed into the retainer (83). The retainer is then passed through the bearing opening, with the bayonets passing through the recesses, until the bayonets (89,91) are disposed adjacent a forward surface (71) of the wall portion (35). The bearing retainer is then rotated until the bayonets are no longer rotationally aligned with the recesses, and finally, some form of antirotation device (95,99) is installed to prevent rotation of the bearing retainer from its assembled position (FIG. 3).
In a moving-coil electrical instrument the electric coil is rotatably mounted on a spindle for angular displacement about the axis of the spindle. The ends of the spindle are located in respective bearings disposed in apertures of a frame and each bearing has a part that is angularly displaceable about the axis of the spindle between a first angular position in which the part supports the spindle and a second angular position in which that part is removable from the respective aperture. The coil is mounted on a support through which the spindle extends and carries a body to counter-balance the coil. The center of mass of this body is spaced from the plane which includes both the center of mass of the coil and the spindle axis. The support also carries a counterpoise body that is spaced from the counter-balance body about the spindle axis.
A shaft bearing structure comprises a shaft which is to be rotatably supported, a bushing disposed on the shaft, the bushing having an outer surface tapered in an axial direction so as to have a frusto-conical configuration, a support member having a support opening for receiving the bushing, the support opening having an inner surface tapered in an axial direction so as to have a frusto-conical configuration, and a biasing member on the shaft biasingly urging the bushing in an axial direction such that the tapered outer surface of the bushing is biased into mating contact with the tapered inner surface of the support opening.
A swivelable conduit is suggested which serves to deflect the air to be guided to the passenger space of a motor vehicle. The conduit comprises two pivot mountings which are flush with one another and are arranged at a distance from one another at a stationary structural element, preferably at the wall of an air duct; the pivot mountings comprise a bearing bush connected with one of the two elements and a bearing pin connected with the other element and in which the two bearing elements are provided with shoulder surfaces and counter-shoulder surfaces, respectively, which face one another and which define a relative movement of the two bearing elements which is directed in the direction of the swivel axis, and the bore hole wall surface of every bearing bush guides the two structural elements radially relative to the swivel axis in cooperation with an outer surface area of the bearing pin assigned to it. In order to eliminate in a simple, economical manner the axial play, which is very difficult to eliminate in these pivot mountings, as well as the radial play, which can only be prevented at a high cost, at least one of the surfaces of the bearing elements cooperating with one another comprises at least one elastically deformable portion which, in the relaxed state, projects over the contour which it occupies in the installed state, and accordingly in the tensioned state.