JB/T 7919.3-1999 滚动轴承 附件 锁紧螺母和锁紧装置

ICS21.100.20

J11

JB/T7919.3999－－－1

neqISO2982–2995∶∶∶1

滚动轴承

附件锁紧螺母和锁紧装置

Rollingbearings–Accessories———Locknutsandlockingdevices

1999-06-28发布2000-01-01实施

国家机械工业局发布

JB/T7919.3－－－－1999

目次

前言

1范围··························································································································································1

2引用标准··················································································································································1

3术语··························································································································································1

4符号··························································································································································1

5代号方法··················································································································································4

6标记··························································································································································5

7尺寸························································································································································5

8技术要求················································································································································12

9测量方法················································································································································14

10标志······················································································································································15

11检验规则··············································································································································15

12包装······················································································································································15

附录A（标准的附录）宽系列锁紧螺母及带弯内爪的锁紧垫圈尺寸和公差·······································16

I

JB/T7919.3－－－－1999

前言

本标准非等效采用ISO2982–2∶1995《滚动轴承附件锁紧螺母和锁紧装置》。标准中补充了ISO

标准未规定的技术条件。

本标准是将JB/T7919.4—95《滚动轴承附件锁紧螺母基本尺寸》、JB/T7919.5—95《滚动轴

承附件锁紧垫圈基本尺寸》、JB/T7919.6—95《滚动轴承附件锁紧卡基本尺寸》、JB/T7919.7

—95《滚动轴承附件锥形衬套、锁紧螺母和锁紧垫圈技术条件》（部分）、JB/T7916—95《滚动轴

承用锁紧螺母（宽系列）及带弯内爪的锁紧垫圈》五个标准合并，并作了修改，修改的主要内容为：

——增加了大于500~1060mm的尺寸段；

——在锁紧螺母中增加了适用的锁紧垫圈和锁紧卡型号；

——修改了部分尺寸的公差值。

本标准自实施之日起代替JB/T7919.4~7919.6—95、JB/T7919.7—95（部分）、JB/T7916—95。

本标准的附录A是标准的附录。

本标准由全国滚动轴承标准化技术委员会提出并归口。

本标准起草单位：洛阳轴承研究所。

本标准主要起草人：郭宝霞、李飞雪、陈原。

II

中华人民共和国机械行业标准

JB/T7919.3－－－－1999

neqISO2982–2∶∶∶∶1995

滚动轴承

代替JB/T7919.4~7919.6—95

附件锁紧螺母和锁紧装置JB/T7916—95

部分代替JB/T7919.7—95

Rollingbearings–Accessories————Locknutsandlockingdevices

1范围

本标准规定了锁紧螺母（简称螺母）、锁紧装置的尺寸、技术要求、验收规则和测量方法等。

本标准适用于锥形衬套用螺母和锁紧装置的设计、生产、检验和用户验收。

2引用标准

下列标准所包含的条文，通过在本标准中引用而构成为本标准的条文。本标准出版时，所示版本均

为有效。所有标准都会被修订，使用本标准的各方应探讨使用下列标准最新版本的可能性。

GB/T192—1981普通螺纹基本牙型

GB/T196—1981普通螺纹基本尺寸（直径1~600mm）

GB/T272—1993滚动轴承代号方法

GB/T699—1988优质碳素结构钢技术条件

GB/T1804—1992一般公差线性尺寸的未注公差

GB/T2516—1981普通螺纹偏差表（直径1~355mm）

GB/T5796.1—1986梯形螺纹牙型

GB/T5796.3—1986梯形螺纹基本尺寸

GB/T5796.4—1986梯形螺纹公差

GB/T6930—1986滚动轴承词汇

GB/T8597—1988滚动轴承包装

JB/T3574—1997滚动轴承产品标志

JB/T8921—1999滚动轴承及其商品零件检验规则

3术语

本标准采用的术语符合GB/T6930的规定。

4符号

4.1锁紧螺母（见图1）

国家机械工业局1999-06-28批准2000-01-01实施

1

JB/T7919.3－－－－1999

图1锁紧螺母

d：螺母螺纹公称直径

d1：螺母端面30°倒角直径

d2：螺母公称外径

B：螺母宽度

b：螺母锁紧槽宽度

h：螺母锁紧槽深度

d6：螺母端面内倒角直径

g：螺母锁紧槽根部直径

r1max：螺母锁紧槽根部倒角尺寸的最大值

l：螺母端面螺孔深度

s：螺母端面螺孔基本直径

dp：螺母端面螺孔中心圆直径

Δd1s：螺母d1的单一直径偏差

Δd2s：螺母外径偏差

2

JB/T7919.3－－－－1999

ΔBs：螺母宽度偏差

Δbs：螺母锁紧槽宽度偏差

Δhs：螺母锁紧槽深度偏差

Sd：螺母基准端面（30°倒角端面）圆跳动

VBs：螺母宽度变动量

4.2锁紧垫圈（见图2）

直内爪弯内爪

图2锁紧垫圈

d3：锁紧垫圈内径

d4：锁紧垫圈外爪的根部直径

d5：锁紧垫圈外径

B1：锁紧垫圈厚度

B2：弯内爪凸出量

M：直（弯）内爪与垫圈内孔表面间的距离，M=d3–内爪高度

f：锁紧垫圈外爪宽度

f1：锁紧垫圈内爪宽度

N：锁紧垫圈外爪数

r2：锁紧垫圈弯内爪根部的倒角尺寸

Δd3s：锁紧垫圈内径偏差

Δd4s：锁紧垫圈外爪根部直径偏差

ΔB1s：锁紧垫圈厚度偏差

ΔB2s：锁紧垫圈弯内爪凸出量偏差

Δfs：锁紧垫圈外爪宽度偏差

Δf1s：锁紧垫圈内爪宽度偏差

ΔMs：锁紧垫圈M的偏差

VB1s：锁紧垫圈厚度变动量

4.3锁紧卡（见图3）

3

JB/T7919.3－－－－1999

图3锁紧卡

d7：锁紧卡螺钉用孔直径

B3：锁紧卡壁厚

B4：锁紧卡宽度

L1：锁紧卡内壁宽度

L2：锁紧卡高度

L3：锁紧卡长度

L4：螺纹长度

ΔB4s：锁紧卡宽度偏差

ΔL2s：锁紧卡高度偏差

5代号方法

螺母、锁紧垫圈和锁紧卡的代号均由类型代号、尺寸系列代号和表示螺母公称直径的直径代号组成，

并按此顺序排列。

5.1类型代号

类型代号用下列字母表示：

KM—螺母类型代号，表示公制普通螺纹

HM—螺母类型代号，表示公制梯形螺纹

MB—锁紧垫圈类型代号，表示直内爪

MBA—锁紧垫圈类型代号，表示内爪向内弯

MBB—锁紧垫圈类型代号，表示内爪向外弯

MS—锁紧卡类型代号

5.2尺寸系列代号

尺寸系列代号用字母L表示30系列，W表示宽系列，其他系列省略。

5.3直径代号

表示螺母公称直径的直径代号按GB/T272中轴承内径的规定。

5.4代号示例

4

JB/T7919.3－－－－1999

KML08

螺母公称直径代号

尺寸系列代号

螺母类型代号

MBAL08

对应的螺母公称直径代号

尺寸系列代号

锁紧垫圈类型代号

MSL48

对应的螺母公称直径代号

尺寸系列代号

锁紧卡类型代号

6标记

标记示例：

公称直径为40mm的螺母，标记为：

KM08JB/T7919.3—1999

对应的螺母公称直径为40mm的直内爪锁紧垫圈，标记为：

MB08JB/T7919.3—1999

对应的螺母公称直径为240mm、30系列的锁紧卡，标记为：

MSL48JB/T7919.3—1999

7尺寸

7.1螺母的尺寸按表1、表2的规定，宽系列见附录A（标准的附录）。

表1KM、HM型锁紧螺母mm

锁紧螺母尺寸参考尺寸适用的锁紧适用的锁

螺纹

型号dd1d2Bbhd6gr1maxlsdp垫圈型号紧卡型号

KM00M10×0.751013.51843210.5140.4———MB00—

KM01M12×112172243212.5180.4———MB01—

KM02M15×115212554215.5210.4———MB02—

KM03M17×117242854217.5240.4———MB03—

KM04M20×120263264220.5280.4———MB04—

KM/22M22×122283464222.5300.4———MB/22—

5

JB/T7919.3－－－－1999

表1（续）mm

锁紧螺母尺寸参考尺寸适用的锁紧适用的锁

螺纹

型号dd1d2Bbhd6gr1maxlsdp垫圈型号紧卡型号

KM05M25×1.525323875225.8340.4———MB05—

KM/28M28×1.528364275228.8380.4———MB/28—

KM06M30×1.530384575230.8410.4———MB06—

KM/32M32×1.532404885232.8440.4———MB/32—

KM07M35×1.535445285235.8480.4———MB07—

KM08M40×1.5405058962.540.8530.5———MB08—

KM09M45×1.54556651062.545.8600.5———MB09—

KM10M50×1.55061701162.550.8650.5———MB10—

KM11M55×2556775117356690.5———MB11—

KM12M60×2607380117361740.5———MB12—

KM13M65×2657985127366790.5———MB13—

KM14M70×27085921283.571850.5———MB14—

KM15M75×27590981383.576910.5———MB15—

KM16M80×280951051583.581980.6———MB16—

KM17M85×2851021101683.5861030.6———MB17—

KM18M90×29010812016104911120.6———MB18—

KM19M95×29511312517104961170.6———MB19—

KM20M100×2100120130181041011220.6———MB20—

KM21M105×2105126140181251061300.7———MB21—

KM22M110×2110133145191251111350.7———MB22—

KM23M115×2115137150191251161400.7———MB23—

KM24M120×2120138155201251211450.7———MB24—

KM25M125×2125148160211251261500.7———MB25—

KM26M130×2130149165211251311550.7———MB26—

KM27M135×2135160175221461361630.7———MB27—

KM28M140×2140160180221461411680.7———MB28—

KM29M145×2145171190241461461780.7———MB29—

KM30M150×2150171195241461511830.7———MB30—

KM31M155×315518220025167156.51860.7———MB31—

KM32M160×316018221025167161.51960.7———MB32—

KM33M165×316519321026167166.51960.7———MB33—

KM34M170×317019322026167171.52060.7———MB34—

KM36M180×318020323027188181.52140.7———MB36—

KM38M190×319021424028188191.52240.7———MB38—

KM40M200×320022625029188201.52340.7———MB40—

6

JB/T7919.3－－－－1999

表1（完）mm

锁紧螺母尺寸参考尺寸适用的锁紧适用的锁

螺纹

型号dd1d2Bbhd6gr1maxlsdp垫圈型号紧卡型号

HM42Tr210×42102382703020102122500.8———MB42—

HM44Tr220×42202502803220102222600.815M8238MB44MS44

HM46Tr230×4230260290342010————————

HM48Tr240×42402703003420102422800.815M8258MB48MS44

HM50Tr250×4250290320362010————————

HM52Tr260×42603003303624122623060.818M10281MB52MS52

HM56Tr280×42803203503624122823260.818M10301MB56MS52

HM58Tr290×42903303704024122923460.8—————

HM60Tr300×43003403804024123023560.818M10326—MS60

HM62Tr310×5310350390422412312.53660.8—————

HM64Tr320×5320360400422412322.53760.818M10345—MS64

HM66Tr330×5330380420522815332.53901—————

HM68Tr340×5340400440552815342.5410121M12372—MS68

HM70Tr350×5350410450552815352.54201—————

HM72Tr360×5360420460582815362.5430121M12392—MS68

HM74Tr370×5370430470582815372.54401—————

HM76Tr380×5380440490603218382.5454121M12414—MS76

HM80Tr400×5400460520623218402.5484127M16439—MS80

HM84Tr420×5420490540703218422.5504127M16459—MS80

HM88Tr440×5440510560703620442.5520127M16477—MS88

HM92Tr460×5460540580753620462.5540127M16497—MS88

HM96Tr480×5480560620753620482.5580127M16527—MS96

HM/500Tr500×5500580630804023502.5584127M16539—MS/500

HM/510Tr510×65105906508040235136041—————

HM/530Tr530×65306106708040235336241————MS/530

HM/550Tr550×65506407008040235