Abstract: A rotational speed reduction device 1 for a truck tailgate includes a housing 5, a rotor 8 disposed inside the housing 5, a viscous fluid 14a accommodated in an inner space 13a, passages 15a and 16a provided in the rotor 8, a one-way valve 19 disposed in the passage 15a, and a one-way valve 20a disposed in the passage 16a.

Abstract: A thrust sliding bearing 1 includes a synthetic resin-made lower casing 2, a synthetic resin-made upper casing 3 superposed on the lower casing 2, and a synthetic resin-made thrust sliding bearing piece 4 interposed between said upper casing 3 and the lower casing 2.

Abstract: A synthetic resin-made thrust sliding bearing 1 includes a synthetic resin-made upper casing 100, a synthetic resin-made lower casing 200, and a synthetic resin-made thrust bearing piece 300 interposed between the upper and lower casings 100 and 200. If it is assumed that the radial length of the thrust bearing piece 300 up to its outer peripheral surface 303 is (r), and the thickness of an upper annular plate portion 102 at its inner peripheral surface is (t), the upper casing 100 has on its upper surface 108 an annular flat surface 109 having a circular outer peripheral edge with R in a range of R=r±t.

Abstract: A synthetic resin-made thrust sliding bearing includes a synthetic resin-made upper casing, a synthetic resin-made lower casing, and a synthetic resin-made thrust sliding bearing piece interposed between the upper casing and the lower casing.

Abstract: A sliding bearing 1 including an upper casing 3 having an annular lower surface 2; a lower casing 5 which is superposed on the upper casing 3 so as to be rotatable about an axis O of the upper casing 3 and has an annular upper surface 4 opposed to the annular lower surface 2 of the upper casing 3; an annular thrust sliding bearing piece 7 disposed in an annular space 6 between the annular lower surface 2 and the annular upper surface 4; a seal 8 disposed on an outer peripheral side of the annular space 6; and a seal 9 disposed on an inner peripheral side of the annular space 6.

Abstract: A synthetic resin-made thrust sliding bearing 1 includes a synthetic resin-made upper casing 100, a synthetic resin-made lower casing 200, and a synthetic resin-made thrust bearing piece 300 interposed between the upper and lower casings 100 and 200. If it is assumed that the radial length of the thrust bearing piece 300 up to its outer peripheral surface 303 is (r), and the thickness of an upper annular plate portion 102 at its inner peripheral surface is (t), the upper casing 100 has on its upper surface 108 an annular flat surface 109 having a circular outer peripheral edge with R in a range of R=r±t.

Abstract: A synthetic resin-made thrust sliding bearing 1 includes a synthetic resin-made upper casing 12, a synthetic resin-made lower casing 22, a synthetic resin-made thrust sliding bearing piece 33 interposed between the upper casing 12 and the lower casing 22, an outer elastic seal member 47 having an inner elastically deformable lip portion 43 and an outer elastically deformable lip portion 46, and an inner elastic seal member 54 having an outer elastically deformable lip portion 50 and an inner elastically deformable lip portion 53.

Abstract: A thrust sliding bearing includes an synthetic resin-made annular bearing body having an annular upper surface, an annular outer peripheral surface, and an annular lower surface; a synthetic resin-made annular bearing body having an annular lower surface; a sheet metal-made reinforcement member having an annular lower surface and an annular upper surface; a synthetic resin-made thrust sliding bearing piece interposed between the annular upper surface of the reinforcement member and the annular lower surface of the bearing body; and a synthetic resin-made radial sliding bearing piece disposed between an annular inner peripheral surface of a hollow cylindrical portion of the reinforcement member and an annular outer peripheral surface of a hollow cylindrical portion of the bearing body.

Abstract: In a synthetic resin-made thrust sliding bearing, a silicone grease whose base oil is a silicone oil, whose coefficient of kinematic viscosity at 25° C. is not less than 100 cSt and not more than 500,000 cSt, and which contains a thickener so as to set its worked penetration to not less than 200 and not more than 400 is interposed at sliding interfaces between, on the one hand, an upper surface of a lower annular flat plate-shaped portion defining a bottom surface of a lower annular recess and a lower surface of an upper annular flat plate-shaped portion and, on the other hand, an upper surface and a lower surface of a thrust bearing piece which are respectively brought into sliding contact with the upper and the lower surface.

Abstract: A synthetic resin-made thrust sliding bearing includes a synthetic resin-made upper casing, a synthetic resin-made lower casing, and a synthetic resin-made thrust sliding bearing piece interposed between the upper casing and the lower casing.

Abstract: A synthetic resin-made thrust sliding bearing includes a synthetic resin-made upper casing, a synthetic resin-made lower casing, and a synthetic resin-made thrust sliding bearing piece interposed between the upper casing and the lower casing.

Abstract: In a synthetic resin-made thrust sliding bearing, a silicone grease whose base oil is a silicone oil, whose coefficient of kinematic viscosity at 25° C. is not less than 100 cSt and not more than 500,000 cSt, and which contains a thickener so as to set its worked penetration to not less than 200 and not more than 400 is interposed at sliding interfaces between, on the one hand, an upper surface of a lower annular flat plate-shaped portion defining a bottom surface of a lower annular recess and a lower surface of an upper annular flat plate-shaped portion and, on the other hand, an upper surface and a lower surface of a thrust bearing piece which are respectively brought into sliding contact with the upper and the lower surface.

Abstract: In a synthetic resin-made thrust sliding bearing, a silicone grease whose base oil is a silicone oil, whose coefficient of kinematic viscosity at 25° C. is not less than 100 cSt and not more than 500,000 cSt, and which contains a thickener so as to set its worked penetration to not less than 200 and not more than 400 is interposed at sliding interfaces between, on the one hand, an upper surface of a lower annular flat plate-shaped portion defining a bottom surface of a lower annular recess and a lower surface of an upper annular flat plate-shaped portion and, on the other hand, an upper surface and a lower surface of a thrust bearing piece which are respectively brought into sliding contact with the upper and the lower surface.

Abstract: A thrust sliding bearing 1 includes a synthetic resin-made lower casing 2, a synthetic resin-made upper casing 3 superposed on the lower casing 2, and a synthetic resin-made thrust sliding bearing piece 4 interposed between said upper casing 3 and the lower casing 2.

Abstract: A synthetic resin-made thrust sliding bearing 1 includes a synthetic resin-made upper casing 12, a synthetic resin-made lower casing 22, a synthetic resin-made thrust sliding bearing piece 33 interposed between the upper casing 12 and the lower casing 22, an outer elastic seal member 47 having an inner elastically deformable lip portion 43 and an outer elastically deformable lip portion 46, and an inner elastic seal member 54 having an outer elastically deformable lip portion 50 and an inner elastically deformable lip portion 53.

Abstract: A rotational speed reduction device 1 for a truck tailgate includes a housing 5, a rotor 8 disposed inside the housing 5, a viscous fluid 14a accommodated in an inner space 13a, passages 15a and 16a provided in the rotor 8, a one-way valve 19 disposed in the passage 15a, and a one-way valve 20a disposed in the passage 16a.

Abstract: A thrust sliding bearing 1 includes a synthetic resin-made lower casing 2, a synthetic resin-made upper casing 3 superposed on the lower casing 2, and a synthetic resin-made thrust sliding bearing piece 4 interposed between said upper casing 3 and the lower casing 2.

Abstract: A synthetic resin-made thrust sliding bearing 1 includes a synthetic resin-made upper casing 12, a synthetic resin-made lower casing 22, a synthetic resin-made thrust sliding bearing piece 33 interposed between the upper casing 12 and the lower casing 22, an outer elastic seal member 47 having an inner elastically deformable lip portion 43 and an outer elastically deformable lip portion 46, and an inner elastic seal member 54 having an outer elastically deformable lip portion 50 and an inner elastically deformable lip portion 53.

Abstract: A thrust sliding bearing 1 includes an synthetic resin-made annular bearing body 5 having an annular upper surface 2, an annular outer peripheral surface 3, and an annular lower surface 4; a synthetic resin-made annular bearing body 7 having an annular lower surface 6; a sheet metal-made reinforcement member 10 having an annular lower surface 8 and an annular upper surface 9; a synthetic resin-made thrust sliding bearing piece 11 interposed between the annular upper surface 9 of the reinforcement member 10 and the annular lower surface 6 of the bearing body 7; and a synthetic resin-made radial sliding bearing piece 16 disposed between an annular inner peripheral surface 13 of a hollow cylindrical portion 12 of the reinforcement member 10 and an annular outer peripheral surface 15 of a hollow cylindrical portion 14 of the bearing body 7.

Abstract: A thrust sliding bearing 1 includes: a synthetic resin-made upper casing 3 which has a vehicle body-side seat surface 10 for a mounting member 8 on a vehicle body side and an annular lower surface 2; a synthetic resin-made lower casing 5 on which an annular upper surface 4 opposed to the annular lower surface 2 and a spring seat surface 25 for a suspension coil spring 7 are integrally formed, and which is superposed on the upper casing 3 so as to be rotatable about an axis O of the upper casing 3 in an R direction; and a synthetic resin-made thrust sliding bearing piece 6 which is disposed in an annular gap 9 between the annular lower surface 2 and the annular upper surface 4, and has an annular thrust sliding bearing surface 51 which slidably abuts against at least one of the annular lower surface 2 and the annular upper surface 4.