PINION SHAFT AND PLANETARY GEAR DEVICE
PROBLEM TO BE SOLVED: To reduce polishing allowance and to reduce variation in the C and N contents on a surface. SOLUTION: A pinion shaft 4e is made of a steel containing 0.5-1.2 wt.% of C, and has a surface layer having an N content of 0.05-0.4 wt.%, a Vickers hardness of Hv 650 or higher obtained...
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| creator | YOSHIKAWA TOMONOBU |
| description | PROBLEM TO BE SOLVED: To reduce polishing allowance and to reduce variation in the C and N contents on a surface. SOLUTION: A pinion shaft 4e is made of a steel containing 0.5-1.2 wt.% of C, and has a surface layer having an N content of 0.05-0.4 wt.%, a Vickers hardness of Hv 650 or higher obtained by induction hardening and a residual austenite amount of 15-40 vol.%. When the length of the shaft is represented by L (mm), the diameter of the shaft is represented by Da (mm), the diameter of an oil hole in the axial direction is represented by b (mm), and the length of the oil hole in the axial direction is represented by I(mm), the relation of I≥3L/5 is satisfied in the case of 20 mm≤Da-b, the relation of I≥(-Da+b+65 mm)L/75 is satisfied in the case of 5 mm≤Da-b |
| format | Patent |
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SOLUTION: A pinion shaft 4e is made of a steel containing 0.5-1.2 wt.% of C, and has a surface layer having an N content of 0.05-0.4 wt.%, a Vickers hardness of Hv 650 or higher obtained by induction hardening and a residual austenite amount of 15-40 vol.%. When the length of the shaft is represented by L (mm), the diameter of the shaft is represented by Da (mm), the diameter of an oil hole in the axial direction is represented by b (mm), and the length of the oil hole in the axial direction is represented by I(mm), the relation of I≥3L/5 is satisfied in the case of 20 mm≤Da-b, the relation of I≥(-Da+b+65 mm)L/75 is satisfied in the case of 5 mm≤Da-b<20 mm, and the relation of I≥4L/5 is satisfied in the case of Da-b<5 mm. 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COPYRIGHT: (C)2007,JPO&INPIT</description><subject>ALLOYS</subject><subject>BLASTING</subject><subject>CHEMISTRY</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>GEARING</subject><subject>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>METALLURGY</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2006</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFAL8PTz9PdTCPZwdAtRcPRzUQjwcfRzDXEMilRwd3UMUnBxDfN0duVhYE1LzClO5YXS3AxKbq4hzh66qQX58anFBYnJqXmpJfFeAUYGBmbGJkaWBiaOxkQpAgDrQiOy</recordid><startdate>20061221</startdate><enddate>20061221</enddate><creator>YOSHIKAWA TOMONOBU</creator><scope>EVB</scope></search><sort><creationdate>20061221</creationdate><title>PINION SHAFT AND PLANETARY GEAR DEVICE</title><author>YOSHIKAWA TOMONOBU</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2006342904A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2006</creationdate><topic>ALLOYS</topic><topic>BLASTING</topic><topic>CHEMISTRY</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>GEARING</topic><topic>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>METALLURGY</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>YOSHIKAWA TOMONOBU</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>YOSHIKAWA TOMONOBU</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>PINION SHAFT AND PLANETARY GEAR DEVICE</title><date>2006-12-21</date><risdate>2006</risdate><abstract>PROBLEM TO BE SOLVED: To reduce polishing allowance and to reduce variation in the C and N contents on a surface. SOLUTION: A pinion shaft 4e is made of a steel containing 0.5-1.2 wt.% of C, and has a surface layer having an N content of 0.05-0.4 wt.%, a Vickers hardness of Hv 650 or higher obtained by induction hardening and a residual austenite amount of 15-40 vol.%. When the length of the shaft is represented by L (mm), the diameter of the shaft is represented by Da (mm), the diameter of an oil hole in the axial direction is represented by b (mm), and the length of the oil hole in the axial direction is represented by I(mm), the relation of I≥3L/5 is satisfied in the case of 20 mm≤Da-b, the relation of I≥(-Da+b+65 mm)L/75 is satisfied in the case of 5 mm≤Da-b<20 mm, and the relation of I≥4L/5 is satisfied in the case of Da-b<5 mm. COPYRIGHT: (C)2007,JPO&INPIT</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ALLOYS BLASTING CHEMISTRY ENGINEERING ELEMENTS AND UNITS FERROUS OR NON-FERROUS ALLOYS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING METALLURGY THERMAL INSULATION IN GENERAL TREATMENT OF ALLOYS OR NON-FERROUS METALS WEAPONS |
| title | PINION SHAFT AND PLANETARY GEAR DEVICE |
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