This standard specifies the basic parameters, types and dimensions, technical requirements, lubrication, test methods and inspection rules of single-stage shaft-mounted arc cylindrical worm reducers. This standard reducer (including three series, SCWU, SCWS, and SCWO) is directly installed on the main shaft of the working machine and is mainly used for reduction transmission of mechanical equipment such as metallurgy, mining, lifting, transportation, chemical industry, and construction. The speed of the worm gear shaft of the reducer does not exceed 1500r/min. The working environment temperature of the reducer is -40~40℃. When the working environment temperature is lower than 0℃. The worm shaft of the reducer can run in both forward and reverse directions. JB/T 6387-1992 Shaft-mounted arc cylindrical worm reducer JB/T6387-1992 Standard download and decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
Shaft-mounted arc cylindrical worm reducer
Theme content and scope of application
JB/T 6387
92
This standard specifies the basic parameters, type and technical requirements, lubrication, test methods and inspection rules of single-stage shaft-mounted arc cylindrical worm reducers (hereinafter referred to as reducers). This standard reducer (including three series, SCWUSCWS and SCWO) is directly installed on the main shaft of the working machine and should be used in the reduction transmission of mechanical equipment such as metallurgy, mining, lifting, transportation, chemical industry, and construction. The speed of the worm shaft of the reducer does not exceed 1500r/min. The operating environment temperature of the reducer is - 40 ~ 40 ℃, and the working environment temperature is lower than 0 (when the lubrication oil must be heated to above) ℃ before starting
Reducer worm The shaft can run in both forward and reverse directions. 2 Reference standards
GB145 center hole
GB191
GB699
GB1095
GB1184
GB1569
GB1801||tt ||(GB9147
GB9439
Packaging, storage and transportation pictorial mark
Technical conditions of high-quality carbon structural steel
Sectional dimensions of flat key and keyway||tt| |Shape and position tolerances without tolerances specified Cylindrical shaft extension
Tolerance and fit size to 500mm hole, shaft tolerance zone and fit arc cylindrical worm reducer
Gray iron parts||tt| |GB 10089
GB 11368
Cylindrical worm and worm gear accuracy
Cleanliness of gear transmission
General technical conditions for mechanical and electrical product packaging
GB/T 13384 :
JB 5558
Worm reducer loading test method
JB/ZQ4288 alloy structural steel
3 models and markings
3.1 reducer model|| tt||SCWU
SCws
SCwO
S
Shaft-mounted arc cylindrical worm reducer with worm below the worm gear; shaft with worm on the side of the worm Mounted arc cylindrical worm reducer; shaft-mounted arc cylindrical worm reducer with the worm on the worm wheel; indicates shaft-mounted type:
C indicates that the worm tooth profile is in the shape of
W. Worm
Ministry of Mechanical and Electronic Industry of the People's Republic of China approved on 1992-07-14 for implementation on 1993-07-07
545
JB/T 6387
J, S, - Indicates that the worm is under the worm wheel and above the side respectively. 3.2 Reducer Marking
3.2.1 Marking Method
SCW
3.2.2 Marking Example
XXX-XX
92
IB/T 6382
Standard number
Assembly type code (see Figure 1 ~ Figure 6)
Nominal transmission ratio (see Table 2 )
Center distance mm (see Table 1)
Worm position code (vs. 3.1)
Shaft-mounted arc cylindrical worm reducer code α=20) tnm.i=10 , the second assembly type, shaft-mounted arc cylindrical worm reducer with fan and worm under the worm gear is marked:
SCWU 200-10-FJB/T 6387
4|| tt||Basic parameters
4.1
The center distance α and center distance code of the reducer should comply with the provisions of Table 1. Table 1
type
Guangdong
scwu
scws
Scwo
center distance code
/r||tt ||Series
Second series
100
125
140
160
180
200|| tt||Note: Priority is given to the first series. The first series only proposes types, sizes, and drawings to be designed according to user needs. 4.2 The nominal transmission ratio and transmission ratio code of the reducer should comply with the provisions of Table 2. Table 2
Transmission ratio code
1
6.3
10
12.5
16
20||tt| |25
4.3 The worm tooth profile is C1 and its basic tooth profile should comply with the provisions of Appendix A in GB9147. 4.4 The basic parameters and dimensions of worms and worm gears should comply with the provisions of Appendix B in GB9147. 5 Types and sizes
9
31.5
9
225
13
4t
5.1SCWUI type reducer The assembly type and overall dimensions should comply with the requirements of Figure 1, Table 3, Figure 2, and Table 4. 5.2 The assembly type and overall dimensions of the SCWS reducer should comply with the requirements of Figure 3, Table 5, Figure 4, and Table 6. 5.3 The assembly type and external dimensions of the SCWO reducer should comply with Figure 5, Table 7, Figure 6, and Table 8. Provisions. 546
250
11
280
5.0
12
31
1
63| |tt||Model
SCwU
63
80
100
Model
Scwu
63||tt ||80
100
63
80
worm gear shaft hole keyway
150
175
100|| tt||ba
8
12
14
218
33.3
43.3
53.8||tt| |70
85
i
JB/T 6387 --- 92
6-
Two free throws
Picture 1|| tt||Table 3
16
19j6
24j6
28j6
97
110
130||tt ||28
36
42
95
106
140
8
H
60
66
35
21.
31
H
220
267
325
128
5
182
196
24j6
Assembly type
16
28| |tt||36
1
102
125
150
IM8×16
M8X16
M10x20| |tt||f
8
63
69
8
21.3
27
f.
80
100
120
128
151
176
！
n|| tt||3011?
LOH
50H7
通过
kg
不包折油
3
3
24
1
547
??????
SCwU
125
140
160|| tt||180
200
225
250
280
315
548
6D||tt| |125
110
160
180
200
225
250
280
315
235
265
300
330
365
415
175
54|| tt||6on
斗轮长孔线混
JB/T 6387—92
、4D
主个
图2
表4
1-216
32k6
38k6
12k6
42k6
48k6
58||tt| |58
82
Q
82
48k6
182
55k6
82
60m6105
65m6
0e
10
10
2
14
35
41|| tt||15
45
51.5
14 51. 5
16
18
1
5.9| |tt||64
S
218
228
277
292
324
342||tt ||380
430
170

28j6
28j6
32k6
32k6
38k6
38k6
42k6
42|| tt||58
58
58
电影型式（F带高）
t
116
.||tt| |31
8
10
581101
82
48k6
82
18k6
12
14
31
35
11
41
45
151.5
5.| |tt||202
212
253
268
300
318
380
407||tt ||4
60H?
65H7
79F7
80F-17
85H7
95H7
105H7|| tt||15
25:7
18
15
Pr
64.
39.
71.9
100.
120
[25
31
[4
??????
SCWU
125
143
160
180
200
225www.bzxz.net
250
280
315| |tt||1
202
220
245
260
295
320
360||tt ||390
430
.
143
152
158
175
185
198
203
227
252
H.
105
125
125
15G
148
170
150
165
195
f.h8
380
133
470
530
580
640
682
755
850
JB/T 6387- 92
绝表4
1
210
235
270
29
320||tt ||360
420)
150
521
M12X24
13X35
M12×21
13x35|| tt||M:
M16x.
M16X30
M15X30
M16X30
M20X38
M20X38
6|| tt||two sides
图3
35
17X45
17×45
17×45
21×55|| tt||21X55
15
13元
135
150
170
R.
[45:
R
13:
tt..
801180
95160150 105
17
171||tt| |20
115

12
2(8)
22
213[110245
130280233
145265
135132012651||tt ||125
150
383029
170:410/340
电影型式
斗轮长孔线混
280||tt ||5030
12
mm
部分
kg
（不公司油）
138
183| |tt||243
285
30
83
653
549
model
sCws||tt ||63
80
100
??????
Scws
63
80
100
550
63
80
100
12
14
4-0
two sides||tt| |150
175
218
t:
33.3
43.3
53.8
t
1.
ct
19j6
24j6
28j6
70
75
86
H2
I.
97
110
130
JB/T6387
表5
i-.16
6|| tt||8
8
I
95
106
140
6-D
两衡| |tt||21.5
27
31
H
it
66
85
图4|| tt||92
L.
128
15.
82
H
220
267|| tt||325
ci
19j6
24j6
24j6
1)
102
125||tt ||150
28
36
36
M8X16
M8×16
M10X20
216||tt ||f
21.5
27
27
H
d.
63
69||tt| |80
80
1o
120
电影型式（F-带高式）
e
IF
H
斗轮长孔线混
E
28
5
7
3
mm||tt| |30H7
10H7
50H:
质媒
kg
【不公司油】
电视
scws
125
14
160
180
200
225
250
280|| tt||315
model
scws
125
110
160
180
200||tt| |225
250
.--...
280
315
125
140
160| |tt||180
200
225
250
280
315
235
265||tt ||300
330
365
413
475
540
32k6
3856
42k6
42k
48k6
48k61
55k6
ts0m6
60065m6
H,
202
143
220
152
245158
260
295
175
185|| tt||3201108
360
203
3901227
430：252
105
125
125|| tt||150
148
58
58
82
82
82
82||tt| |82
105
.1e
1
2
JB/T 6387- 9
92
表6
35
41
45
4
51.5
151.3
1.6
18| |tt||103
H
380
133
18
59
64
69||tt ||D
218
228
292
324
342
380
430
470
210M12X24
235
270
470
530290
580
170640
150| |tt||682
165
755
195850
320
360
M12X24
M12X24||tt ||M16X30
M16X30
28j6
28j6
32k6
32k6
38k6
38k6
42k6
48k6
48k6
D
13×35
13x35
13×35
17×45| |tt||17×45
M16X3017X45
M16X30
420
450
520
M20X38
M20X38| |tt||17X45
21X55
21X55
16
.42
42
58
58|| tt||58
82
182
82
13
8-4
95
95|| tt||110
115
130
8
10
10
12
31||tt| |31
SE,
35
41
1.5
131.5
14
1451.5
B
84
95
9年
110
115
130
135135
50
170
150
145
160
I
202
212
253|| tt||268
300
1
389
S0H7
65H7
70H7
80H7||tt| |85H7
15H7
105H7
407115H7
447
135
150
170
200
170
90
123E17
80
18
28
2
32|| tt||180
fa.
69.1
nin
120
1:137.3
8.
1
11030. 4
111.
122.4
132.
6
6
0
2
部分
kg
不可以泳）
80
1052001
220
125
2501213
280
320
380
170| |tt||1410
235
265
295
340
1245
12
110||tt ||21512
145126512
125128012
130
150
350
14
15
380
108
133
183
243
286
..
350
483
65
55
model
SCwO
63
80
100
model|| tt||sCwO
63
80
100
552
6D
two sides
63||tt ||80
100
8
12
150
175
218
t:||tt| |33.3
43.3
53.8
JB/T 6387
斗轮长孔线混
图5
表7||tt| |116
tt
19j6
24j6
28j6
I.
70
75
86
I
28
36
12
97
10
30
6| |tt||8
95
106
140
21.5
27
31
H||tt ||92
I.
128
151
182
H
50
66||tt| |85
220
267
325
电影型式
19j6
24j6
24j6
02
23
ls
28
36
36
D:
M8X16
M8X16
16
6
8
8
69
M10X20
80
121.5|| tt||27
27
80
100
120
128
151
17G||tt| |mm||hh||7||hh||30F17||hh||10H7||hh7||h7| |tt||型密
SCwO
125
140
160
180
200
225|| tt||250
280
315
6-D3
主世
质苏
123
140
160
180
200
225
250
280
315
H|| tt||斗轮长孔线混
235
265
300
330
365
415
475| |tt||540
600
32k6
38k6
42k6
42k6
48k6
4856||tt ||55k6！
58
58
82
82
82
82
82||tt| |60m6·105
6516
105
1.16
10
10
2
4||tt| |16. |表8
116
t.
35
41
45
45
31.5||tt| |218
228
277
292
324
51.5
1342
59
64
69
380
430
470
d
h
28j6
28j6|| tt||32k6
32k6
38k6
38k6
42k6
48k6
48k6
42||tt| |42
58
58
58
10
10
10
15810
82
82
82
12
14
14
31
35
35|| tt||41
11
A
51.5
51.
H
202
212||tt ||253
268
300
380
407
D
60H7
6.H7||tt ||70H7
80H7
85H7
9517
105H7
JSH
125117
18
E
25
28
61.1
60.4
mn
107
120
85. 4 71$7.3
50. 4
143
100.4
111
160
168
180
2
353| |tt||
350
483
65
55
??????
SCwO
63
80|| tt||100
model
sCwO
63
80
100
552
6D||tt| | two sides
63
80
100
8
12
150
175
218
t:
33.3
43.3
53.8
JB/T 6387
斗轮长孔线混
图5
表7
116
tt
19j6
24j6
28j6
I.
70
75
86
I
28
36
12
97
10| |tt||30
6
8
95
106
140
21.5
27||tt ||31
H
92
I.
128
151
182
H||tt| |50
66
85
220
267
325
电影型式
19j6
24j6
24j6
02
23
ls
28
36
36
D:
M8X16
M8X16
16
6
8
8
69
M10X20|| tt||80
121.5
27
27
80
100
120
128||tt| |151
17G
mm
7
30F17
10H7
50H7
道作
（不括油）
2.
型密
SCwO
125
140
160
180|| tt||200
225
250
280
315
6-D3
主个
质拉
123
140
160
180
200
225
250
280|| tt||315
H
斗轮长孔线混
235
265
300
330
365| |tt||415
475
540
600
32k6
38k6
42k6
42k6||tt ||48k6
4856
55k6！
58
58
82
82
82||tt| |82
82
60m6·105
6516
105
1.16
10
10||tt| |2
4
16
18
JB/T 6387--92
结果型式（F-带高式）
IF
图6
表8
116
t.
35
41
45||tt| |45
31.5
218
228
277
292
324
51.5
1342
59
64
69
380
430
470
d
h|| tt||28j6
28j6
32k6
32k6
38k6
38k6
42k6
48k6||tt| |48k6
42
42
58
58
58
10
10
10
15810
82
82
82
12
14
14
31|| tt||35
35
41
11
A
51.5
51.
H||tt ||202
212
253
268
300
380
407
D
60H7
6.H7
70H7
80H7
85H7
9517
105H7
JSH
125117
18
E
25
28
61.1
60.4
mn
107| |tt||120
85. 4 71$7.3
50. 4
143
100.4
111
160
168
180
2
353| |tt||
350
483
65
55
??????
SCwO
63
80|| tt||100
model
sCwO
63
80
100
552
6D||tt| | two sides
63
80
100
8
12
150
175
218
t:
33.3
43.3
53.8
JB/T 6387
斗轮长孔线混
图5
表7
116
tt
19j6
24j6
28j6
I.
70
75
86
I
28
36
12
97
10| |tt||30
6
8
95
106
140
21.5
27||tt ||31
H
92
I.
128
151
182
H||tt| |50
66
85
220
267
325
电影型式
19j6
24j6
24j6
02
23
ls
28
36
36
D:
M8X16
M8X16
16
6
8
8
69
M10X20|| tt||80
121.5
27
27
80
100
120
128||tt| |151
17G
mm
7
30F17
10H7
50H7
道作
（不括油）
2.
型密
SCwO
125
140
160
180|| tt||200
225
250
280
315
6-D3
主个
质拉
123
140
160
180
200
225
250
280|| tt||315
H
|tt||415
475
540
600
32k6
38k6
42k6
42k6||tt ||48k6
4856
55k6！
58
58
82
82
82||tt| |82
82
60m6·105
6516
105
1.16
10
10||tt| |2
4
16
18
JB/T 6387--92
结果型式（F-带高式）
IF
图6
表8
116
t.
35
41
45||tt| |45
31.5
218
228
277
292
324
51.5
1342
59
64
69
380
430
470
d
h|| tt||28j6
28j6
32k6
32k6
38k6
38k6
42k6
48k6||tt| |48k6
42
42
58
58
58
10
10
10
15810
82
82
82
12
14
14
31|| tt||35
35
41
11
A
51.5
51.
H||tt ||202
212
253
268
300
380
407
D
60H7
6.H7
70H7
80H7
85H7
9517
105H7
JSH
125117
18
E
25
28
61.1
60.4
mn
107| |tt||120
85. 4 71$7.3
50. 4
143
100.4
111
160
168
180
2
353| |tt||
M8X16
M8X16
16
6
8
8
69
M10X20|| tt||80
121.5
27
27
80
100
120
128||tt| |151
17G
mm
7
30F17
10H7
50H7
道作
（不括油）
2.
型密
SCwO
125
140
160
180|| tt||200
225
250
280
315
6-D3
主个
质拉
123
140
160
180
200
225
250
280|| tt||315
H
|tt||415
475
540
600
32k6
38k6
42k6
42k6||tt ||48k6
4856
55k6！
58
58
82
82
82||tt| |82
82
60m6·105
6516
105
1.16
10
10||tt| |2
4
16
18
JB/T 6387--92
结果型式（F-带高式）
IF
图6
表8
116
t.
35
41
45||tt| |45
31.5
218
228
277
292
324
51.5
1342
59
64
69
380
430
470
d
h|| tt||28j6
28j6
32k6
32k6
38k6
38k6
42k6
48k6||tt| |48k6
42
42
58
58
58
10
10
10
15810
82
82
82
12
14
14
31|| tt||35
35
41
11
A
51.5
51.
H||tt ||202
212
253
268
300
380
407
D
60H7
6.H7
70H7
80H7
85H7
9517
105H7
JSH
125117
18
E
25
28
61.1
60.4
mn
107| |tt||120
85. 4 71$7.3
50. 4
143
100.4
111
160
168
180
2
353| |tt||
M8X16
M8X16
16
6
8
8
69
M10X20|| tt||80
121.5
27
27
80
100
120
128||tt| |151
17G
mm
7
30F17
10H7
50H7
道作
（不括油）
2.
型密
SCwO
125
140
160
180|| tt||200
225
250
280
315
6-D3
主个
质拉
123
140
160
180
200
225
250
280|| tt||315
H
|tt||415
475
540
600
32k6
38k6
42k6
42k6||tt ||48k6
4856
55k6！
58
58
82
82
82||tt| |82
82
60m6·105
6516
105
1.16
10
10||tt| |2
4
16
18
JB/T 6387--92
结果型式（F-带高式）
IF
图6
表8
116
t.
35
41
45||tt| |45
31.5
218
228
277
292
324
51.5
1342
59
64
69
380
430
470
d
h|| tt||28j6
28j6
32k6
32k6
38k6
38k6
42k6
48k6||tt| |48k6
42
42
58
58
58
10
10
10
15810
82
82
82
12
14
14
31|| tt||35
35
41
11
A
51.5
51.
H||tt ||202
212
253
268
300
380
407
D
60H7
6.H7
70H7
80H7
85H7
9517
105H7
JSH
125117
18
E
25
28
61.1
60.4
mn
107| |tt||120
85. 4 71$7.3
50. 4
143
100.4
111
160
168
180
2
353| |tt||H7
70H7
80H7
85H7
9517
105H7
JSH
125117
18| |tt||E
25
28
61.1
60.4
mn
107
120||tt ||85. 4 71$7.3
50. 4
143
100.4
111
160
168
180
2
353| |tt||H7
70H7
80H7
85H7
9517
105H7
JSH
125117
18| |tt||E
25
28
61.1
60.4
mn
107
120||tt ||85. 4 71$7.3
50. 4
143
100.4
111
160
168
180
2
353| |tt||
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