# US 8,770,845 B1 · Rotary bearing and method of manufacture > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,770,845 B1 - Document ID: US8770845B1 - Status: Granted - Kind: B1 - Application number: 13/676,209 - Filed: 2012-11-14 - Granted: 2014-07-08 - Earliest claimed: 2012-11-14 - Applicants: Mark Hunt; Chad M. Daigle - Inventors: Mark Hunt; Chad M. Daigle - Web page: https://patentgrep.com/patent/US8770845B1 ## CPC - F16C 33/26: made from wire coils; made from a number of discs, rings, rods, or other members - F16C 33/043: {Sliding surface consisting mainly of ceramics, cermets or hard carbon, e.g. diamond like carbon [DLC]} - F16C 33/08: Attachment of brasses, bushes or linings to the bearing housing - F16C 17/02: for radial load only - F16C 2206/40: Ceramics, e.g. carbides, nitrides, oxides, borides of a metal - F16C 2206/56: based on ceramic carbides, e.g. silicon carbide (SiC) - F16C: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS ## Abstract A bearing assembly and method of construction that provides a bearing having a plurality of individual flat bearing disc inserts, such as carbide inserts, supported directly upon a flat insert support surface. The method of construction utilizes a mold for simultaneously brazing the inserts to the bearing surface. ## Claims ### Claim 1 A bearing assembly comprising: (a) a support member, said support member having a plurality of bearing insert retainer slots, each said slot having a fiat bearing surface; (b) a plurality of flat bearing disc inserts positioned within each said bearing insert retainer slot against said flat bearing surface; and (c) brazing material positioned around each of said flat bearing disc inserts in each said bearing insert retainer slot whereby when heat is applied to said brazing material said bearing disc inserts will simultaneously be brazed and held in place within said bearing insert retainer slots. ### Claim 2 (depends on 1) The bearing assembly as recited in claim 1 wherein said bearing disc inserts and said brazing material are positioned between a brazing mold and said support member. ### Claim 3 (depends on 1) The radial bearing assembly as recited in claim 1 wherein each said bearing disc insert and said brazing material is positioned between said tubular support member and a brazing mold. ### Claim 4 (depends on 3) The radial bearing assembly as recited in claim 3 wherein said bearing insert retainer slots are radially spaced apart around the exterior periphery of said tubular support member. ### Claim 5 (depends on 3) The radial bearing assembly as recited in claim 3 wherein said bearing insert retainer slots are radially spaced apart around the interior periphery of said tubular support member. ### Claim 6 (depends on 3) The radial bearing assembly as recited in claim 3 wherein each said slot retains at least one bearing insert. ### Claim 7 (depends on 3) The radial bearing assembly as recited in claim 3 wherein said disc inserts are carbide inserts. ### Claim 8 A radial bearing assembly comprising: (a) a tubular support member, said support member having a plurality of longitudinally extending, radially spaced, bearing insert retainer slots, each said bearing insert retainer slot having a flat bearing surface; (b) a plurality of flat bearing disc inserts positioned within each said bearing insert retainer slot; and (c) brazing material positioned around each said bearing disc insert in each said bearing insert retainer slot whereby when heat is applied to said brazing material, each said bearing disc insert positioned within each said bearing insert retainer slot will be simultaneously brazed and held in place within said bearing insert retainer slot against said flat bearing surface of said retainer slot. ### Claim 9 A radial bearing assembly comprising: (a) a tubular support member, said support member having a plurality of longitudinally extending, radially spaced, bearing insert retainer slots, each said slot having a flat bearing surface; (b) (c) a plurality of flat bearing disc inserts positioned between said tubular support member within each said bearing insert retainer slot against said flat bearing surface of said bearing insert retainer slot; and (c) brazing material fed into a space created between said tubular support member and a removable tubular brazing mold, whereby when heat is applied to said brazing material, each said disc insert, positioned within each said bearing insert retainer slot will be simultaneously brazed and held in place within said bearing insert retainer slot against said flat bearing surface of said retainer slot. ### Claim 10 (depends on 9) The radial bearing assembly as recited in claim 9 wherein when said brazing mold is removed, each said bearing disc insert discs is held in place within said bearing insert retainer slot by said brazing material. ### Claim 11 (depends on 10) The radial bearing assembly as recited in claim 10 wherein said slots are radially spaced apart around the exterior periphery of said tubular support member. ### Claim 12 (depends on 10) The radial bearing assembly as recited in claim 10 wherein said slots are radially spaced apart around the interior periphery of said tubular support member. ### Claim 13 (depends on 10) The radial bearing assembly as recited in claim 10 wherein each said slot retains at least one bearing insert disc. ### Claim 14 A radial bearing assembly comprising: (a) a tubular support member, said support member having a plurality of longitudinally extending, radially spaced and longitudinally staggered bearing insert retainer slots each said slot having a flat bearing surface; (b) a plurality of flat bearing disc inserts positioned between said tubular support member within each said bearing insert retainer slot against said flat bearing surface of said bearing insert retainer slot; and (c) brazing material fed into a space created between said tubular support member, whereby when heat is applied to said brazing material, each said disc insert positioned within each said bearing insert retainer slot will be simultaneously brazed and held in place within said bearing insert retainer slot against said flat bearing surface of said retainer slot. ### Claim 15 (depends on 14) The radial bearing assembly as recited in claim 14 wherein each said bearing disc insert discs is held in place within said bearing insert retainer slot by said brazing material. ### Claim 16 (depends on 15) The radial hearing assembly as recited in claim 15 wherein said slots are longitudinally staggered relative to each other and radially spaced apart around the exterior periphery of said tubular support member. ### Claim 17 (depends on 15) The radial bearing assembly as recited in claim 15 wherein said slots are longitudinally staggered relative to each other and radially spaced apart around the interior periphery of said tubular support member. ### Claim 18 (depends on 15) The radial bearing assembly as recited in claim 15 wherein each said slot retains at east one bearing insert disc.