Abstract: A system and method for replacing a sealing arrangement of a grid coupling without removing or disturbing a mechanical connection of the coupling with driver and driven shafts connected to the coupling includes providing combined seal members having gasket seal portions that are integrally formed with radial seal portions and that are disposed between portions of the housing and the rotating seal group of the grid coupling.

Abstract: A system and method for replacing a sealing arrangement of a grid coupling without removing or disturbing a mechanical connection of the coupling with driver and driven shafts connected to the coupling includes providing combined seal members having gasket seal portions that are integrally formed with radial seal portions and that are disposed between portions of the housing and the rotating seal group of the grid coupling.

Abstract: The present invention relates to a pulley for an alternator, and in particular, to a pulley applicable to an automotive alternator. The pulley effectively mitigates the problem that a belt and a tension pulley of an alternator vibrate because a rotation speed of a vehicle engine changes, thereby improving the overall operating efficiency of the alternator and the service life of the working belt and the tension pulley.

Abstract: A drive pulley structure has a cylindrical pulley member, a hub structure that is provided inside the pulley member so as to rotate relative to the pulley member, a coil spring that is fixed to the hub structure, a tapering which has a conical round surface as of a cone whose axis is made up of a rotational axis J of the hub structure, and a frictional member that is inserted to be interposed between the conical round surface of the tapering and the pulley member, and the coil spring is inserted to be interposed in place while being compressed in the direction of the rotational axis of the hub structure, the tapering, the frictional member and the pulley member being brought into press contact with each other by virtue of a restoring force P of the coil spring.

Abstract: A link module including a plurality of linking bars adapted to connect two coupling hubs, and grease suitable for lubricating the connection between the plurality of linking bars and the coupling hubs. The link module includes a package that is provided with an envelope surrounding the linking bars and the grease in a manner impervious to the grease, in particular in the absence of coupling hubs and/or a lid.

Abstract: A multi-legged apparatus enables a multi-legged robot to provide a natural motion, and includes a body portion comprising a body, a front leg portion comprising a front fixing portion fixed to the body, and a front rotating portion rotatably connected to the front fixing portion, a rear leg portion connected to the body and a rear leg portion comprising a rear rotating portion rotatably connected to the rear fixing portion, and a first link rotatably connected, at both ends, to the front and rear rotating portions, respectively. The body portion additionally includes a driving portion which rotates one of the front and rear rotating portions. By employing the first link and the driving portion, the body of the multi-legged robot is moved to and fro and left and right naturally in accordance with the movement of the legs, in a similar pattern as that generally shown in actual multi-legged animals.

Abstract: A flexible shaft assembly has first and second end connection members and a body section between the end members. The body section comprises a core member with elongate load supporting elements disposed around the outer surface of the core. An optional outer material can also encase the load supporting elements and core. The shaft assembly is sufficiently rigid to transfer torque and other forces, yet sufficiently flexible to permit angular displacement along its longitudinal axis.

Abstract: A rotation transmitting mechanism comprises: a three-layered coil that has an innermost layer coil portion, a middle layer coil portion and an outermost layer coil portion with alternating winding directions; and at least one elastic band that is fit to an outer peripheral area of said three-layered coil to press said outermost layer coil portion toward an inner peripheral side.

Abstract: Torque shafts and other related systems and methods are described herein. The torque shafts are both flexible and capable of transmitting torque. The torque shafts are useful for procedures that require torque and pushability to drive or deploy a device. The flexibility and pushability of the torque shafts enable them to curve along a tortuous path, and the torque transferring capability of the shafts enable them to transmit torque along the shaft.

Abstract: A decoupler assembly for transferring rotary movement between an engine driven shaft and a serpentine belt. The decoupler includes a hub configured to be assembled to the shaft. The hub has a helical first slot formed therein. A pulley is rotatably coupled to the hub. A carrier is mounted on the hub and includes a helical second slot formed therein, as well as an anti-ramp up boss formed thereon. A thrust plate is fixed to the hub and has a slot formed therein. A torsion spring is compressed between a hub end retained in the helical first slot and a carrier end retained in the helical second slot for transferring torque between the hub and carrier. The anti-ramp up boss travels within the slot formed in the thrust plate for limiting rotation between the carrier and thrust plate and preventing rotation of the torsion spring relative to the hub and carrier.

Abstract: A compact friction plate damper having a primary plate and a secondary plate, which interacts by means of a friction element. A speed-dependent control device is provided for the friction, wherein the friction device has a contact arrangement upon which force is to be exerted essentially radially. The friction control device comprises a spring element, which takes effect with rotational speed-dependent force on the contract arrangement in an essentially radial manner. In addition to this, the friction device interacts by friction with the secondary plate, and is mounted so as to be rotationally movable in relation to the primary plate by at least a small angle. Thus the friction control comprises a rotational speed-dependent coupling element between the primary plate and the friction device.

Abstract: A flexible shaft coupling of a type which uses a serpentine metal grid to connect teeth on hubs attached to driving and driven shafts has the sides of the teeth made of a polymeric resin material such as a polyurethane or a reinforced nylon 6/6, lubricated with PTFE. The side faces of the teeth deflect and deform under torque load to accommodate to the grid.

Abstract: A flexible shaft coupling of the type which uses a serpentine metal grid to connect teeth on hubs attached to driving and driven shafts has the sides of the grid rung which contact the metal teeth provided with a layer of deformable material. The layer of deformable material will deform under torque load relative to the metal teeth and metal grid and absorb differences in tooth or rung spacing or parallelism to thereby insure a more even load distribution between the rungs and teeth. A preferred deformable material is a urethane having excellent tensile strength and hardness as well as good elongation, wear resistance and flexural modulus properties.