Abstract: A sliding bearing 1 includes a cylindrical bearing body; slits provided in the bearing body; straight grooves provided on an inner side of the bearing body in such a manner as to extend in an axial direction A and respectively disposed between adjacent ones of the slits which are adjacent in a direction B about an axis; a sliding surface which is provided on the inner side of the bearing body and partially severed in the direction B about the axis by the slits to and the straight grooves; a fitting groove provided in an outer surface of the bearing body; and an elastic ring which is fitted in the fitting groove. Each of the straight grooves are closed on an end face side and is open on an end face side.

Abstract: A sliding bearing 1 includes a cylindrical bearing body 11; slits 14 to 18 provided in the bearing body 11; straight grooves 35 to 39 provided on an inner side of the bearing body 11 in such a manner as to extend in an axial direction A and respectively disposed between adjacent ones of the slits 14 to 18 which are adjacent in a direction B about an axis; a sliding surface 19 which is provided on the inner side of the bearing body 11 and partially severed in the direction B about the axis by the slits 14 to 18 and the straight grooves 35 to 39; a fitting groove 21 provided in an outer surface 20 of the bearing body 11; and an elastic ring 22 which is fitted in the fitting groove 21. Each of the straight grooves 35 to 39 is closed on an end face 12 side and is open on an end face 13 side.

Abstract: A sliding bearing 1 includes a cylindrical bearing body; slits provided in the bearing body; straight grooves provided on an inner side of the bearing body in such a manner as to extend in an axial direction A and respectively disposed between adjacent ones of the slits which are adjacent in a direction B about an axis; a sliding surface which is provided on the inner side of the bearing body and partially severed in the direction B about the axis by the slits to and the straight grooves; a fitting groove provided in an outer surface of the bearing body; and an elastic ring which is fitted in the fitting groove. Each of the straight grooves are closed on an end face side and is open on an end face side.

Abstract: A sliding bearing 1 includes a cylindrical bearing body 11; slits 14 to 18 provided in the bearing body 11; straight grooves 35 to 39 provided on an inner side of the bearing body 11 in such a manner as to extend in an axial direction A and respectively disposed between adjacent ones of the slits 14 to 18 which are adjacent in a direction B about an axis; a sliding surface 19 which is provided on the inner side of the bearing body 11 and partially severed in the direction B about the axis by the slits 14 to 18 and the straight grooves 35 to 39; a fitting groove 21 provided in an outer surface 20 of the bearing body 11; and an elastic ring 22 which is fitted in the fitting groove 21. Each of the straight grooves 35 to 39 is closed on an end face 12 side and is open on an end face 13 side.

Abstract: A stepping motor according to the present invention comprises a cylindrical permanent magnet on whose outer periphery N and S poles are alternately polarized, a rotatably-supported rotor, a plurality of stator cores having pole teeth arranged so as to face the permanent magnet, an exciting coil for rotating the rotor when the coil is turned on, and at least two protruded teeth serving as auxiliary poles which face the cylindrical surface of the permanent magnet so as to generate a detent torque when it is magnetized by the permanent magnet. And each of the protruded teeth faces the consecutive N an S poles of the permanent magnet.