Abstract: A bearing seal of pack seal type used for a bearing unit rotatably supporting a rotary side member on an inner ring side relative to a stationary side member on an outer ring side.

Abstract: A sealing device with a tone wheel formed to seal between a fixed side member and a rotating side member. A slinger comprises a fitting cylindrical part fitted to the rotating side member and a flanged part radially extendedly formed at one end part of the fitting cylindrical part positioned on the outer side of a sealed portion. The outer surface of the flanged part positioned on the outer side of the sealed portion comprises a tone wheel stuck surface on which the tone wheel formed of a magnetic ring is stuck integrally with each other and an extended surface on which the tone wheel is not stuck and extended to the fixed side member.

Abstract: A pulser ring and a second seal ring are separately formed. When a multipolar magnetic rotor of the pulser ring is bonded to an outer circumferential face of an outer cylindrical portion of an annular core portion, the multipolar magnetic rotor is opposed to a magnetic sensor in the radial direction. Due to the above structure, the multipolar magnetic rotor can be strongly supported by an outer cylindrical portion of the annular core portion. Therefore, even when a rotary centrifugal force is given to the multipolar magnetic rotor, it can not be swung in the radial direction. Accordingly, an interval of the multipolar magnetic rotor and the magnetic sensor in the radial direction, which are opposed to each other, can be maintained constant irrespective of an intensity of the centrifugal force.

Abstract: A gasket commonly used for a plural kinds of objective members to be sealed, the objective members having the same outer shapes and differently figured plural bores to be sealed.

Abstract: A sealing device being disposed between an outer member and an inner member with a flange portion in which the outer and inner members are concentrically disposed and rotate relative to each other. The sealing device comprises a core metal fit to the outer member, and an elastic seal member having a seal lip integrally fixed to the core metal. The seal lip has a side lip elastically and slidably contacting the flange portion, and an exterior lip formed at outer diameter side of the side lip so as to extend toward the flange portion. The exterior lip has a projecting portion projecting toward the flange portion.

Abstract: The position of a passage separating member in the axial direction of the cylinder bores is determined by causing a spacer to contact a bottom surface of a water jacket. When the separating member is inserted in the water jacket, the width of the separating member is reduced due to elastic deformation, so that the separating member can be arranged in the water jacket. After being arranged, the separating member tightly contacts the inner surface of the water jacket due to elastic restoration force. The tight contact prevents the separating member from moving upward in the water jacket. As a result, coolant is prevented from moving between the upper portion and the lower portion with respect to the separating member. The advantages of separate cooling of the coolant in the upper and lower portions with respect to the separating member are obtained. This reliably reduces the temperature difference along the axial direction of the cylinder bore forming body.

Abstract: A magnetic encoder constituting rotation detector in combination with a magnetic sensor, comprising a circular multipolar magnet and a metal reinforcing ring to which the circular multipolar magnet is fixed is disclosed. The encoder is characterized by a projecting portion which is provided at a surface of the circular multipolar magnet facing to the metal reinforcing ring, so as to form an adhesive space to secure uniform adhesive layer between metal reinforcing ring and the circular multipolar magnet, thereby preventing from being peeled off or cracked. And the height of the projecting portion is adapted to define the thickness of the adhesive layer.

Abstract: A cylinder head gasket for sealing between a cylinder block and a cylinder head, composed of a composite base plate, the composite base plate comprising a core material plate and a compound layer formed on the front and back surfaces of the core material plate, the compound layer being formed by coating compound materials which contain a rubber and a fiber material. The cylinder head gasket is comprised of an annular groove which is formed by pressing the corresponding region around the cylinder bore of the compound layer, and a bead projecting from the surface of the compound layer which is formed by inserting the rubber material into the annular groove.

Abstract: A metal annular gasket comprising an annular metal base plate; a compound layer integrally laminated on both surfaces of the annular metal base plate, the compound layer being made of synthetic resin or a rubber material mixed with a fiber material; and an annular seal layer having a circumferential covering portion which covers the inner circumferential edge of the annular metal plate and the inner circumferential edge of both compound layers, the compound layer being made of synthetic resin or a rubber material. The annular seal layer is formed such that the surface of the annular seal layer is so connected to the surfaces of the compound layer as to provide smooth transition in its thickness direction.

Abstract: A sealing device for sealing a space between a rotary side member and a stationary side member which comprises a slinger with a specific structure is disclosed.

Abstract: The thermostat installing structure is provided, according to which a thermostat can be installed stably in the circulation path of cooling medium, and the circulation path of cooling medium can be also fastened to the body of an internal combustion engine without causing any damage to the function of the thermostat. The thermostat (5) comprises a frame (12) formed integrally with an annular supporting substrate (6) having the inner circumferential edge portion serving as a valve seat (6a) and regulating a projecting head portion (7a) of an extendable rod (7), whereby the thermostat is installed between the circulation path of cooling medium and the cooling medium channel of the internal combustion engine in a manner that the circulation path of cooling medium and the internal combustion engine body are integrally fastened by fixing the thermostat at a predetermined position in the circulation path of cooling medium with the fixing means and thereafter fitting a gasket.

Abstract: A sealing device for sealing space between two members concentrically and relatively rotating comprising a core member fixedly fitted into one of the two members, a metal slinger fixedly fitted into the other of the two members, and an elastic seal member fixedly attached to the core member and having a seal lip which elastically and slidably contacts the slinger. The slinger has a slidably contacting treated surface for the seal lip as is processed such a surface-treatment as defined by the following parameters: arithmetic mean roughness Ra in the range from 0.5 ?m to 1.5 ?m, root-mean-square roughness Rq in the range from 0.6 ?m to 2.0 ?m, mean surface irregularity interval Sm in the range from 0.05 mm to 0.17 mm and peak count Pc (50%) in the range from 20 to 60.

Abstract: An integral molding method of gasket of a fuel cell component member in which a gasket body is integrally molded with an outer peripheral portion of a membrane electrode assembly and a peripheral portion of an opening formed on the membrane electrode assembly by cross-linking molding using a mold having a heating means, the membrane electrode assembly comprising a proton exchange membrane, a gas diffusion layer integrally laminated on both sides of the proton exchange membrane via a catalyst carrier layer constituting an electrode. The mold has a cavity corresponding to a molding portion of the gasket body and a heat insulation zone corresponding to a power generating functional portion of the fuel cell component member, a not-cross-linked gasket material is filled in the cavity and the gasket material is molded by heat cross-linking molding using the heating means, whereby a heat generated by molding is prevented from being transmitted to the power generating functional portion by the heat insulation zone.

Abstract: A tone wheel constituting a rotation detection magnetic encoder in combination with a magnetic sensor fixed onto a stationary side member, the tone wheel comprising a metal reinforcing ring fitted in a rotary side member and a circular multipolar magnet fixed to the metal reinforcing ring. the circular multipolar magnet is made of a plastic magnet of a circular resin molded product which contains a magnetic powder therein and is magnetized with a number of S and N poles alternatively provided along its circumference. The metal reinforcing ring has a mating portion with which a part of the circular resin molded product mates. The circular resin molded product is a molded product integrally combined with the metal reinforcing ring in which a part of the circular resin molded product mates with the mating portion of the metal reinforcing ring, and is made by charging a melt resin material into a forming die in which the metal reinforcing ring is disposed and hardening the melt resin material.

Abstract: A coreless seal 11 for being assembled in a shell-type roller bearing provided in a shell-type roller bearing comprises an elastic annular member 12. An outer diameter B of the coreless seal 11 for being assembled in the shell-type roller bearing is a dimension provided by adding interference 2A for an amount of thermal shrinkage to an inner diameter C of a shell-type outer ring. Since the annular member 12 shrinks in a direction shown by an arrow W at low temperature, the outer diameter of the coreless seal 11 for being assembled in the shell-type roller bearing is reduced from B to B?. However, since the outer diameter B is provided with the dimension A obtained by adding interference for an amount of thermal shrinkage, the coreless seal 11 for being assembled in the shell-type roller bearing has interference A? in its outer diameter B? even after the shrinkage.

Abstract: A sealing device (A) with a tone wheel formed to seal between a fixed side member (4) and a rotating side member (3). A slinger (8) comprises a fitting cylindrical part (8a) fitted to the rotating side member (3) and a flanged part (8b) radially extendedly formed at one end part of the fitting cylindrical part (8a) positioned on the outer side of a sealed portion (S). The outer surface of the flanged part (8b) positioned on the outer side of the sealed portion (S) comprises a tone wheel stuck surface (8d) on which the tone wheel (9) formed of a magnetic ring is stuck integrally with each other and an extended surface (8c) on which the tone wheel (9) is not stuck and extended to the fixed side member (4).

Abstract: A sealing device formed to seal between a fixed side member and a rotating side member, comprising a slinger having a fitting cylindrical part fitted to the rotating side member and a flange part formed at one end part of the fitting cylindrical part positioned on the outer side of a sealed portion so as to be extended in the radial direction. A core comprises at least a fitting cylindrical part fitted to the fixed side member. The sealing device is characterized in that one end part of the fitting cylindrical part positioned on the outer side of the sealed portion is positioned on the sealed portion side more than the sealed portion side inner surface position of the flange part of the slinger and a part of a seal lip part is formed to be projected from near one end part of the fitting cylindrical part of the core and to be brought into elastically slidable contact with the extended end face of the slinger.

Abstract: A magnetic encoder constituting rotation detector in combination with a magnetic sensor, comprising a circular multipolar magnet and a metal reinforcing ring to which the circular multipolar magnet is fixed is disclosed. The encoder is characterized by a projecting portion which is provided at a surface of the circular multipolar magnet facing to the metal reinforcing ring, so as to form an adhesive space to secure uniform adhesive layer between metal reinforcing ring and the circular multipolar magnet, thereby preventing from being peeled off or cracked. And the height of the projecting portion is adapted to define the thickness of the adhesive layer.

Abstract: A sealing device formed to seal between a fixed side member and a rotating side member, comprising a slinger having a fitting cylindrical part fitted to the rotating side member and a flange part formed at one end part of the fitting cylindrical part positioned on the outer side of a sealed portion so as to be extended in the radial direction. A core comprises at least a fitting cylindrical part fitted to the fixed side member. The sealing device is characterized in that one end part of the fitting cylindrical part positioned on the outer side of the sealed portion is projected outward more than the sealed portion side inner surface position of the flange part of the slinger and a part of a seal lip part is formed to be brought into elastically slidable contact with the extended end face of the slinger.

Abstract: A newly developed method for manufacturing a tone wheel is disclosed, according to which a circular magnetic molded body made from a magnetic powder is enable to be combined with a metal reinforcing ring without deformation and partial breakage in the assembly process. The method is characterized by manufacturing a tone wheel with an elastic member disposed between the metal reinforcing ring and the circular magnetic body and comprises providing step of a circular magnetic body formed with an elastic member disposing portion on a circumferential surface of the metal reinforcing ring on a magnetic sensor side, fixing step of an elastic member into the elastic member disposing portion to make a composite member body, and bending step of the circumferential edge of the metal reinforcing ring to fix the composite member body thereby.