摘要:
A fiber reinforced plastic pipe is provided to prevent it from being damaged and make full use of its practical performance when the fiber reinforced plastic pipe, reduced in thickness and increased in diameter by pultrusion process, is reduced in the circumferential direction and inserted into a metal pipe. The fiber reinforced plastic pipe, reduced in thickness and increased in diameter by pultrusion process, includes a fiber bundle spun and aligned in the longitudinal direction, and circumferential reinforced fiber sheet provided at least on one of the outer and inner surface layers. The circumferential reinforced fiber sheet is inserted into the metal pipe to form a power transmission shaft such as an intermediate shaft for use with a propeller shaft or a drive shaft.
摘要:
A fiber reinforced plastic pipe is provided to prevent it from being damaged and make full use of its practical performance when the fiber reinforced plastic pipe, reduced in thickness and increased in diameter by pultrusion process, is reduced in the circumferential direction and inserted into a metal pipe. The fiber reinforced plastic pipe, reduced in thickness and increased in diameter by pultrusion process, includes a fiber bundle spun and aligned in the longitudinal direction, and circumferential reinforced fiber sheet provided at least on one of the outer and inner surface layers. The circumferential reinforced fiber sheet is inserted into the metal pipe to form a power transmission shaft such as an intermediate shaft for use with a propeller shaft or a drive shaft.
摘要:
To provide a magnetic encoder which can be assembled having a thin-walled structure while securing an excellent detection sensitivity and which can provide an excellent moldability by suitably selecting materials, the magnetic encoder is provided which includes a multi-pole magnet 14 having a plurality of opposite magnetic poles alternating in a direction circumferentially thereof, and a core metal 11 for supporting the multi-pole magnet. The multi-pole magnet 14 contains a powdery magnetic material mixed in an amount within the range of 20 to 90 vol.% relative to the total volume of the multi-pole magnet 14. The multi-pole magnet 14 may be a sintered magnet.
摘要:
To provide a wheel support bearing assembly capable of securing a satisfactory sealability and of accomplishing an assured press-fit of an magnetic encoder, the wheel support bearing assembly for supporting a vehicle wheel rotatably relative to a vehicle body structure includes an outer member 2, an inner member 1 positioned inside the outer member 2 with an annular bearing space delimited between it and the outer member 2, and rows of rolling elements 3 rollingly within the annular bearing space. At least one sealing unit 5 is provided for sealing one of opposite open ends of the annular bearing space. This sealing unit 5 is comprised in part of a magnetic encoder 10 including a multi-pole magnet member 14 having a plurality of opposite magnetic poles alternating in a direction circumferentially thereof and a first sealing plate 11 serving as a core metal. The first sealing plate 11 is press-fitted onto the inner member 1 with the amount of interference fit to be within the range of 5 to 230 µm.
摘要:
To provide a magnetic encoder which can be assembled having a a multi-pole magnet in the form of a plastics magnet having a plurality of opposite magnetic poles alternating in a direction circumferentially thereof; and a core metal for supporting the multi-pole magnet; wherein the multi-pole magnet is of a disc-shaped configuration and of a kind prepared by mixing a plastomer with a powdery magnetic material, said powdery magnetic material being mixed in an amount within the range of 30 to 80 vol.% relative to the total volume of the multi-pole magnet, wherein the wheel support bearing assembly is for supporting a wheel for rotation relative to a vehicle body and comprises an outer member 2 having an inner peripheral surface formed with a plurality of first raceways; an inner member 1 having a corresponding number of second raceways defined therein in alignment with the first raceways in the outer member; rows of rolling elements 3 rollingly received in part within the first raceways and in part within the second raceways; a sealing unit 5, 13 for sealing an annular bearing space delimited between the outer member and the inner member, and including a first sealing plate 11 of a generally L-sectioned configuration mounted on one of the outer and inner members which serves as a rotatable member, and a second sealing plate 12 of a generally L-sectioned configuration mounted on the other of the outer and inner members which serves as a stationary member, and positioned in face-to-face relation with the first sealing plate, said first sealing plate defining the core metal of the magnetic encoder and having a cylindrical axial wall and a radial upright wall; and an elastic sealing member 16 including a side sealing lip and at least one radial sealing lip, said elastic sealing member being secured to the second sealing plate with the side sealing lip slidingly engaging the radial upright wall of the first sealing plate and with the at least one radial sealing lip slidingly engaging the cylindrical axial wall; and wherein the multi-pole magnet is mounted on the radial upright wall of the first sealing plate
摘要:
To substantially eliminate deficiencies such as portions of the resinous coating, where the film thickness is reduced considerably during the press-fitting, and to aim at providing a high productivity with a reduced cost and without the possibility of occurrence of rusting after a prolonged time of use under severe environmental conditions due to an excellent anticorrosive property, a magnetic encoder (10) includes a multipolar magnet (14) having a plurality of alternating magnetic poles alternating with each other in a direction circumferentially thereof, and a core metal (11) supporting the multipolar magnet (14). The multipolar magnet (14) is formed of a sintered element prepared by mixing and sintering a powdery mixture of a magnetic powder and a non-magnetic metallic powder. The multipolar magnet (14) is fixed on the core metal (11) by staking a portion of the core metal (11), and a sintered element/core metal assembly (21) fixed on the core metal (11) is surface treated to have with an anticorrosive resinous coating (22) for anticorrosive purpose. When the magnetic encoder is press-fitted on an encoder carrier member, one of a press-fitting punch and the magnetic encoder (10) is heated to a temperature within the range of 60 to 150°C. In order to provide an encoder with increased toughness, copper powder Cu should form part of the sintered powder mixture.
摘要:
To substantially eliminate deficiencies such as portions of the resinous coating, where the film thickness is reduced considerably during the press-fitting, and to aim at providing a high productivity with a reduced cost and without the possibility of occurrence of rusting after a prolonged time of use under severe environmental conditions due to an excellent anticorrosive property, a magnetic encoder (10) includes a multipolar magnet (14) having a plurality of alternating magnetic poles alternating with each other in a direction circumferentially thereof, and a core metal (11) supporting the multipolar magnet (14). The multipolar magnet (14) is formed of a sintered element prepared by mixing and sintering a powdery mixture of a magnetic powder and a non-magnetic metallic powder. The multipolar magnet (14) is fixed on the core metal (11) by staking a portion of the core metal (11), and a sintered element/core metal assembly (21) fixed on the core metal (11) is surface treated to have with an anticorrosive resinous coating (22) for anticorrosive purpose. When the magnetic encoder is press-fitted on an encoder carrier member, one of a press-fitting punch and the magnetic encoder (10) is heated to a temperature within the range of 60 to 150°C. In order to provide an encoder with increased toughness, copper powder Cu should form part of the sintered powder mixture.
摘要:
To provide a magnetic encoder which can be assembled having a thin-walled structure while securing an excellent detection sensitivity and which can provide an excellent moldability by suitably selecting materials, the magnetic encoder is provided which includes a multi-pole magnet 14 having a plurality of opposite magnetic poles alternating in a direction circumferentially thereof, and a core metal 11 for supporting the multi-pole magnet. The multi-pole magnet 14 contains a powdery magnetic material mixed in an amount within the range of 20 to 90 vol.% relative to the total volume of the multi-pole magnet 14. The multi-pole magnet 14 may be a sintered magnet.