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<strong>Couplings</strong><br />
REX ® THOMAS ® FLEXIBLE DISC COUPLINGS<br />
HIGH PERFORMANCE SERIES 63<br />
Engineering<br />
Data<br />
Standard Mass-Elastic Data<br />
➂ Max. Peak<br />
Max. Continuous Overload<br />
Change Per Inch of “C”<br />
Cplg.<br />
Weight WR<br />
2 Kt x 106<br />
C.G. Weight WR<br />
2 Kt x 106<br />
Size<br />
(lb.) ( lb.-in.<br />
2<br />
) (lb.-in./Rad.) (in.) (lb.) ( lb.-in . 2<br />
) (lb.-in./Rad.)<br />
Speed<br />
(RPM)<br />
Torque<br />
(lb.-in.)<br />
Torque<br />
(lb.-in.)<br />
162<br />
36,000<br />
5,890<br />
14,700<br />
7.76<br />
16.<br />
5 0.502<br />
0.37<br />
0.19<br />
0.26<br />
10. 5<br />
200<br />
28,600<br />
13,600<br />
34,000<br />
16.<br />
4 59.<br />
8 1.78<br />
0.56<br />
0.27<br />
0.76<br />
29. 9<br />
225<br />
26,700<br />
21,100<br />
52,700<br />
19.<br />
2 78.<br />
2 2.33<br />
0.62<br />
0.28<br />
0.82<br />
33. 6<br />
262<br />
22,500<br />
37,800<br />
94,500<br />
30.<br />
7 167<br />
3.90<br />
0.67<br />
0.42<br />
1.53<br />
62. 7<br />
312<br />
19,100<br />
64,100<br />
160,000<br />
51.<br />
0 397<br />
5.66<br />
0.74<br />
0.63<br />
3.33<br />
137<br />
350<br />
17,200<br />
81,900<br />
205,000<br />
69.<br />
2 666<br />
9.54<br />
0.79<br />
0.67<br />
3.<br />
9 160<br />
375<br />
15,600<br />
126,000<br />
315,000<br />
93.<br />
1 1,100<br />
12.30<br />
0.99<br />
0.89<br />
7.72<br />
317<br />
425<br />
14,300<br />
169,000<br />
423,000<br />
118<br />
1,630<br />
19.<br />
0 0.97<br />
1.21<br />
11.<br />
9 491<br />
450<br />
13,300<br />
213,000<br />
533,000<br />
147<br />
2,330<br />
21.<br />
0 1.09<br />
1.35<br />
15.<br />
5 636<br />
500<br />
11,600<br />
316,000<br />
790,000<br />
214<br />
4,350<br />
34.80<br />
1.20<br />
1.85<br />
25.<br />
8 1,060<br />
550<br />
10,300<br />
454,000<br />
1,135,000<br />
308<br />
7,870<br />
49.90<br />
1.35<br />
2.54<br />
45<br />
1,850<br />
600<br />
9,300<br />
630,000<br />
1,575,000<br />
416<br />
13,000<br />
61.<br />
3 1.37<br />
3.15<br />
63.<br />
5 2,610<br />
700<br />
8,200<br />
903,000<br />
2,258,000<br />
605<br />
24,600<br />
100<br />
1.46<br />
4.25<br />
110<br />
4,510<br />
750<br />
7,500<br />
1,150,000<br />
2,875,000<br />
773<br />
37,000<br />
131<br />
1.52<br />
5.02<br />
162<br />
6,600<br />
Weight and C.G. data based on standard “C” dimension, maximum hydraulic bores (H) and hydraulic hub lengths (B). Torsional stiffness (Kt) assumes<br />
a one-third shaft penetration factor. To determine Kt<br />
1<br />
Larger<br />
sizes are available. Consult Rexnord with specific application requirements.<br />
➂ Consult<br />
Rexnord with higher speed requirements .<br />
for a coupling with longer than standard "C" dimension, use the following formula Kt =<br />
where<br />
▲L = additional “C” dimension required<br />
▲Kt = torsional stiffnes s<br />
1 +<br />
▲L<br />
Kt ▲Kt<br />
change<br />
per inch of “C” dimension and 1/Kt - inverse of catalog value .<br />
For Complete Selection, Dimensions And Mass-Elastic Data, Refer To Rexnord High Performance Coupling Catalog Or Contact Rexnord.<br />
SERIES 63 UNITIZED FLEXING ELEMENT<br />
Features and Benefits<br />
• One-piece assembly–no loose<br />
parts<br />
• Replaceable in the field<br />
• Individually balanced<br />
• Assures repeatable coupling<br />
dynamic balance<br />
• Piloted fit between hubs and<br />
spacer<br />
• Complies with API 671<br />
• Visual inspection without<br />
coupling disassembly<br />
• Compact and lightweight<br />
• Easy to use<br />
UNITIZED FLEXING ELEMENT<br />
NOTE: A coupling is a critical component of any drive system. The basic coupling selection criteria is used to determine the size and<br />
style only. It is recommended that the system be analyzed for torsional and lateral stability using the specific coupling mass elastic data.<br />
The coupling weight, inertia, lateral stiffness, and torsional stiffness are available for this system analysis. It is the responsibility of the<br />
coupling user to assure the system, with the coupling as a component, properly functions.<br />
33
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