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The Enco-FLEX Range of Couplings is composed of four kinds of couplings with the measurements needed to cover shaft diameters from 4mm to Ø14mm:
ALU-FLEX: flexible couplings with aluminium grooves
1 POLY-FLEX: flexible couplings with acetal grooves
SPRING-FLEX: flexible couplings for helicoid springs
OLDHAM-FLEX: couplings for lateral movements
With these ranges you can solve the usual transmission problems that can occur in measuring systems (connecting encoders), of control and power systems with small or moderate torsion pairs.
All the couplings are supplied with a list of their characteristics and with the relevant DIN911 Allen key to tighten the screws and captive screws.
TYPE
ORDERING
CODE
PAR
SPEED
MAXIMUM
MISALIGNMENTS
MAXIMUM ACCEPTED
CONSTANT
ELASTIC
TORSIONAL
MASS
INERTIA


Nominal
N.m
Static
N.m
r.p.m.
Angular
grad.
Axial
± mm
Radial
mm
N.m/rad
g
10-8
Kg.m2
ALU-FLEX
91.131.d1.d2
91.141.d1.d2
91.151.d1.d2
91.142.d1.d2
91.152.d1.d2
0,3
0,5
1,2
0,5
1,2
1,8
3,2
6,0
3,2
6,0
20.000
18.000
12.000
18.000
12.000
2º
2º
2º
2º
2º
0,4
0,4
0,5
0,4
0,5
0,10
0,10
0,15
0,10
0,15
65
120
170
120
170
9
15
24
17
29
76
97
330
99
332
POLY-FLEX
91.231.d1.d2
91.241.d1.d2
91.251.d1.d2
0,5
0,8
1,5
1,4
2,7
5,7
10.000
10.000
8.000
10º
10º
8º
1,0
1,0
1,2
0,8
0,8
0,8
8,5
10,4
21,5
4
6
13
18
39
128
SPRING-FLEX
91.331.d1.d2
91.341.d1.d2
91.351.d1.d2
0,5
0,8
1,5
-
-
-
5.000
5.000
5.000
9º
9º
9º
1,5
1,5
1,5
1,5
2,0
2,6
0,7
1,5
3,0
14
35
68
59,3
276
938
OLDHAM-FLEX
91.541.d1.d2
91.551.d1.d2
91.561.d1.d2
1,6
3,4
8,0
10,2
13,7
48,1
2.500
2.500
2.000
2º
2º
2º
0,2
0,2
0,3
2,0
2,8
3,5
11
23
32
15
30
90
68
276
1283
The values corresponding to pars and maximum speed are given for the case of a joint that is perfectly aligned at 20º

1 Possible parameters of shafts
We can supply the couplings with apertures at any of the measurements shown in the table. The apertures can be different at either end of the coupling.
The diameter of the apertures must be within the margin defined for each kind and size of coupling. Consult the size tables to see the maximum and minimum apertures of each model.
The most usual diameters are available in stock so that we can deliver these references immediately (see tables).
The tolerance in all the apertures is ISO H8.
DIAMETERS
AVAILABLE
(mm) (inch)
DIAMETERS
AVAILABLE
(mm) (inch)
4
4,76
=
3/16'
5
6


6,35
=
1/4'
7


7,94
=
5/16'
8


9
9,53
=
3/8'
10


11
11,11
=
7/16'
12
12,7
=
1/2'
13