EXTERNAL SPUR GEAR DAT外圆柱齿轮参数）manufacturing data （制造参数）part number （零件号）tooth form （齿面）gear type （齿轮类型）number of teeth （齿数）normal module （法向模数）normal pressure angle （at ref circle）法向压力角（在分度圆上）helix angle （at ref circle）螺旋角（在分度圆上）helical lead （螺旋导程）hand of helix （旋向）reference face width （参考齿宽）outside diameter （齿顶圆直径）chamfer diameter （倒圆直径）reference（pitch）circle diameter （分度圆直径）或节圆start of active profile diameter 有效渐开线起始圆直径form diameter 展成直径root diameter 齿根圆直径base circle diameter 基圆直径whole depth 全齿高normal circular tooth thickness （at reference circle）法向弧齿厚（在分度圆上）root type 齿根形式root fillet radius 齿根圆角半径lead crown 齿向鼓形HOB DATA滚刀参数pressure angle 压力角tooth thickness at reference line 分圆齿厚protuberance 凸角tip radius 齿顶圆半径reference part number 零件号INSPECTION DAT检验数据profile tolerance and modifications 齿形公差和修形profile hollow 齿形中凹refernce pitch circle runout 节圆跳动pitch variation 齿距偏差lead variation 齿向偏差lead hollow 齿向中凹profile surface finish 渐开线齿面精加工ball diameter 量球直径dimension over two balls in same plane 跨棒距REFERENCE DATA-MATING GEAR齿齿的参考参数normal center distance 中心距mating gear part number 对齿齿轮零件号mumber of teeth on mating gear 对齿轮齿数backlash （nominal CD ,ROOM TEMP侧隙（法线方向，室温）general notes（通用技术要求）1. DO not scale drawing（不要在图上量取尺寸）2. all surfaces corners and edges must be free from burrsand sharp edges-break 0.075 MM MAX（所有面,角和边不能有毛刺,锐边倒钝不超过0.075mm）3. unless otherwise stated（除非特别注明,否则）A. all dimensions and tolerance are in millimeters perChi nese sta ndard（所有以毫米为单位的尺寸和公差均按中国标准）B. all surface finishes to be 3.2 micrometer or better（所有表面粗糙度不应低于3.2）C. all dimension are finished dimensions;no allowance has beenmade for any change in maximum or least material conditiondue to heat treatment（所有尺寸均为最终尺寸; 热处理导致的最大或最小实体条件的变化不应超出允差）D linear dimensions to be +/- 0.25 MM（线性尺寸偏差为+/- 0.25 MM）E angular dimensions to be +/- 0.5 o（角度尺寸偏差为+/- 0.5o）4. mark part number as shown（如图作零件号）5. mark serial number as shown（如图作系列号）6. heat treatment to be applied to all surfaces（整体热处理）gear notes（齿轮技术要求）1. do not grind roots and fillets after heat treatment（热处理后不得磨及齿根和圆角）2. no steps or grooves permissible in root and fillet region afterhoning or grinding（珩磨后,齿根和圆角区域不允许有台阶或凹痕）3. profile tolerance based upon floating band fit（齿形误差应以公差带为计）4. gear must be free from grind burns and tempering（齿面不得烧伤）5. pitch line runout and other tooth tolerances are with respect todatum A（节圆跳动和其它齿轮公差均以基准A为测量基准）6. profile tolerance to be measured between form and chamfer（齿形误差应由渐开线起始（或终止）圆测量至齿顶倒角）7. min hardness must be achieved in tooth root and fillet region（齿根和圆角处的硬度不得低于硬度下差）8. root radius tangent to profile not to extend above form diameter（齿根圆角要与齿面相切,而且不能超过渐开线起始（或终止）圆直径。

9. do not thru harden tooth tips（齿尖不得淬透）齿轮基本术语齿轮副Gear pair齿轮Toothed gear；Gear 右侧齿面Right flank齿面Tooth flank 短幅内摆线Curtate hypocycloid长幅内摆线Prolate hypocycloid 平行轴齿轮副Gear pair with parallel axes左侧齿面Left flank 从动齿轮Driven gear渐开线Involute ；Involute to a circle 上齿面Addendum flank相交轴齿轮副Gear pair with intersecting axes 圆环面的中性圈Middle circle of the toroid 同侧齿面Corresponding flank 行星齿轮Planet gear延伸渐开线Prolate involute 下齿面Dedendum flank齿轮系Train of gears 圆环面的中间平面Middle-plane of the toroid异侧齿面Opposite flank 行星架Planet carrier缩短渐开线Curtate involute 齿根过渡曲面Fillet行星齿轮系Planetary gear train 圆环面的内圈Inner circle of the toroid 工作齿面Working flank 太阳轮Sun gear球面渐开线Spherical involute 齿顶Crest；Top land齿轮传动Gear drive；Gear transmission 啮合干涉Meshing interference非工作齿面Non-working flank 内齿圈Ring gear；Annulus gear渐开螺旋面Involute helicoid 槽底Bottom land配对齿轮Mating gears切齿干涉Cutter interference相啮齿面Mating flank 外齿轮External gear阿基米德螺旋面Screw helicoid 齿廓Tooth profile小齿轮Pinion 齿廓修型Profile modification ；共轭齿面Conjugate flankProfile correction球面渐开螺旋面Spherical involute helicoid 内齿轮Internal gear大齿轮Wheel ；Gear 端面齿廓Transverse profile可用齿面Usable flank 修缘Tip relief圆环面Toroid 中心距Centre distance主动齿轮Driving gear 法向齿廓Normal profile有效齿面Active flank 修根Root relief圆环面的母圈Generant of the toroit 轴交角Shaft angle轴向齿廓Axial profile齿向修形Axial modification ；Longitudinal correction 连心线Line of centres 背锥齿廓Back cone tooth profile 齿端修薄End relief 减速齿轮副Speed reducing gear pair 齿线Tooth trace鼓形修整Crowning 增速齿轮副Speed increasing gear pair齿棱Tip；Tooth tip鼓形齿Crowned teeth 齿数比Gear ratio 模数Module 挖根Undercut 传动比Transmission ratio 端面模数Transverse module 瞬时轴Instantaneous axis 轴平面Axial plane 法向模数Normal module 瞬时接触点Point of contact 基准平面Datum plane 轴向模数Axial module瞬时接触线Line of contact 节平面Pitchplane 径节Diametral pitch端面啮合线Transverse path of contact 端平面Transverse plane齿数Number of teeth啮合曲面Surface of action法平面Normal planeVirtual number of teeth当量齿数啮合平面Plane of action分度曲面Reference surface头数Number of starts ；Number of threads啮合区域Zone of action节曲面Pitch surface螺旋线Helix ；Circular helix总作用弧Total arc of transmission齿顶曲面Tip surface圆锥螺旋线Conical spiral端面作用弧Transverse arc of transmission齿根曲面Root surface螺旋角Helix angle ；Spiral angle纵向作用弧Overlap arc基本齿廓Basic tooth profile导程Lead总作用角Total angle of transmission基本齿条Basic rack导程角Lead angle端面作用角Transverse angle of transmission高度变位圆柱齿轮副 X-gear pair with reference centre distance斜齿轮 Helical gear ；Single-helical gear 节圆柱面 Pitch cylinder角度变位圆柱齿轮副 X-gear pair with modified centre distance直齿条 Spur rack 基圆柱面 Basic cylinder高度变位锥齿轮副 X-gear pair without shaft anglemodification 斜齿条 Helical rack 齿顶圆柱面 Tip cylinder角度变位圆柱齿轮副 X-gear pair with shaft angle modification人字齿轮 Double-helical gear齿根圆柱面 Root cylinder变位系数 Modification coefficient渐开线齿轮 Involute cylindrical gear节点 Pitch point变位量 Addendum modification摆线齿轮 Cycloidal gear 节线 Pitch line径向变位系数 Addendum modification coefficient 圆弧齿轮 Circular-arc gear ； W-N gear 分度圆 Reference circle中 心 距 变 位 系 数 Centre distance modification coefficient分度圆柱面 Reference cylinder阿基米德螺旋线 Archimedes spiral 纵向作用角 Overlap angle产形齿轮 Generating gear of a gear 外摆线 Epicycloid总重合度 Total contact ratio 产形齿面 Generating flank 长幅外摆线 Prolate epoicycloid端面重合度 Transverse ratio 基准线 Datum line短幅外摆线 Curtate epoicycloid 纵向重合度 Overlap ratio轮齿Gear teeth ； Tooth摆线 Cycloid标准齿轮 Standard gears齿槽Tooth space长幅摆线 Prolate cycloid非变位齿轮 X-gero gear右旋齿 Right-hand teeth 短幅摆线 Curtate cycloid标准中心距 Referencr centre distance 左旋齿 Left-hand teeth 内摆线 Hypocycloid名义中心距 Nominal centre distance 变位齿轮 Gears with addendum modification产形齿条Counterpart rackX-gears 直齿轮Spur gearpoint齿根圆角半径Fillet radius节圆 Pitch circle基圆直径 Base diameter 圆柱齿轮 Cylindrical gear 锥齿轮 Bevel gear 假想曲面 Imaginary surfance 冠顶距 Apex to crown 基圆 Basic circle 顶圆直径 Tip diameter 顶圆Tip circle锥齿轮副 Bevel gear pair 任意点法向压力角 Normal pressure angle at a point 偏置距 Offset定位面 Locating face 根圆直径Root diameter根圆Root circle准双曲面齿轮副 Hypoid gear pair 任意点端面压力角 Transverse pressure angle at a齿线偏移量Offset of tooth trace双圆弧齿轮 Double-circular-arc gear 轮冠距 Tip distance ； crown to back外锥距Outer cone distance准双曲面齿轮Hypoid gear齿距Pitch分锥角Reference cone angle啮合角Working pressure angle齿高Tooth depth内锥距Inner cone distance冠轮Crown gear齿距角Angular pitch节锥角Pitch cone angle顶隙Bottom clearance工作高度Working depth中点锥距Mean cone distance端面齿轮Contrate gear公法线长度Base tangent length顶锥角Tip angle圆周侧隙Circumferential blacklash齿顶高Addendum背锥距Back cone distance直齿锥齿轮Straight bevel gear分度圆直径Reference diameter根锥角Root angle法向侧隙Normal blacklash齿根高Dedendum安装距Locating distance斜齿锥齿轮Skew bevel gear；节圆直径Pitch diameterHelical bevel gear径向侧隙Radial blacklash背锥角Back cone angle齿顶角 Addendum angel 固定弦齿高Constant chord height弧齿锥齿轮 Spiral bevel gear 齿根角 Dedendum angle 齿宽 Facewidth摆线齿锥齿轮 Enicycloid bevel gear 任意点压力角 Pressure angle at a point有效齿宽 Effective facewidth 零度齿锥齿轮 Zero T bevel gear 任意点螺旋角 Spiral angle at a point 端面齿厚 Transverse tooth thickness 圆柱齿轮端面齿轮副 Contrate gear pair 中点螺旋角 Mean spiral angle 法向齿厚 Normal tooth thickness锥齿轮的当量圆柱齿轮 Virtual cylindrical gear of bevel gear 大端螺旋角 Outer spiral angle端面基圆齿厚 Transverse base thickness8 字啮合锥齿轮 Octoid gear 小端螺旋角 Inner spiral angle 法向基圆齿厚 Normal base thickness圆柱齿弧锥齿轮 tooth profile蜗杆 Worm蜗轮 Worm wheel 固定弦齿厚 Constant chord节圆锥面 Pitch cone蜗杆副 Worm gear pair端面齿顶厚 Crest width齿顶圆锥面 Face cone ； tip cone 圆柱蜗杆 Cylindrical worm 法向齿顶厚 Normal crest width 齿根圆锥面 Root cone圆柱蜗杆副 Cylindrical worm pair 端面齿槽宽Transverse spacewidth 背锥面 Back cone环面蜗杆 Enveloping worm 法向齿槽宽、＞ .厶/、.—f ~"•Normal spacewidth前锥面Front cone 环面蜗杆副 Enveloping worm pair 齿厚半角 Tooth thickness half angle 中锥面 Middle cone阿基米德蜗杆 Straight sided axial worm ； ZA-worm 槽宽半角 Spacewidth half angle 分锥顶点Reference cone apex渐开线蜗杆 Involute helicoid worm ； 压力角 Pressure angle 轴线交点Crossing point of axesTransverse chordal tooth thicknessStraight sided normal worm ；弦齿高 Chordal height 分度圆锥面 Reference cone 曲面齿锥齿轮 Curved tooth bevel gearSpiral bevel gear with circle arc端面弦齿厚法向直廓蜗杆11 /9齿形角 Nominal pressure angle非圆齿轮 Non-circular gear 齿根圆环面 Root tosoid 锥蜗杆副 Spiroid gear pair 椭圆齿轮 Elliptical gear 咽喉半径 Gorge radius 咽喉面 Gorge分度圆环面 Reference tosoid 非圆齿轮副 Non-circular gear pair中平面 Mid-plane 平面蜗杆 Planar worm wheel ； P-worm wheel齿宽角Width angle喉平面 Gorge plane圆柱针轮副 Cylindsical lantern pinion and wheel 平面包络环面蜗杆 Planar double enveloping worm ； TP-worm 喉圆 Gorge circle针轮Cylindsical tan tein gear ； pin-wheel平面二次包络蜗杆 Planar double-enveloping worm wheel ； TP-worm wheel 分度圆蜗旋线 Reference helix 谐波齿轮副 Harmoric gear drive锥面包络环面蜗杆 Toroid enveloping worm wheel ； TK-worm wheel 螺纹 Thread 波发生器 Wave generator 蜗杆齿宽Worm facewidth柔性齿轮 Flexspine 锥蜗杆 Spiroid 蜗轮齿宽 Worm wheel facewidth 刚性齿轮Circular spline锥蜗轮 Spiroid gear 直径系数 Diametral quotient。