142results about How to "Uneven wear" patented technology

Flexible abrasive sheet articles having precision thickness flat-topped raised island structures that are coated with a monolayer of equal sized abrasive agglomerate are described. Methods of producing high quality equal-sized spherical shaped composite abrasive agglomerate beads containing small diamond abrasive particles are described. Beads are produced by level-filling fine mesh screens or perforated sheets with a water based metal oxide slurry containing abrasive particles and then using a fluid jet to eject the abrasive slurry lumps from the individual screen cells into a dehydrating environment. Surface tension forces form the ejected liquid lumps into spheres that are solidified and then heated in a furnace to form ceramic beads. These porous ceramic abrasive beads can be bonded directly onto the flat planar surface of a flexible backing material or they can be bonded onto raised island surfaces to form rectangular or disk abrasive sheet articles. Abrasive articles having equal sized abrasive beads are particularly suited for lapping and raised island articles are suited for high speed lapping. Non-abrasive equal-sized beads can also be formed using this simple bead manufacturing process, which requires only a very low capital investment.

First to third inner locking pieces 12 to 14 are provided at both ends of an inner shim plate 2a in a radial direction of a rotor so as to be bent toward the pad, respectively. First to third outer locking pieces 15, 17 and 18 are provided at both ends of an outer shim plate 1a in the radial direction of the rotor so as to be bent in the same direction as the locking pieces 12 to 14. An inner shim plate 2a is mounted on a pressure plate 10, and the first to third outer locking pieces 15, 17 and 18 are superimposed on the first to third inner locking pieces 12 to 14 such that main body parts 7 and 8 of the respective shim plates 2a and 1a are locked in the pad in the axial direction of the rotor.

A circumferential sipe extends continuously in the circumferential direction of the tire in the center region of the tread surface section of a rib defined between circumferential grooves. Widthwise sipes are disposed at prescribed intervals in the circumferential direction of the tire in the tread surface section, the widthwise sipes extending in the widthwise direction of the tire in crossing relationship to the circumferential sipe, the widthwise sipes each having opposing terminal ends open to the circumferential grooves. The circumferential sipe changes in depth periodically in such a manner that the circumferential sipe is shallow between adjacent widthwise sipes. The widthwise sipes changes in depth in such a manner that they are greater in depth in the center region and end regions of the tread surface section.

First to third inner locking pieces 12 to 14 are provided at both ends of an inner shim plate 2a in a radial direction of a rotor so as to be bent toward the pad, respectively. First to third outer locking pieces 15, 17 and 18 are provided at both ends of an outer shim plate 1a in the radial direction of the rotor so as to be bent in the same direction as the locking pieces 12 to 14. An inner shim plate 2a is mounted on a pressure plate 10, and the first to third outer locking pieces 15, 17 and 18 are superimposed on the first to third inner locking pieces 12 to 14 such that main body parts 7 and 8 of the respective shim plates 2a and 1a are locked in the pad in the axial direction of the rotor.

In an engine timing chain guide composed of a synthetic resin shoe supported on a frame by L-shaped and strip-shaped engagement members integrally molded as unitary parts of the shoe, the L-shaped members are formed with oblique tongues that resiliently engage side edges of the frame member, and the strip-shaped engagement members include surfaces that extend obliquely toward, and resiliently engage, a side edge of the frame member. Laterally extending legs of the L-shaped members are also formed with bulged portions, and the frame member is sandwiched between the bulged portions and a back side of the shoe.

Pistons 3 and 7 are pressed to a friction member 11 at two points that are positioned at a rotating-in side and a rotating-out side in a rotating direction of a brake rotor 10. An axial force control is performed for the piston 3 on the rotating-out side, and a position control based on the position of the piston 3 on the rotating-out side is performed for the piston 7 on the rotating-in side.

In the pneumatic tire, the blocks above the circumferential reinforcing layer have at least one sipe. Also, the sipe has a bent shape, in a plan view, with two flex points P1, P2, and has a closed structure with two end points Q1, Q2 terminating within the block. Also, the angle α between the line that connects the flex points P1, P2 and the tire circumferential direction is within the range such that 0°≦α≦10°. Also, the angle β1 between the line connecting the flex point P1 and the end point Q1 and the tire circumferential direction, and the angle β2 between the line connecting the flex point P2 and the end point Q2 and the tire circumferential direction are within the range such that 35°≦1≦55° and 35°≦β2≦55°.