# US 10,765,055 B2 · Greaseless bushing for agricultural row unit > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,765,055 B2 - Document ID: US10765055B2 - Status: Granted - Kind: B2 - Application number: 15/896,225 - Filed: 2018-02-14 - Published: 2018-08-16 - Granted: 2020-09-08 - Earliest claimed: 2017-02-14 - Assignees: Harvest International, Inc. - Applicants: Harvest International, Inc. - Inventors: Jeffrey Alan Sivinski - Web page: https://patentgrep.com/patent/US10765055B2 ## CPC - A01B 71/04: Bearings of rotating parts, e.g. for soil-working discs - A01B 63/163: {laterally adjustable} - A01C 5/064: {with rotating tools} - A01C 5/068: {Furrow packing devices, e.g. press wheels} - A01C 7/201: {Mounting of the seeding tools} - F16C 17/02: for radial load only - F16C 33/723: {Shaft end sealing means, e.g. cup-shaped caps or covers} - F16C 33/20: Sliding surface consisting mainly of plastics (F16C33/22 - F16C33/28 take precedence) - F16C 33/74: of sliding-contact bearings - F16C 2226/60: with threaded parts, e.g. bolt and nut connections - F16C 2310/00: Agricultural machines - A01B: SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL (making or covering furrows or holes for sowing, planting or manuring A01C5/00; mowers convertible to soil working apparatus or capable of soil working A01D42/04; mowers combined with soil working implements A01D43/12; soil working for engineering purposes E01, E02, E21) - A01C: PLANTING; SOWING; FERTILISING (parts, details or accessories of agricultural machines or implements, in general A01B51/00 - A01B75/00) - F16C: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS ## Abstract A greaseless bushing assembly for the gauge wheel arms of an agricultural row planter. The greaseless bushing includes an outer threaded tube for threaded mounting within the gauge wheel arm, and an internal non-metallic sleeve through which the wheel bolt extends for mounting the gauge wheel onto the arm. The sleeve provides dry lubrication for the bushing. The bushing may also include a lip or wiper seal at each end to prevent entry of dust into the bushing. ## Claims ### Claim 1 A greaseless bushing assembly for a row planter, having a frame, a pair of discs on the frame to form a furrow in the ground, and a pair of gauge wheels mounted on arms on the frame on opposite sides of the discs, the greaseless bushing assembly comprising: an outer tube for threaded externally substantially along its length for threaded receipt in one of the arms of the frame; a jam nut on the outer tube threads to adjustably lock the bushing assembly on the one arm; and an internal non-metallic sleeve through which a bolt extends for mounting one of the arms to the frame. ### Claim 2 (depends on 1) The greaseless bushing assembly of claim 1 further comprising dust seals on each end of the outer tube. ### Claim 3 (depends on 2) The greaseless bushing assembly of claim 2 wherein the dust seals are wiper-type seals. ### Claim 4 (depends on 2) The greaseless bushing assembly of claim 2 wherein the dust seals are a V-shaped in cross section. ### Claim 5 (depends on 1) The greaseless bushing assembly of claim 1 wherein one end of the outer tube has opposing flat sides for receiving a wrench. ### Claim 6 A row planter comprising: a frame, a pair of discs on the frame to form a furrow in the ground; a pair of gauge wheels each being adjustably mounted on the frame by an arm; a greaseless bushing extending through the arm to mount each gauge wheel onto the frame; the bushing having external threads substantially along its length extending into and out of the arm; a lock nut on the threads of the bushing adjacent the arm to allow the bushing to be adjustably locked relative the arm; and a bolt extending through the bushing and into the frame for mounting the arm to the frame. ### Claim 7 (depends on 6) The row planter of claim 6 wherein the greaseless bushing includes an inner sleeve made of a composite, non-metallic material. ### Claim 8 (depends on 6) The row planter of claim 6 wherein one end of the bushing has opposing flat sides for receiving a wrench. ### Claim 9 (depends on 6) The row planter of claim 6 further comprising dust seals on each end of the bushing. ### Claim 10 (depends on 9) The row planter of claim 9 wherein the dust seals are wiper-type seals. ### Claim 11 (depends on 9) The row planter of claim 9 wherein the dust seals are a V-shaped in cross section. ### Claim 12 (depends on 6) The row planter of claim 6 wherein the greaseless bushing includes an outer threaded tube for threaded receipt in one of the arms of the frame and an internal non-metallic sleeve through which a bolt extends for mounting one of the gauge wheels onto the an arm of the frame. ### Claim 13 A method of mounting a gauge wheel onto a frame of an agricultural row unit, comprising: threading a greaseless bushing having external threads substantially along its full length into one end of a wheel arm mounted on the frame; adjustably locking the bushing relative to the arm with a jam nut on the bushing threads; and inserting a zerk-free bolt through the greaseless bushing on a wheel arm and into the frame. ### Claim 14 (depends on 13) The method of claim 13 further comprising loosening the jam nut and adjusting the bushing in the wheel arm. ### Claim 15 (depends on 14) The method of claim of claim 14 wherein the greaseless bushing has an outer threaded tube for threaded receipt in one of the arms of the frame to allow for the rotation of the greaseless bushing. ### Claim 16 (depends on 13) The method of claim 13 further comprising loosening the jam nut and rotating the bushing to laterally adjust the bushing relative to the wheel arm. ### Claim 17 (depends on 13) The method of claim 13 further comprising sealing the ends of the bushing to prevent dust entering the bushing. ### Claim 18 (depends on 13) The method of claim 13 further comprising dry lubricating the bushing with an internal, non-metallic composite sleeve.