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Goodrich API 671 Standard & Reduced Moment Couplings
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High Performance
Alloy Steel
87/88 Series
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Maximum Performance Stainless Steel
99/100 Series
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Type
Size |
Max1
Continuous
Torque
|
Axial2
Deflection |
Max1
Continuous
Torque
|
Axial2
Deflection |
Misalignment
per End |
Parallel3
Offset |
Limit
Speed |
Coupling4
O.D.
A |
Max5
Bore
B |
| |
(in-lb.)
|
(+/- in.) |
(in-lb.)
|
(+/- in.) |
(+/- Deg) |
(in./in.) |
(RPM) |
(in.) |
(in.) |
| 305 |
19,000 |
0.055 |
29,000 |
0.049 |
0.333 |
0.0058 |
35,000 |
6.055 |
2.75 |
| 405 |
26,000 |
0.044 |
38,000 |
0.040 |
0.250 |
0.0044 |
40,000 |
6.055 |
|
| 505 |
32,000 |
0.039 |
48,000 |
0.032 |
0.200 |
0.0035 |
45,000 |
6.055 |
1.75 |
| 605 |
38,000 |
0.034 |
58,000 |
0.026 |
0.167 |
0.0029 |
50,000 |
6.055 |
|
| |
|
|
|
|
|
|
|
|
|
| 306 |
38,000 |
0.058 |
57,000 |
0.060 |
0.333 |
0.0058 |
28,000 |
7.055 |
3.45 |
| 406 |
51,000 |
0.053 |
76,000 |
0.047 |
0.250 |
0.0044 |
33,000 |
7.055 |
|
| 506 |
63,000 |
0.046 |
95,000 |
0.040 |
0.200 |
0.0035 |
38,000 |
7.055 |
2.50 |
| 606 |
75,000 |
0.032 |
114,000 |
0.033 |
0.167 |
0.0029 |
43,000 |
7.055 |
|
| |
|
|
|
|
|
|
|
|
|
| 308 |
83,000 |
0.082 |
127,000 |
0.075 |
0.333 |
0.0058 |
23,000 |
9.175 |
4.75 |
| 408 |
113,000 |
0.070 |
169,000 |
0.063 |
0.250 |
0.0044 |
28,000 |
9.175 |
|
| 508 |
141,000 |
0.061 |
212,000 |
0.051 |
0.200 |
0.0035 |
33,000 |
9.175 |
3.25 |
| 608 |
170,000 |
0.054 |
245,000 |
0.047 |
0.167 |
0.0029 |
35,000 |
9.175 |
|
| |
|
|
|
|
|
|
|
|
|
| 310 |
158,000 |
0.101 |
238,000 |
0.086 |
0.333 |
0.0058 |
20,000 |
10.930 |
5.95 |
| 410 |
211,000 |
0.087 |
317,000 |
0.072 |
0.250 |
0.0044 |
25,000 |
10.930 |
|
| 510 |
264,000 |
0.076 |
397,000 |
0.058 |
0.200 |
0.0035 |
28,000 |
10.930 |
4.00 |
| 610 |
316,000 |
0.067 |
477,000 |
0.050 |
0.167 |
0.0029 |
30,000 |
10.930 |
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| |
|
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|
|
| 312 |
289,000 |
0.118 |
435,000 |
0.105 |
0.333 |
0.0058 |
19.000 |
13.050 |
7.33 |
| 412 |
386,000 |
0.104 |
580,000 |
0.087 |
0.250 |
0.0044 |
22,000 |
13.050 |
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| 512 |
482,000 |
0.091 |
725,000 |
0.073 |
0.200 |
0.0035 |
25,000 |
13.050 |
4.50 |
| 612 |
580,000 |
0.080 |
870,000 |
0.062 |
0.167 |
0.0029 |
27,000 |
13.050 |
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| |
|
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|
|
|
|
|
|
|
| 314 |
429,000 |
0.128 |
646,000 |
0.115 |
0.333 |
0.0058 |
17,000 |
14.805 |
8.32 |
| 414 |
572,000 |
0.115 |
861,000 |
0.097 |
0.250 |
0.0044 |
20,000 |
14.805 |
|
| 514 |
715,000 |
0.101 |
1,076,000 |
0.081 |
0.200 |
0.0035 |
23,000 |
14.805 |
5.00 |
| 614 |
855,000 |
0.090 |
1,293,000 |
0.068 |
0.167 |
0.0029 |
25,000 |
14,805 |
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| 316 |
682,000 |
0.136 |
1,029,000 |
0.126 |
0.333 |
0.0058 |
15,000 |
16.805 |
9.66 |
| 416 |
910,000 |
0.126 |
1,373,000 |
0.107 |
0.250 |
0.0044 |
17,000 |
16.805 |
|
| 516 |
1,138,000 |
0.112 |
1,715,000 |
0.090 |
0.200 |
0.0035 |
20,000 |
16.805 |
6.00 |
| 616 |
1,365,000 |
0.100 |
2,059,000 |
0.076 |
0.167 |
0.0029 |
22,000 |
16.805 |
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| 318 |
925,000 |
0.162 |
1,390,000 |
0.148 |
0.333 |
0.0058 |
14,000 |
18.805 |
10.67 |
| 418 |
1,234,000 |
0.148 |
1,854,000 |
0.125 |
0.250 |
0.0044 |
16,000 |
18.805 |
. |
| 518 |
1,543,000 |
0.131 |
2,317,000 |
0.106 |
0.200 |
0.0035 |
19,000 |
18.805 |
6.87 |
| 618 |
1,851,000 |
0.116 |
2,781,000 |
0.091 |
0.167 |
0.0029 |
21,000 |
18.805 |
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|
|
|
| 322 |
1,763,000 |
0.211 |
2,651,000 |
0.172 |
0.333 |
0.0058 |
12,000 |
22.550 |
14.66 |
| 422 |
2,352,000 |
0.196 |
3,535,000 |
0.148 |
0.250 |
0.0044 |
14,000 |
22.550 |
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| 522 |
2,938,000 |
0.154 |
4,418,000 |
0.128 |
0.200 |
0.0035 |
16,000 |
22.550 |
8.75 |
| 622 |
3,525,000 |
0.137 |
5,301,000 |
0.108 |
0.167 |
0.0029 |
19,000 |
22.550 |
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1 Peak torque is 133% of the maximum continuous torque. Coupling subjected to transient conditions should be evaluated using the Peak torque. Limit torque is 180% of the maximum continuous torque. Couplings subjected to a "one time" momentary load should be evaluated using the Limit torque.
2 Axial deflection is based on the maximum continuous torque listed. It is possible to trade off axial, torque and rated speed. Contact Goodrich Engineering for additional information.
3 Parallel offset equals the value shown multiplied by the distance between flexures.
4 Nominal dimension is for the piloted units (88 & 100 Series). Fitted bolt units (87 & 99 Series) is 0.360 inches less than tabulated value.
5 The maximum bore capacity shown are for tapered shaft ends. (Consult Goodrich for straight shaft ends). The first value for each size is for our standard couplings and the second is for our low moment couplings.
Figure 3 Standard Couplings
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Figure 4 Reduced Moment Couplings
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