# US 11,077,484 B2 · Rotary caulking device, method of manufacturing hub unit bearing and method of manufacturing vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,077,484 B2 - Document ID: US11077484B2 - Status: Granted - Kind: B2 - Application number: 16/634,715 - Filed: 2018-10-25 - Published: 2020-09-24 - Granted: 2021-08-03 - Earliest claimed: 2017-11-20 - Assignees: Nsk Ltd. - Applicants: NSK Ltd. - Inventors: Nobuyuki Hagiwara; Tsuyoshi Kamoda - Web page: https://patentgrep.com/patent/US11077484B2 ## CPC - B21J 9/025: {with rolling or wobbling dies} - B21D 39/00: Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating ({joining mitred profiles B21D53/745; } riveting B21J; uniting components by forging or pressing to form integral members B21K25/00; welding B23K; press-fitting, force-fitting, or shrinking in general B23P11/00, B21D19/00; by adhesives F16B11/00 {; Connections as such F16L, F16B}); Tube expanders - B21D 53/10: parts of bearings; sleeves; valve seats or the like - B21K 1/05: cages for bearings - B21K 25/00: Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components (uniting by interference- or press-fitting B23P11/02, B21K19/02) - B60B 27/02: adapted to be rotatably arranged on axle - F16C 19/38: with two or more rows of rollers - F16C 35/063: Fixing them on the shaft (with interposition of an element F16C35/07) - F16C 2326/02: Wheel hubs or castors - B21J: FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES (rolling of metal B21B; making particular products by forging or pressing B21K; cladding or plating B23K; finishing surfaces by hammering B23P9/04; compacting surfaces by blasting with particulate material B24C1/10; general features of presses, presses for consolidating scrap B30B; furnaces in general F27) - B21D: WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL (working or processing of wire B21F) - B21K: MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS (making particular articles by working sheet metal without essentially removing material B21D; processing wire B21F; making pins, needles or nails B21G; making particular articles by rolling B21H; forging machines, pressing machines, hammering machines, in general B21J; making chains B21L; plating B23K) - B60B: VEHICLE WHEELS (making wheels or wheel parts by rolling B21H1/00, by forging, hammering or pressing B21K1/28); CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION - F16C: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS ## Abstract A hub main body (13z) is supported by a support portion (18). At least one block (22) is engaged with a stationary flange (6) of an outer ring (2). As a support plate (21) rotates, the outer ring (2) rotates. A caulking portion (16) is formed by pressing a pressing die (20) on a cylindrical portion (31). ## Claims ### Claim 1 A method of manufacturing a vehicle including a hub unit bearing, wherein the hub unit bearing is manufactured using a rotary caulking device, the hub unit bearing including: an outer ring which includes an outer ring raceway having double rows on an inner circumferential surface thereof and a stationary flange protruding radially outward; a hub which includes an inner ring raceway having double rows on an outer circumferential surface thereof; and a plurality of rolling elements which are rotatably disposed between the inner ring raceway and the outer ring raceway, wherein the stationary flange includes a plurality of protruding portions which protrude outward in a radial direction thereof, and the hub includes a hub main body and an inner ring, in which the inner ring is externally fitted into a portion near one axial end portion of the hub main body, and the one axial end portion of the inner ring is pressed and held by a caulking portion formed by plastically deforming a cylindrical portion provided at the one axial end portion of the hub main body radially outward, the rotary caulking device including: a support portion including a reference axis; an annular support plate which is supported to be able to move close to and away from the support portion and which can be driven to rotate about a central axis coaxial with the reference axis; a rotary drive unit including blocks which are supported at one or more places of a circumference of the support plate to be able to be displaced in an axial direction thereof; and a pressing die which is supported to be able to perform a rotating motion about a main axis coaxial with the reference axis, and is rotatably supported about a rotation axis inclined relative to the main axis, the method of manufacturing the hub unit bearing comprising the processes of: supporting the hub main body on the support portion such that a central axis of the hub main body is coaxial with the reference axis; engaging a tip portion of the blocks with the stationary flange such that power in a rotating direction thereof can be transmitted by displacing the rotary drive unit in the axial direction; driving the outer ring to rotate by driving the rotary drive unit to rotate; and forming the caulking portion by plastically deforming the cylindrical portion radially outward by pressing a tip portion of the pressing die on the cylindrical portion while rotating the pressing die around the main axis, wherein a rolling bearing or a slide bearing is provided at a tip portion of the blocks. ### Claim 2 (depends on 1) The method of manufacturing a vehicle according to claim 1, wherein the blocks are supported at a plurality of places of the support plate in a circumferential direction thereof. ### Claim 3 (depends on 1) The method of manufacturing a vehicle according to claim 1, wherein elastic forces directed in a direction toward the support portion with respect to the axial direction are applied to the blocks. ### Claim 4 (depends on 3) The method of manufacturing a vehicle according to claim 3, wherein elastic members are installed between the support plate and the blocks. ### Claim 5 (depends on 1) The method of manufacturing a vehicle according to claim 1, wherein the blocks are rotatably supported. ### Claim 6 (depends on 1) The method of manufacturing a vehicle according to claim 1, wherein the rolling bearing is made of a synthetic resin. ### Claim 7 (depends on 1) The method of manufacturing a vehicle according to claim 1, wherein the slide bearing is made of a synthetic resin. ### Claim 8 A method of manufacturing a vehicle including a hub unit bearing, wherein the hub unit bearing is manufactured by a method comprising: supporting a hub main body; and caulking the hub main body to which an inner ring is attached; wherein the caulking includes: pressing a pressing die on the hub main body while the pressing die rotates; and moving an outer ring around an axis of the hub main body via an adapter, and the adapter includes: adapter main body; and at least one block which is held in the adapter main body, and is disposed to be movable in an axial direction of the hub main body relative to the adapter main body, wherein at least a portion of the block is made of a resin material. ### Claim 9 (depends on 8) The method of manufacturing a vehicle according to claim 8, wherein each of the at least one block is disposed to be movable in the axial direction between a protruding state in which the block at least partially protrudes in the axial direction from the adapter main body, and a housed state, in the housed state, an axial end face of the block abuts a first surface of the outer ring, and in the protruding state, a side surface of the block is disposed to face a second surface of the outer ring. ### Claim 10 (depends on 8) The method of manufacturing a vehicle according to claim 8, wherein the adapter includes a biasing member which is configured to apply a force in a direction toward the bearing unit to the block.