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ELASTOMERIC Couplings Catalog - Kop-Flex - #9

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KOP-FLCX® ELASTOMERIC™ Couplings
Type DO Dimensional and Assembly Data
Shaft Hub Type R
Shaft Separation
Quantities Per Assembly
Max. Bore
Coupling
No Bore
Weight
Std.
Std.
Coupling Hub
Size
Part
(lbs.)
Min.
Dim.
Min.
Max.
Shaft
Flex
Number
Bore
With Std.
Kwy Size
B
(2)
(3)
Dim. C
(4)
Hub A
Hub B
Hub
C
Hub
Elem.
Kwy
20 DOBB
2.0
61/4
3 7/16
31/2
33/4
2
2
1
20
20 DOBC
2.3
3/4
1 3/8
5/16x5/32
73/4
415/16
5
51/4
1
1
2
1
20 DOCC
2.5
91/4
6 7/16
61/2
63/4
2
2
1
30 DOBB
2.8
63/4
3 5/16
31/2
33/4
2
2
1
30
30 DOBC
3.2
3/4
1 5/8
3/8x3/16
81/4
413/16
5
51/4
1
1
2
1
30 DOCC
3.4
93/4
6 5/16
61/2
63/4
2
2
1
40 DOAA
5.4
71/8
3 1/2
35/8
33/4
2
2
1
40 DOAB
5.6
713/16
43/16
45/16
41/2
1
1
2
1
40
40 DOBB 40 DOAC
5.8 6.3
3/4
13/4
3/8x3/16
81/2
10 1/16
47/8 67/16
5
69/16
51/4 67/8
1
2
1
2 2
11
40 DOBC
6.5
10 3/4
71/8
71/4
71/2
1
1
2
1
40 DOCC
7.1
13
9 3/8
91/2
10
2
2
1
50 DOAA
8.2
87/8
3 7/8
41/8
43/8
2
1
50 DOAB
8.4
95/16
49/16
45/16
413/16
1
1
2
1
50
50 DOBB
8.6
3/4
23/8
5/8x5/16
93/4
43/4
5
51/4
2
2
1
50 DOAC
9.2
11 9/16
6 9/16
613/16
71/16
1
1
2
1
50 DOBC
9.4
12
7
71/4
71/2
1
1
2
1
50 DOCC
10.2
14 1/4
9 1/4
91/2
10
2
2
1
60 DOAA
10.0
93/8
3 7/8
41/8
43/8
2
1
60 DOAB
10.2
9 13/16
45/16
4 9/16
4 13/16
1
1
2
1
60
60 DOBB
10.4
1 1/8
25/8
5/8x5/16
10 1/4
43/4
5
51/4
2
2
1
60 DOAC
11.2
12 1/16
69/16
613/16
71/16
1
1
2
1
60 DOBC
11.4
12 1/2
7
71/4
71/2
1
1
2
1
60 DOCC
12.3
14 3/4
9 1/4
91/2
10
2
2
1
70 DOAA
15.2
10 3/8
4 5/16
43/8
45/8
2
1
70 DOAB
15.4
10 11/16
45/8
411/16
415/16
1
1
2
1
70
70 DOBB
15.6
1 1/8
3/4 x 3/8
11
415/16
5
51/4
2
2
1
70 DOAC
16.6
3
12 15/16
67/8
615/16
73/16
1
1
2
1
70 DOBC
16.8
13 1/4
73/16
71/4
71/2
1
1
2
1
70 DOCC
18.0
15 1/2
9 7/16
91/2
10
2
2
1
80 DOAA
26.3
13 3/16
5 1/4
57/16
53/4
2
1
80 DOAB
26.9
14 3/32
65/32
621/32
613/16
1
1
2
1
80
80 DOBB 80 DOAC
27.6 28.9
13/8
33/4
7/8 x 7/16
15
16 19/32
71/16 821/32
71/4 827/32
71/2 93/32
1
2
1
2 2
11
80 DOBC
29.6
17 1/2
99/16
93/4
10
1
1
2
1
80 DOCC
31.7
20
12 1/16
12 1/4
12 1/2
2
2
1
90 DOBB
51.0
16 1/4
6 5/8
71/4
71/2
2
2
1
90
90 DOBC
53.8
15/8
41/4
1 x 1/2
18 3/4
91/8
93/4
10
1
1
2
1
90 DOCC
56.6
21 1/4
11 5/8
12 1/4
12 1/2
2
2
1
Two shaft hubs (type R) will always be supplied unless ordered "LESS SHAFT HUBS".
(1) All finish bores will be for clearance fit with set screw over the keyway unless ordered otherwise.
(2) Minimum shaft separation is obtained by allowing the shafts to protrude slightly beyond the faces of the type R shaft hubs. Hub separation C and dimension L must be maintained as listed.
(3) Standard shaft separations are obtained when type R shaft hubs are mounted flush with shaft ends. In this case the shaft separation is the same as the hub separation, dimension C.
(4) Maximum shaft separation is obtained by allowing type R shaft hubs to slightly overhang their shafts. Maximum hub separations tabulated, are based on an overhang of 1/4" or less per hub. Excessive shaft hub overhang increases hub and key stresses.
(5) Interference fits up to .0005"/in. of shaft diameter are permissible providing maximum bore with interference fit is 1/4" less than maximum clearance fit bore indicated by note (1).
(6) Weight shown is total coupling weight based on maximum bore.
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