Couplings

REX ® THOMAS ® MINIATURE COUPLINGS
Couplings
STYLE CE
Two single-flexing units are connected by a tubular shaft in this type of miniature coupling. It’s designed to span large distances between
shafts. Ideal for those applications where a large amount of parallel misalignment is anticipated.
AXIAL
CAPACITY
➂
A
G
B
L
F
B
General Dimensions (inch)
Coupling
Size
A B F G L
➁ Torque
Capacity
(lb.-in.)
1 W eight
( oz)
Weight
Change
per inch
of “L”
(oz.)
12
1
/2
1 /4
5
/ 16
1.1
0.45
0.027
18
3
/4
3 /8
1 5/ 32
2.
2 0.97
0.048
25
1 1 /2
Varies
/8
Variable
4.
7 1.70
0.059
37
1 7 / 16
/ 16
W ith
/8 To Suit 19.
0 4.10
0.110
50
1 3 /4
5/ 16
“ L”
1 1 / 16
Requirements
75.
0 7.80
0.180
62
2 1 Specified
/4 1 1 / 16
1 3 /8 300
14.30
0.220
75
2 1 /2 1 3 / 16
1 5 /8 440
18.10
0.380
100
3 1 3 /8 1 7 /8 700
1 Weight calculated at maximum bore and “L” = 12 inches .
➁ Torque capacities are based on smooth drives with moderate torque fluctuations. Reduce
ratings
to
/3 the value shown for severe applications such as indexing drives where torque
reversals
occur.
➂ A ll Thomas disc couplings meet NEMA frame sleeve bearing motor specifications without
modification or the addition of end-float restricting devices.
➃ For
WR
2
, misalignment capacities, and torsional rigidity, consult Rexnord .
MINIATURE COUPLINGS STANDARD BORE SIZES ➀
CC, CA, CB, CBC & CE Couplings
Bores
➁ ➂
(in.)
Bores
➁ ➂
(in.)
Coupling
Size
Hub Inside
Center Member
Hub Outside
Center Member
Coupling
Size
Hub Inside
Center Member
Hub Outside
Center Member
0.0781,
0.0937 0.1200, 0.1250
0.2505,
0.3130 0.2505, 0.3130
12 0.1200,
0.1250 0.1562,
0.1875
50 0.3755,
0.4380
0.3755, 0.4380
0.5005
0.5005, 0.6255
0.0937,
0.1200 0.1250, 0.1562
0.3755,
0.4380 0.4380, 0.5005
18 0.1250,
0.1562 0.1875,
0.2500
62 0.5005,
0.6255
0.6255, 0.7505
0.1875
0.1255,
0.1880 0.1255, 0.1880
0.4380,
0.5005 0.5005, 0.6255
25 0.2505
0.2505,
0.3130
75 0.6255,
0.7505
0.7505, 0.8755
0.3755
1.0005
0.1255,
0.1880 0.1880, 0.2505
0.6255,
0.7505 0.7505, 0.8755
37 0.2505,
0.3130 0.3130,
0.3755
100 0.8755,
1.0005
1.0005, 1.1255
0.3755
0.4380,
0.5005
1.2505
➀ Coupling not available with rough bore. Other bore sizes can be furnished. Consult Rexnord .
➁ Tolerances. Sizes 12 and 18, ±0.0003". Other sizes, ±0.0005" .
➂ The largest bore shown for each hub is maximum allowable bore. If larger bore is required,
consult Rexnord.
36
Note: Dimensions subject to change. Certified dimensions of ordered material furnished on request.