# US 10,369,605 B2 · Rolling mill roll > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,369,605 B2 - Document ID: US10369605B2 - Status: Granted - Kind: B2 - Application number: 15/560,235 - Filed: 2016-03-25 - Published: 2018-03-15 - Granted: 2019-08-06 - Earliest claimed: 2015-03-27 - Assignees: Mitsubishi Materials Corporation - Applicants: Mitsubishi Materials Corporation - Inventors: Mitsuhiro Takatsuki; Hiroyuki Tanaka; Hiromasa Arimura; Tadamasa Miyagawa; Tsukasa Umeta - Web page: https://patentgrep.com/patent/US10369605B2 ## CPC - B21B 27/024: {Rolls for bars, rods, rounds, tubes, wire or the like} - B21B 27/035: {Rolls for bars, rods, rounds, tubes, wire or the like} - B21B: ROLLING OF METAL (auxiliary operations used in connection with metal-working operations covered in B21, see B21C; bending by rolling B21D; manufacture of particular objects, e.g. screws, wheels, rings, barrels, balls, by rolling B21H; pressure welding by means of a rolling mill B23K20/04) ## Abstract A rolling mill roll according to the present invention includes: a shaft member which rotates around an axial line; a rolling ring which is fitted to an outer circumferential surface of the shaft member; a support portion which is provided on the outer circumferential surface of the shaft member; an interposed ring which is fitted to the outer circumferential surface of the shaft member and is provided on the other side of the rolling ring in the axial line direction; a pressing nut which is screwed onto the outer circumferential surface of the shaft member and is disposed to be adjacent to the other side of the interposed ring; a screw hole which is formed to penetrate the pressing nut in the axial line direction; and a screw shaft which is screwed into the screw hole and which is capable of pressing the interposed ring toward the one side in the axial line direction. ## Claims ### Claim 1 A rolling mill roll, comprising: a shaft member which rotates around an axial line; a rolling ring which is fitted to an outer circumferential surface of the shaft member; a support portion which is provided on the outer circumferential surface of the shaft member and restrains a movement of the rolling ring toward one side in an axial line direction, with respect to the shaft member; an interposed ring which is fitted to the outer circumferential surface of the shaft member and is provided on the other side of the rolling ring in the axial line direction; a pressing nut which is screwed onto the outer circumferential surface of the shaft member and is disposed to be adjacent to the other side of the interposed ring in the axial line direction; a screw hole which is formed to penetrate the pressing nut in the axial line direction; and a screw shaft which is screwed into the screw hole and which is capable of pressing the interposed ring toward the one side in the axial line direction, wherein a fitting hole portion is formed on the pressing nut, and is open toward the one side in the axial line direction, the fitting hole portion has an inner circumference surface positioned further outside in a radial direction than the screw hole, the interposing ring has a fitting shaft portion fitted to the inside of the fitting hole portion, the inner circumference surface of the fitting hole portion and an outer circumferential surface of the fitting shaft portion are disposed to face each other in the radial direction, the screw shaft presses the interposing ring toward the one side in the axial line direction by pressing an end face located the other side of the fitting shaft portion in the axial line direction, at least a portion between the pressing nut and the interposed ring is sealed with a first annular seal member provided between the inner circumference surface of the fitting hole portion and an outer circumferential surface of the fitting shaft portion so as to restrain passage of a liquid from an outer circumference of the rolling mill roll to an inner circumference side of the rolling mill roll. ### Claim 2 (depends on 1) The rolling mill roll according to claim 1, wherein second annular seal members extending around the axial line are provided on both end surfaces of the rolling ring in the axial line direction. ### Claim 3 (depends on 2) The rolling mill roll according to claim 2, wherein a third annular seal member extending around the axial line is provided on an end surface on one side of the interposed ring in the axial line direction. ### Claim 4 (depends on 2) The rolling mill roll according to claim 2, wherein the end face of the fitting shaft portion has a portion quenched with high-frequency. ### Claim 5 (depends on 2) The rolling mill roll according to claim 2, wherein the support portion is a support nut which is screwed onto the outer circumferential surface of the shaft member and is disposed on one side of the rolling ring in the axial line direction. ### Claim 6 (depends on 1) The rolling mill roll according to claim 1, wherein a third annular seal member extending around the axial line is provided on an end surface on one side of the interposed ring in the axial line direction. ### Claim 7 (depends on 6) The rolling mill roll according to claim 6, wherein the end face of the fitting shaft portion has a portion quenched with high-frequency. ### Claim 8 (depends on 6) The rolling mill roll according to claim 6, wherein the support portion is a support nut which is screwed onto the outer circumferential surface of the shaft member and is disposed on one side of the rolling ring in the axial line direction. ### Claim 9 (depends on 1) The rolling mill roll according to claim 1, wherein the end face of the fitting shaft portion has a portion quenched with high-frequency. ### Claim 10 (depends on 9) The rolling mill roll according to claim 9, wherein the support portion is a support nut which is screwed onto the outer circumferential surface of the shaft member and is disposed on one side of the rolling ring in the axial line direction. ### Claim 11 (depends on 1) The rolling mill roll according to claim 1, wherein the support portion is a support nut which is screwed onto the outer circumferential surface of the shaft member and is disposed on one side of the rolling ring in the axial line direction.