You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
<strong>Couplings</strong><br />
REX ® THOMAS ® FLEXIBLE DISC COUPLINGS<br />
TYPE SN-GA<br />
Replaces troublesome gear couplings on pulp and paper applications. The Thomas one-piece, factory-torqued assembly is easy to install.<br />
This coupling is designed to bolt directly to existing rigid hubs using the gear coupling bolts. Axial shims are supplied for minor axial positioning<br />
adjustment.<br />
Construction<br />
Hubs and Center Assembly: Carbon Steel<br />
Bolts: Alloy Steel<br />
Disc Packs: Stainless Tpack<br />
Coatings Available: Black Oxide, Zinc, Cadmium<br />
Other materials such as Tomaloy, Stainless<br />
Steel, Monel and Inconel are available; please<br />
consult Rexnord Industries, Inc.<br />
Misalignment: 1 /3° per disc pack<br />
Gear Coupling<br />
(Falk)<br />
Thomas<br />
Coupling<br />
226<br />
262<br />
312<br />
350<br />
375<br />
425<br />
450<br />
500T<br />
550T<br />
600T<br />
700T<br />
750T<br />
800T<br />
850T<br />
Available Adapters<br />
# 1<br />
1 /2 # 2 # 2<br />
1 /2 # 3 # 3<br />
1 /2 # 4 # 4<br />
1 /2 # 5 # 5<br />
1 /2 # 6 #7<br />
( 1015)<br />
(1020) ( 1025)<br />
(1030) ( 1035)<br />
(1040) ( 1045)<br />
(1050) ( 1055)<br />
(1060) (1070)<br />
Other sizes available – consult Rexnord.<br />
L<br />
(Typical)<br />
MD<br />
N<br />
(Typical)<br />
A<br />
Engineering Data<br />
Max Horsepower<br />
Per 100 RPM<br />
➁<br />
➀<br />
Max. Continuous Peak Overload<br />
Axial<br />
Coupling Service Factor Torque<br />
Torque<br />
Min.<br />
Capacity<br />
Size<br />
1.0<br />
(lb.-in.)<br />
( lb.-in.)<br />
A L MD (3) N<br />
(in.)<br />
226<br />
22.<br />
6<br />
14,260<br />
28,520<br />
5.81<br />
4.00<br />
16.25<br />
0.58<br />
0.036<br />
262<br />
34.<br />
9<br />
22,000<br />
44,000<br />
6.69<br />
4.50<br />
17.25<br />
0.47<br />
0.043<br />
312<br />
44.<br />
7<br />
28,200<br />
56,400<br />
7.81<br />
5.12<br />
20.00<br />
0.50<br />
0.051<br />
350<br />
55.<br />
7<br />
35,100<br />
70,200<br />
8.75<br />
5.31<br />
22.12<br />
0.54<br />
0.056<br />
375<br />
123<br />
77,300<br />
154,600<br />
9.69<br />
6.62<br />
26.00<br />
0.59<br />
0.062<br />
425<br />
187<br />
117,850<br />
235,700<br />
10.50<br />
6.50<br />
26.25<br />
0.62<br />
0.067<br />
450➂ 216<br />
136,000<br />
272,000<br />
11.31<br />
6.75<br />
28.50<br />
0.78<br />
0.072<br />
500T<br />
369<br />
232,400<br />
464,800<br />
12.88<br />
7.25<br />
30.00<br />
0.78<br />
0.082<br />
550T<br />
427<br />
269,200<br />
538,400<br />
14.44<br />
7.75<br />
33.50<br />
0.91<br />
0.092<br />
600T<br />
652<br />
411,000<br />
822,000<br />
16.00<br />
9.12<br />
36.74<br />
0.98<br />
0.102<br />
700T<br />
871<br />
549,000<br />
1,098,000<br />
18.25<br />
9.25<br />
40.50<br />
1.20<br />
0.115<br />
750T<br />
1,001<br />
631,000<br />
1,262,000<br />
19.81<br />
9.75<br />
43.00<br />
1.27<br />
0.125<br />
800T<br />
1,441<br />
908,000<br />
1,816,000<br />
21.50<br />
10.25<br />
– 1.34<br />
0.136<br />
850T<br />
1,756<br />
1,107,000<br />
2,214,000<br />
23.00<br />
10.25<br />
– 1.40<br />
0.144<br />
For larger sizes, consult Rexnord. For ordering instructions, see Page 10-11.<br />
➀ All Thomas disc couplings meet NEMA frame sleeve bearing motor specifications without modification or the addition of end-float restricting devices .<br />
➁ The Peak Overload Torque is not an alternating torque limit.<br />
➂ Available with Tpackfor new couplings, not retrofittable in size 450.<br />
Note: Dimensions subject to change. Certified dimensions of ordered material furnished on request. 25
Change language