ICS 21. 100. 20
J 11
JB/T 7919.3-1999
neq ISO 2982–2∶1995
滚 动 轴 承
附件 锁紧螺母和锁紧装置
Rolling bearings–Accessories—Locknuts and locking devices
1999-06-28 发布 2000-01-01 实施
国 家 机 械 工 业 局 发 布
I
前言
1 范围····················································································································································································································1
2 引用
标准
excel标准偏差excel标准偏差函数exl标准差函数国标检验抽样标准表免费下载红头文件格式标准下载
·········································································································································································································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
对教师党员的评价套管和固井爆破片与爆破装置仓库管理基本要求三甲医院都需要复审吗
·······································································································································································································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
JB/T 7919.3-1999
目 次
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II
前 言
本标准非等效采用 ISO 2982–2∶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/T 7919.4—95《滚动轴承 附件 锁紧螺母基本尺寸》、JB/T 7919.5—95《滚动轴
承 附件 锁紧垫圈基本尺寸》、JB/T 7919.6—95《滚动轴承 附件 锁紧卡基本尺寸》、JB/T 7919.7
—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/T 7916—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 500~1060 mm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/T 7919.4~7919.6—95、JB/T 7919.7—95(部分)、JB/T 7916—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。
JB/T 7919.3-1999
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1
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/T 192—1981 普通螺纹 基本牙型
GB/T 196—1981 普通螺纹 基本尺寸(直径 1~600 mm)
GB/T 272—1993 滚动轴承 代号方法
GB/T 699—1988 优质碳素结构钢 技术条件
GB/T 1804—1992 一般公差 线性尺寸的未注公差
GB/T 2516—1981 普通螺纹偏差表(直径 1~355 mm)
GB/T 5796.1—1986 梯形螺纹 牙型
GB/T 5796.3—1986 梯形螺纹 基本尺寸
GB/T 5796.4—1986 梯形螺纹 公差
GB/T 6930—1986 滚动轴承 词汇
GB/T 8597—1988 滚动轴承 包装
JB/T 3574—1997 滚动轴承 产品标志
JB/T 8921—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/T 6930 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
中 华 人 民 共 和 国 机 械 行 业 标 准
滚 动 轴 承
附件 锁紧螺母和锁紧装置
Rolling bearings–Accessories—Locknuts and locking devices
JB/T 7919.3-1999
neq ISO 2982–2∶1995
代替 JB/T 7919.4~7919.6— 95
JB/T 7916—95
部分代替 JB/T 7919.7—95
2000-01-01 实施
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JB/T 7919.3- 1999
2
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
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JB/T 7919.3- 1999
3
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)
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JB/T 7919.3- 1999
4
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/T 272 中轴承内径的规定。
5. 4 代号示例
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KM L 08
MBA L 08
MS L 48
6 标记
标记示例:
公称直径为 40 mm的螺母,标记为:
KM 08 JB/T 7919.3—1999
对应的螺母公称直径为 40 mm 的直内爪锁紧垫圈,标记为:
MB 08 JB/T 7919.3—1999
对应的螺母公称直径为 240 mm、30系列的锁紧卡,标记为:
MSL 48 JB/T 7919.3—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 1 KM、HM 型锁紧螺母 mm
尺 寸 参 考 尺 寸 锁紧螺母
型 号
螺 纹
d d1 d2 B b h d6 g r1max l s dp
适用的锁紧
垫圈型号
适用的锁
紧卡型号
KM 00
KM 01
KM 02
M10×0.75
M12×1
M15×1
10
12
15
13.5
17
21
18
22
25
4
4
5
3
3
4
2
2
2
10.5
12.5
15.5
14
18
21
0.4
0.4
0.4
—
—
—
—
—
—
—
—
—
MB 00
MB 01
MB 02
—
—
—
KM 03
KM 04
KM/22
M17×1
M20×1
M22×1
17
20
22
24
26
28
28
32
34
5
6
6
4
4
4
2
2
2
17.5
20.5
22.5
24
28
30
0.4
0.4
0.4
—
—
—
—
—
—
—
—
—
MB 03
MB 04
MB/22
—
—
—
螺母公称直径代号
尺寸系列代号
螺母类型代号
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
对应的螺母公称直径代号
尺寸系列代号
锁紧卡类型代号
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JB/T 7919.3- 1999
6
表 1(续) mm
尺 寸 参 考 尺 寸 锁紧螺母
型 号
螺 纹
d d1 d2 B b h d6 g r1max l s dp
适用的锁紧
垫圈型号
适用的锁
紧卡型号
KM 05
KM/28
KM 06
M 25×1.5
M 28×1.5
M 30×1.5
25
28
30
32
36
38
38
42
45
7
7
7
5
5
5
2
2
2
25.8
28.8
30.8
34
38
41
0.4
0.4
0.4
—
—
—
—
—
—
—
—
—
MB 05
MB/28
MB 06
—
—
—
KM/32
KM 07
KM 08
M 32×1.5
M 35×1.5
M 40×1.5
32
35
40
40
44
50
48
52
58
8
8
9
5
5
6
2
2
2.5
32.8
35.8
40.8
44
48
53
0.4
0.4
0.5
—
—
—
—
—
—
—
—
—
MB/32
MB 07
MB 08
—
—
—
KM 09
KM 10
KM 11
M 45×1.5
M 50×1.5
M 55×2
45
50
55
56
61
67
65
70
75
10
11
11
6
6
7
2.5
2.5
3
45.8
50.8
56
60
65
69
0.5
0.5
0.5
—
—
—
—
—
—
—
—
—
MB 09
MB 10
MB 11
—
—
—
KM 12
KM 13
KM 14
M 60×2
M 65×2
M 70×2
60
65
70
73
79
85
80
85
92
11
12
12
7
7
8
3
3
3.5
61
66
71
74
79
85
0.5
0.5
0.5
—
—
—
—
—
—
—
—
—
MB 12
MB 13
MB 14
—
—
—
KM 15
KM 16
KM 17
M 75×2
M 80×2
M 85×2
75
80
85
90
95
102
98
105
110
13
15
16
8
8
8
3.5
3.5
3.5
76
81
86
91
98
103
0.5
0.6
0.6
—
—
—
—
—
—
—
—
—
MB 15
MB 16
MB 17
—
—
—
KM 18
KM 19
KM 20
M 90×2
M 95×2
M 100×2
90
95
100
108
113
120
120
125
130
16
17
18
10
10
10
4
4
4
91
96
101
112
117
122
0.6
0.6
0.6
—
—
—
—
—
—
—
—
—
MB 18
MB 19
MB 20
—
—
—
KM 21
KM 22
KM 23
M 105×2
M 110×2
M 115×2
105
110
115
126
133
137
140
145
150
18
19
19
12
12
12
5
5
5
106
111
116
130
135
140
0.7
0.7
0.7
—
—
—
—
—
—
—
—
—
MB 21
MB 22
MB 23
—
—
—
KM 24
KM 25
KM 26
M 120×2
M 125×2
M 130×2
120
125
130
138
148
149
155
160
165
20
21
21
12
12
12
5
5
5
121
126
131
145
150
155
0.7
0.7
0.7
—
—
—
—
—
—
—
—
—
MB 24
MB 25
MB 26
—
—
—
KM 27
KM 28
KM 29
M 135×2
M 140×2
M 145×2
135
140
145
160
160
171
175
180
190
22
22
24
14
14
14
6
6
6
136
141
146
163
168
178
0.7
0.7
0.7
—
—
—
—
—
—
—
—
—
MB 27
MB 28
MB 29
—
—
—
KM 30
KM 31
KM 32
M 150×2
M 155×3
M 160×3
150
155
160
171
182
182
195
200
210
24
25
25
14
16
16
6
7
7
151
156.5
161.5
183
186
196
0.7
0.7
0.7
—
—
—
—
—
—
—
—
—
MB 30
MB 31
MB 32
—
—
—
KM 33
KM 34
KM 36
KM 38
KM 40
M 165×3
M 170×3
M 180×3
M 190×3
M 200×3
165
170
180
190
200
193
193
203
214
226
210
220
230
240
250
26
26
27
28
29
16
16
18
18
18
7
7
8
8
8
166.5
171.5
181.5
191.5
201.5
196
206
214
224
234
0.7
0.7
0.7
0.7
0.7
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
MB 33
MB 34
MB 36
MB 38
MB 40
—
—
—
—
—
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JB/T 7919.3- 1999
7
表 1(完) mm
尺 寸 参 考 尺 寸 锁紧螺母
型 号
螺 纹
d d1 d2 B b h d6 g r1max l s dp
适用的锁紧
垫圈型号
适用的锁
紧卡型号
HM 42
HM 44
HM 46
HM 48
Tr 210×4
Tr 220×4
Tr 230×4
Tr 240×4
210
220
230
240
238
250
260
270
270
280
290
300
30
32
34
34
20
20
20
20
10
10
10
10
212
222
—
242
250
260
—
280
0.8
0.8
—
0.8
—
15
—
15
—
M 8
—
M 8
—
238
—
258
MB 42
MB 44
—
MB 48
—
MS 44
—
MS 44
HM 50
HM 52
HM 56
Tr 250×4
Tr 260×4
Tr 280×4
250
260
280
290
300
320
320
330
350
36
36
36
20
24
24
10
12
12
—
262
282
—
306
326
—
0.8
0.8
—
18
18
—
M 10
M 10
—
281
301
—
MB 52
MB 56
—
MS 52
MS 52
HM 58
HM 60
HM 62
Tr 290×4
Tr 300×4
Tr 310×5
290
300
310
330
340
350
370
380
390
40
40
42
24
24
24
12
12
12
292
302
312.5
346
356
366
0.8
0.8
0.8
—
18
—
—
M 10
—
—
326
—
—
—
—
—
MS 60
—
HM 64
HM 66
HM 68
Tr 320×5
Tr 330×5
Tr 340×5
320
330
340
360
380
400
400
420
440
42
52
55
24
28
28
12
15
15
322.5
332.5
342.5
376
390
410
0.8
1
1
18
—
21
M 10
—
M 12
345
—
372
—
—
—
MS 64
—
MS 68
HM 70
HM 72
HM 74
Tr 350×5
Tr 360×5
Tr 370×5
350
360
370
410
420
430
450
460
470
55
58
58
28
28
28
15
15
15
352.5
362.5
372.5
420
430
440
1
1
1
—
21
—
—
M 12
—
—
392
—
—
—
—
—
MS 68
—
HM 76
HM 80
Tr 380×5
Tr 400×5
380
400
440
460
490
520
60
62
32
32
18
18
382.5
402.5
454
484
1
1
21
27
M 12
M 16
414
439
—
—
MS 76
MS 80
HM 84
HM 88
HM 92
Tr 420×5
Tr 440×5
Tr 460×5
420
440
460
490
510
540
540
560
580
70
70
75
32
36
36
18
20
20
422.5
442.5
462.5
504
520
540
1
1
1
27
27
27
M 16
M 16
M 16
459
477
497
—
—
—
MS 80
MS 88
MS 88
HM 96
HM/500
Tr 480×5
Tr 500×5
480
500
560
580
620
630
75
80
36
40
20
23
482.5
502.5
580
584
1
1
27
27
M 16
M 16
527
539
—
—
MS 96
MS/500
HM/510
HM/530
HM/550
Tr 510×6
Tr 530×6
Tr 550×6
510
530
550
590
610
640
650
670
700
80
80
80
40
40
40
23
23
23
513
533
553
604
624
654
1
1
1
—
—
—
—
—
—
—
—
—
—
—
—
—
MS/530
—
HM/560
HM/600
HM/630
Tr 560×6
Tr 600×6
Tr 630×6
560
600
630
650
690
730
710
750
800
85
85
95
45
45
50
25
25
28
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
MS/560
MS/560
MS/630
HM/670
HM/710
HM/750
Tr 670×6
Tr 710×7
Tr 750×7
670
710
750
775
825
875
850
900
950
106
106
112
50
55
60
28
30
34
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
MS/670
MS/710
MS/750
HM/800
HM/850
HM/900
Tr 800×7
Tr 850×7
Tr 900×7
800
850
900
925
975
1030
1000
1060
1120
112
118
125
60
70
70
34
38
38
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
MS/750
MS/850
MS/900
HM/950
HM/1000
HM/1060
Tr 950×8
Tr 1000× 8
Tr 1060× 8
950
1000
1060
1080
1140
1210
1170
1240
1300
125
125
125
70
70
70
38
38
38
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
MS/950
MS/1000
MS/1000
????? www.bzfxw.com ????
JB/T 7919.3- 1999
8
表 2 KML、HML 型锁紧螺母 mm
尺 寸 参 考 尺 寸 锁紧螺母
型 号
螺 纹
d d1 d2 B b h d6 g r1max l s dp
适用的锁紧
垫圈型号
适用的锁
紧卡型号
KML 24
KML 26
KML 28
KML 30
KML 32
KML 34
KML 36
KML 38
KML 40
HML 41
HML 43
HML 44
HML 47
HML 48
HML 52
HML 56
HML 60
HML 64
HML 68
HML 69
HML 72
HML 73
HML 76
HML 77
HML 80
HML 82
HML 84
HML 86
HML 88
HML 90
HML 92
HML 94
HML 96
HML 98
M 120×2
M 130×2
M 140×2
M 150×2
M 160×3
M 170×3
M 180×3
M190×3
M200×3
Tr205×4
Tr215×4
Tr220×4
Tr235×4
Tr240×4
Tr260×4
Tr280×4
Tr300×4
Tr320×5
Tr340×5
Tr345×5
Tr360×5
Tr365×5
Tr380×5
Tr385×5
Tr400×5
Tr410×5
Tr420×5
Tr430×5
Tr440×5
Tr450×5
Tr460×5
Tr470×5
Tr480×5
Tr490×5
120
130
140
150
160
170
180
190
200
205
215
220
235
240
260
280
300
320
340
345
360
365
380
385
400
410
420
430
440
450
460
470
480
490
135
145
155
170
180
190
200
210
222
232
242
242
262
270
290
310
336
356
376
384
394
404
422
422
442
452
462
472
490
490
510
510
530
550
145
155
165
180
190
200
210
220
240
250
260
260
280
290
310
330
360
380
400
410
420
430
450
450
470
480
490
500
520
520
540
540
560
580
20
21
22
24
25
26
27
28
29
30
30
30
34
34
34
38
42
42
45
45
45
48
48
48
52
52
52
52
60
60
60
60
60
60
12
12
14
14
16
16
18
18
18
18
20
20
20
20
20
24
24
24
24
28
28
28
28
28
28
32
32
32
32
32
32
32
36
36
5
5
6
6
7
7
8
8
8
8
9
9
9
9
10
10
12
12
12
13
13
13
14
14
14
14
14
14
15
15
15
15
15
15
121
131
141
151
161.5
171.5
181.5
191.5
201.5
207
217
222
237
242
262
282
302
322.5
342.5
347.5
362.5
367.5
382.5
387.5
402.5
412.5
422.5
432.5
442.5
452.5
462.5
472.5
482.5
492.5
135
145
153
168
176
186
194
204
224
234
242
242
262
270
290
310
336
356
376
384
394
404
422
422
442
452
462
472
490
490
510
510
530
550
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
—
—
—
—
—
—
—
—
—
—
—
12
—
15
15
15
15
15
15
—
15
—
18
—
18
—
18
—
21
—
21
—
21
—
—
—
—
—
—
—
—
—
—
—
—
M 6
—
M 8
M 8
M 8
M 8
M 8
M 8
—
M 8
—
M 10
—
M 10
—
M 10
—
M 12
—
M 12
—
M 12
—
—
—
—
—
—
—
—
—
—
—
—
229
—
253
273
293
316
335
355
—
374
—
398
—
418
—
438
—
462
—
482
—
502
—
MBL 24
MBL 26
MBL 28
MBL 30
MBL 32
MBL 34
MBL 36
MBL 38
MBL 40
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
MSL 44
—
MSL 48
MSL 48
MSL 56
MSL 60
MSL 64
MSL 64
—
MSL 72
—
MSL 76
—
MSL 76
—
MSL 84
—
MSL 88
—
MSL 88
—
MSL 96
—
JB/T 7919.3- 1999
9
表 2(完) mm
尺 寸 参 考 尺 寸 锁紧螺母
型 号
螺 纹
d d1 d2 B b h d6 g r1max l s dp
适用的锁紧
垫圈型号
适用的锁
紧卡型号
HML/500
HML/520
HML/530
HML/540
HML/560
HML/600
HM/630
HM/670
HML/710
HML/750
HML/800
HML/850
HML/900
HML/950
HML/1000
HML/1060
HML/1120
Tr500×5
Tr520×5
Tr530×6
Tr540×6
Tr560×6
Tr600×6
Tr630×6
Tr670×6
Tr710×7
Tr750×7
Tr800×7
Tr850×7
Tr900×7
Tr950×8
Tr1000× 8
Tr1060× 8
Tr1120× 8
500
520
530
540
560
600
630
670
710
750
800
850
900
950
1000
1060
1120
550
570
590
590
610
660
690
740
780
820
870
925
975
1025
1085
1145
1205
580
600
630
630
650
700
730
780
830
870
920
980
1030
1080
1140
1200
1260
68
68
68
68
75
75
75
80
90
90
90
90
100
100
100
100
100
36
36
40
40
40
40
45
45
50
55
55
60
60
60
60
60
60
15
15
20
20
20
20
20
20
25
25
25
25
25
25
25
25
25
502.5
523
—
543
—
—
—
—
—
—
—
—
—
—
—
—
—
550
570
—
590
—
—
—
—
—
—
—
—
—
—
—
—
—
1
1
—
1
—
—
—
—
—
—
—
—
—
—
—
—
—
21
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
M12
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
522
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
MSL96
—
MSL/530
—
MSL/560
MSL/560
MSL/630
MSL/670
MSL/710
MSL/750
MSL/750
MSL/850
MSL/850
MSL/950
MSL/1000
MSL/1000
MSL/1000
7. 2 锁紧垫圈尺寸见表 3、表 4。
表 3 MB、MBA型锁紧垫圈 mm
锁紧垫圈型号 尺 寸 参考尺寸
MB型 MBA型 d3 d4 d5 f1 M f B1 B2
Nmin
r2
MB 00
MB 01
MB 02
MBA 00
MBA 01
MBA 02
10
12
15
13.5
17
21
21
25
28
3
3
4
8.5
10.5
13.5
3
3
4
1
1
1
—
—
2.5
9
11
11
—
—
1
MB 03
MB 04
MB 05
MB 06
MB 07
MBA 03
MBA 04
MBA 05
MBA 06
MBA 07
17
20
25
30
35
24
26
32
38
44
32
36
42
49
57
4
4
5
5
6
15.5
18.5
23.0
27.5
32.5
4
4
5
5
5
1
1
1.25
1.25
1.25
4
4
4
4
4
11
11
13
13
13
—
—
—
—
—
MB 08
MB 09
MB 10
MB 11
MB 12
MBA 08
MBA 09
MBA 10
MBA 11
MBA 12
40
45
50
55
60
50
56
61
67
73
62
69
74
81
86
6
6
6
8
8
37.5
42.5
47.5
52.5
57.5
6
6
6
7
7
1.25
1.25
1.25
1.5
1.5
5
5
5
5
6
13
13
13
17
17
—
—
—
—
1.2
????? www.bzfxw.com ????
JB/T 7919.3- 1999
10
表 3(完) mm
锁紧垫圈型号 尺 寸 参考尺寸
MB型 MBA型 d3 d4 d5 f1 M f B1 B2
Nmin