# US 10,865,863 B2 · Power take-off drive gear thrust load canceling > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,865,863 B2 - Document ID: US10865863B2 - Status: Granted - Kind: B2 - Application number: 16/319,088 - Filed: 2017-07-19 - Published: 2019-12-19 - Granted: 2020-12-15 - Earliest claimed: 2016-07-20 - Assignees: Eaton Cummins Automated Transmission Technologies, LLC - Applicants: Eaton Cummins Automated Transmission Technologies LLC - Inventors: Graeme A. Jackson - Web page: https://patentgrep.com/patent/US10865863B2 ## CPC - B60K 25/06: from the transmission power take-off - F16H 37/046: {with an additional planetary gear train, e.g. creep gear, overdrive} - B60K 17/28: characterised by arrangement, location, or type of power take-off - F16H 3/0915: {with coaxial input and output shafts} - F16H 3/095: with means for ensuring an even distribution of torque between the countershafts - F16H 3/097: the input and output shafts being aligned on the same axis - B60Y 2410/102: Shaft arrangements; Shaft supports, e.g. bearings - F16H 2003/123: {using a brake} - F16H 2200/0069: the gear ratios comprising ten forward speeds - F16H 2200/0078: the gear ratio comprising twelve or more forward speeds - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES - F16H: GEARING - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY ## Abstract A transmission includes a countershaft, an input shaft and a clutch that couples the input shaft to the countershaft, a main transmission assembly having a main shaft and a main transmission clutch, the main shaft coupled to the countershaft via the main transmission clutch, and a range gear assembly. The transmission includes a power take-off shaft coupled to an axial end of the countershaft and colinear therewith, wherein the power take-off shaft and the countershaft are rotationally coupled to one another and axially decoupled from one another. ## Claims ### Claim 1 A transmission, comprising: a countershaft; an input shaft and a clutch that couples the input shaft to the countershaft; a main transmission assembly having a main shaft and a main transmission clutch, the main shaft coupled to the countershaft via the main transmission clutch; a range gear assembly; and a power take-off shaft coupled to an axial end of the countershaft and co-linear therewith, wherein the power take-off shaft and the countershaft are rotationally coupled to one another and axially decoupled from one another by a spline joint, further comprising a thrust bearing coupled to the power take-off shaft, the thrust bearing positioned at an end of the power take-off shaft that is opposite an end of the power take-off shaft where the spline joint is positioned. ### Claim 2 (depends on 1) The transmission of claim 1, wherein the thrust bearing is a ball bearing. ### Claim 3 A transmission, comprising: two countershafts; an input shaft and a clutch that couples the input shaft to the two countershafts; a main transmission assembly having a main shaft and a main shaft clutch, the main shaft coupled to the two countershafts via the main shaft clutch; a range gear assembly; and a power take-off shaft coupled to an axial end of one of the two countershafts and co-linear therewith, wherein the power take-off shaft and the one countershaft are rotationally coupled to one another and axially decoupled from one another by a spline joint, further comprising a thrust bearing coupled to the power take-off shaft, the thrust bearing positioned at an end of the power take-off shaft that is opposite an end of the power take-off shaft where the spline joint is positioned. ### Claim 4 (depends on 3) The transmission of claim 3, further comprising a cylindrical ball bearing coupled to the one countershaft, wherein an end of the countershaft that is proximate the spline is radially supported by the cylindrical ball bearing. ### Claim 5 (depends on 3) The transmission of claim 3, wherein the thrust bearing is a ball bearing. ### Claim 6 (depends on 3) The transmission of claim 3, wherein the range gear assembly includes an annulus gear, a sun gear, a planet gear, and a center shaft that provides output from the transmission. ### Claim 7 (depends on 3) The transmission of claim 3, further comprising: a front input shaft coupled directly to a main transmission clutch and having a first clutch coupled to the countershaft; and a rear input shaft coupled to the front input shaft and having a second clutch coupled to the countershaft. ### Claim 8 A transmission, comprising: a main transmission assembly having a main shaft and a main shaft clutch, the main shaft coupled to a countershaft via a main shaft clutch; a planetary gear assembly having a center shaft that provides output from the transmission, the planetary gear assembly further including an annulus gear, a sun gear, and a planet gear; and a power take-off shaft coupled to an axial end of the countershaft and co-linear therewith, wherein the power take-off shaft and the countershaft are rotationally coupled to one another and axially decoupled from one another, further comprising a thrust bearing coupled to the power take-off shaft, the thrust bearing positioned at an end of the power take-off shaft that is opposite an end of the power take-off shaft where a spline joint connects the power take-off shaft to the countershaft. ### Claim 9 (depends on 8) The transmission of claim 8, further comprising a cylindrical ball bearing coupled to the countershaft, wherein an end of the countershaft that is proximate the spline is radially supported by the cylindrical ball bearing. ### Claim 10 (depends on 8) The transmission of claim 8, wherein the thrust bearing is a ball bearing.