SIEMENS
FLENDER Standard Couplings
Torsionally rigid all-steel couplings — N-ARPEX ARN-6 series
6/7
Siemens MD 10.1 N · 04/2017
Type MCECM
6
■
Selection and ordering data
Torsionally rigid couplings of type MCECM with radially freely dismountable preassembled intermediate unit and fly-away prevention
for securing the intermediate spacer if a plate breaks.
Standard coupling design in accordance with
API 610
. Coupling design in accordance with
API 671
possible.
Hubs are designed with threaded pull-off holes.
Special lengths available on request.
The total lengths, the weights, and the mass moments of inertia
apply to the entire coupling with maximum bores D1/D2 and the
preferred shaft distance S.
Plate packs in the CEC intermediate unit assembled at the fac-
tory.
Ordering example:
N-ARPEX coupling ARN-6 MCECM, size 217-6, with shaft
distance S = 200 mm (
2LC0370-8AC99-0AD0
),
Bore ØD1 50H7 mm, with keyway to DIN 6885-1 and set screw
(
L1C
/ for an overview of order codes,
see page 6/12
),
Bore ØD2 60H7 mm, with keyway to DIN 6885-1 and set screw
(
M1E
/ for an overview of order codes,
see page 6/12
)
Article No.:
2LC0370-8AC99-0AD0
L1C+M1E
ØDZ
ØD1
ØDA
ØND1
ØD2
ØND2
(LG)
NL1
NL2
LZ
S1
G_MD10_XX_00246
SZ
S
M
C
M
C
E
Size
Rated
torque
Maxi-
mum
speed
Dimensions in mm
Mass
moment
of inertia
Article No.
Further information on the
structure of the Article No.
is
provided in Catalog
MD 10.1, Chapter 3.
Weight
T
KN
n
max
Bore with
keyway to
DIN 6885-1
Shaft distance
V = Preferred dimension
DA
D1/D2
ND1/
ND2
NL1/
NL2
DZ
SZ
LZ
S1
S
100
140
180
200
250
300
5 " (127)
7 " (177.8)
9 " (228.6)
LG
J
m
mm
Nm
rpm
max.
V
kgm
2
kg
86-6
350
24000
42
62
42
46
5.5
84.0
8.0
140
A
B
C
N
P
S 224
0.0030
2LC0370-0AC
■
■
-0A
■
0
3.1
103-6
500
20000
55
72
55
63
4.0
83.2
8.4
140
A
B
C
N
P
S 250
0.0063
2LC0370-1AC
■
■
-0A
■
0
4.4
122-6
950
17000
70
91
70
73
4.0
82.4
8.8
140
B
C
D
E
N
P
S 280
0.0155
2LC0370-2AC
■
■
-0A
■
0
7.6
133-6
1250
15000
80
103
80
85
5.0
80.8
9.6
140
B
C
D
E
P
S 300
0.0236
2LC0370-3AC
■
■
-0A
■
0
9.4
159-6
2100
13000
95
123
95
100
5.0
76.8
11.6
140
B
C
D
E
P
S 330
0.0539
2LC0370-4AC
■
■
-0A
■
0
15.0
174-6
2400
12000
105
136
105
116
5.5
74.4
12.8
140
B
C
D
E
P
S 350
0.0840
2LC0370-5AC
■
■
-0A
■
0
19.4
184-6
3800
11000
110
142
110
124
7.0
110.8 14.6
200
D
E
P
S 420
0.0853
2LC0370-6AC
■
■
-0A
■
0
25.6
203-6
5000
10000
115
150
115
128
6.5
110.0 15.0
200
D
E
P
S 430
0.1829
2LC0370-7AC
■
■
-0A
■
0
31.8
217-6
6200
9500
130
168
130
140
7.5
109.2 15.4
200
D
E
S 460
0.2655
2LC0370-8AC
■
■
-0A
■
0
39.7
251-6
10500
8000
150
193
150
160
10.0 138.8 20.6
250
E
S 550
0.5583
2LC0371-0AC
■
■
-0A
■
0
62.7
268-6
13800
7500
160
206
160
170
10.0 136.0 22.0
250
E
570
0.7773
2LC0371-1AC
■
■
-0A
■
0
76.0
291-6
18200
7000
170
221
170
190
10.0 134.4 22.8
250
E
590
1.1127
2LC0371-2AC
■
■
-0A
■
0
92.4
318-6
23000
6500
190
245
190
205
12.5 153.6 23.2
300
F
680
1.9087
2LC0371-3AC
■
■
-0A
■
0
131.7
343-6
28000
6000
205
267
205
230
15.0 152.0 24.0
300
F
710
2.7346
2LC0371-4AC
■
■
-0A
■
0
161.6
ØD1:
• Without finished bore – Without order codes for diameter and tolerance
1
• With finished bore – With order codes for diameter and tolerance
(Article No. without
"-Z"
; for an overview of order codes,
see page 6/12
)
9
ØD2:
• Without finished bore – Without order codes for diameter and tolerance
1
• With finished bore – With order codes for diameter and tolerance
(Article No. without
"-Z"
; for an overview of order codes,
see page 6/12
)
9
Shaft
dis-
tance S:
• Codes for metric (mm) =
A
,
B
,
C
,
D
,
E
,
F
• Imperial (inches) =
N
,
P
,
S
© Siemens AG 2017