Trapezoidal Screw Specifications

Trapezoidal Screw Specifications

Diameter x
lead
d 1
Major dia.
tolerance 4 h
d 2
Effective or pitch dia.
tolerance 7 e
d 3
Minor dia.
tolerance 7 h
Thread
starts
Lead
angle
(1)
Efficiency
(2)
H 1
(mm)
I
Moment
of inertia
mm4
min. max. min. max. min. max. ƒ=0.1 ƒ=0.2
(mm) (mm) (mm)
Tr 40 x 3
Tr 40 x 4
Tr 40 x 5
Tr 40 x 6
Tr 40 x 7
Tr 40 x 8
Tr 40 x10
Tr 40 x 14 (P7)
Tr 40 x 40 (P8)
39.764
39.700
39.665
39.625
39.575
39.550
39.470
39.575
39.550
40.000
40.000
40.000
40.000
40.000
40.000
40.000
40.000
40.000
38.165
37.640
37.094
36.547
36.020
35.493
34.450
36.020
35.493
38.415
37.905
37.394
36.882
36.375
35.868
34.850
36.375
35.868
36.103
35.074
34.019
32.463
31.431
30.399
28.350
31.431
30.399
36.500
35.500
34.500
33.000
32.000
31.000
29.000
32.000
31.000
1
1
1
1
1
1
1
2
5
1°25’
1°55’
2°26’
2°57’
3°30’
4°03’
5°12’
6°58’
19°30’
0.20
0.25
0.30
0.34
0.38
0.41
0.47
0.54
0.75
0.11
0.14
0.17
0.20
0.23
0.26
0.31
0.37
0.60
1.5
2.0
2.5
3.0
3.5
4.0
5.0
3.5
4.0
83395
74290
65740
57950
51030
44560
31700
51030
44560
Tr 44 x 7
Tr 45 x 8
Tr 50 x 3
Tr 50 x 4
Tr 50 x 5
Tr 50 x 6
Tr 50 x 8
Tr 50 x10
Tr 55 x 9
43.575
44.550
49.764
49.700
49.665
49.625
49.550
49.470
54.500
44.000
45.000
50.000
50.000
50.000
50.000
50.000
50.000
55.000
40.020
40.493
48.150
47.605
47.094
46.547
45.468
44.425
49.935
40.375
40.868
48.415
47.905
47.394
46.882
45.868
44.850
50.360
35.431
35.399
46.084
45.074
44.019
42.463
40.368
38.319
44.329
36.000
36.000
46.500
45.500
44.500
43.000
41.000
39.000
45.000
1
1
1
1
1
1
1
1
1
3°09’
3°33’
1°08’
1°31’
1°55’
2°20’
3°10’
4°03’
3°15’
0.35
0.38
0.16
0.21
0.25
0.29
0.35
0.41
0.36
0.21
0.23
0.09
0.12
0.14
0.17
0.21
0.26
0.22
3.5
4.0
1.5
2.0
2.5
3.0
4.0
5.0
4.5
81820
81245
121400
202600
184300
167240
136930
105834
189550
Tr 60 x 6
Tr 60 x 7
Tr 60 x 9
Tr 70 x 10
Tr 80 x 10
Tr 90 x 12
Tr 95 x 16
59.625
59.575
59.500
69.470
79.470
89.400
94.290
60.000
60.000
60.000
70.000
80.000
90.000
95.000
56.547
56.020
54.935
64.425
74.425
83.335
86.250
56.882
56.375
55.360
64.850
74.850
83.830
86.810
52.463
51.431
49.329
58.319
68.319
76.246
76.110
53.000
52.000
50.000
59.000
69.000
77.000
77.000
1
1
1
1
1
1
1
1°55’
2°16’
2°57’
2°48’
2°26’
2°36’
3°21’
0.25
0.28
0.34
0.33
0.30
0.31
0.37
0.14
0.16
0.20
0.19
0.17
0.18
0.22
3.0
3.5
4.5
5.0
5.0
6.0
8.0
386240
343450
302600
587540
1069390
1658969
1647164
Tr 100 x 12
Tr 100 x 16
Tr 120 x 14
Tr 120 x 16
Tr 140 x 14
Tr 160 x 16
99.400
99.290
119.330
119.290
139.330
159.290
100.000
100.000
120.000
120.000
124.000
142.000
93.330
91.250
112.290
111.250
132.290
151.250
93.830
91.810
112.820
111.810
132.820
151.810
86.215
81.110
103.157
101.110
123.157
141.110
87.000
82.000
104.000
102.000
124.000
142.000
1
1
1
1
1
1
2°19’
3°10’
2°16’
2°36’
1°55’
1°55’
0.29
0.35
0.28
0.31
0.25
0.25
0.17
0.21
0.16
0.16
0.14
0.14
6.0
8.0
7.0
8.0
7.0
8.0
2712072
2124553
5558591
5130342
11292921
19462609

(1) Useful effect for conversion of rotary movement to linear movement with friction coefficient ƒ =0.1 and ƒ =0.2.
(2) Radial support dimension between screw and nut teeth