Abstract: A retainer plate 7a is fitted on a smaller-diameter step portion 9a of an outer ring 5a, and a retaining ring 11 fitted on the smaller-diameter step portion 9a is engaged with retaining projections 15 formed on an inner circumferential surface of a fitting hole 12 formed through the retainer plate 7a, thereby preventing the retainer plate 7a from falling-off from the smaller-diameter step portion 9a. The structures and shapes of the various portions are so determined that working or machining can be easily effected to form these portions so as to overcome a problem encountered with the conventional structure.

Abstract: A retainer plate 7a is fitted on a smaller-diameter step portion 9a of an outer ring 5a, and a retaining ring 11 fitted on the smaller-diameter step portion 9a is engaged with retaining; projections 15 formed on an inner circumferential surface of a fitting hole 12 formed through the retainer plate 7a, thereby preventing the retainer plate 7a from falling-off from the smaller-diameter step portion 9a. The structures and shapes of the various portions are so determined that working or machining can be easily effected to form these portions so as to overcome a problem encountered with the conventional structure.

Abstract: An excrement treatment apparatus, wherein a hollow cup which is formed in such a shape that covers the private part and the anus of a human body having a hip part put on the upper side of a floor plate and in which at least the portion thereof in contact with the human body when the hollow cup abuts on the human body to cover the private part and the anus of the human body is formed of a soft elastic material is installed, in an upright state, contiguously with the upper side of the floor plate on which the hip part of the human body rests and in which at least the portion thereof in contact with the hip part of the human body put thereon is formed of the soft elastic material. An excrement discharge chamber having an excrement outflow space is formed inside the contiguously connected part of the floor plate with the hollow cup. A flushing means, a section/discharge means and a drying means are connected to the excrement discharge chamber and/or the hollow cup.

Abstract: A nursing care bed with a wheel chair facility that comprises a bed frame including a head board, a first bed body and a second bed body, the first bed body and second bed body extending longitudinally of the bed frame and spaced away from each other and each of the first and second bed bodies having one end secured to the corresponding lateral side of the head board, and a wheel chair having casters mounted beneath the bed frame for moving the wheel chair into or out of the bed frame between the first and second bed bodies.

Abstract: The surface roughness of the rolling surface 2 of the roller 1 along both the axial and circumferential direction is 0.06 .mu.m RA or less, while the surface roughness of the opposing inner ring raceway 4 is 0.08 to 0.15 .mu.m Ra along the axial direction, and 0.04 or less along the circumferential direction, whereby the heat generated by the roller bearing is kept to a minimum, and the danger of burning of the roller bearing is reduced.

Abstract: A fluid transfer apparatus has a pump housing, which is provided with a fluid intake opening, freely rotatable impeller with an integral base section and a fluid discharge opening. The impeller has several integral vane portions, which contain fluid channel routes within, extending radially from the base section. The liquid is drawn by the impeller into the pump housing, and enters the base section through fluid suction port of the impeller, and passes through the fluid channels of the vane portions to be discharged through the discharge opening of the pump housing.

Abstract: A clutch releasing apparatus comprises a clutch releasing bearing assembly including a clutch release bearing and a holder therefor. A support member of the holder is supported on a bearing support mechanism, and a separation prevention arrangement is provided such that the support member may be fitted on the support mechanism with a relatively small force, but necessitating a relatively large predetermined force to remove the support member from the support mechanism.

Abstract: An anti-degrading rubber article to be used in contact with a mineral oil containing an oil modifier, at least that surface of said rubber article which is to come into contact with said mineral oil being composed substantially of a vulcanization product, obtained by using a sulfur vulcanization system, of a copolymer rubber having polymer chains consisting of(1) 10 to 60% by weight of units derived from an unsaturated nitride,(2) 2 to 30% by weight of units derived from a conjugated diene, and(3) 88 to 10% by weight of units derived from a copolymerizable ethylenically unsaturated monomer other than the unsaturated nitride and/or units resulting from the hydrogenation of units derived from a conjugated diene.

Abstract: An auto-tensioner has a fixed portion fixed portion fixed to a base, a displaceable device displaceable with respect to the fixed portion and contacting a belt, a tensioning device for urging the displaceable device so as to impart a tension to the belt while absorbing a portion of any fluctuation in the tension, and a vibration absorbing device disposed between the fixed portion and the displaceable device and capable of absorbing a portion of the fluctuation in the tension. The vibration absorption device includes a multi-disk fluid viscosity vibration damper having a least one fixed disk member fixed in relation to the fixed portion, at least one displaceable disk member displaceable together with the displaceable device, and a fluid which produces a viscosity resistance against the displacement of the displaceable disk member with respect to the fixed disk member.

Abstract: A rubber article with excellent oil resistance and aging resistance to be used in contact with a polyolefin oil or a lubricating oil containing a polyolefin oil, at least the surface of the rubber article being contacted with said oil, said rubber article being composed substantially of a vulcanized product of a copolymer rubber comprising (1) 10 to 60% by weight of units derived from an unsaturated nitrile, (2) 0 to 30% by weight of units derived from a conjugated diene, and (3) 90 to 10% by weight of units derived from an ethylenically unsaturated monomer other than the unsaturated nitrile and/or units resulting from the hydrogenation of units derived from a conjugated diene.

Abstract: A belt comprising a copolymer rubber and fibers and having strong adhesion strength even after heat-aging in air or oil and repeated deformation. The copolymer rubber has in its polymer chain (1) 10 to 60% by weight of units derived from an unsaturated nitrile, (2) 0 to 30% by weight of units derived from a conjugated diene and (3) 10 to 90% by weight of units derived from an ethylenically unsaturated monomer other than unsaturated nitriles and/or units formed by hydrogenating units derived from a conjugated diene.