SIEMENS
FLENDER Standard Couplings
Torsionally Rigid Gear Couplings — ZAPEX ZN Series
5/3
Siemens MD 10.1 · 2015
General information
5
■
Technical data
Power ratings
The specified torsional stiffness "ZN" applies to coupling types
ZNN, ZNNA, ZNNV and ZNN for axial displacement.
Torsional stiffness of types ZNZS, ZNW, ZNBG and ZNZA
on request.
The axial misalignment
Δ
K
a
must be understood as the
maximum permitted enlargement of the hub distance S of the
coupling.
The axial misalignment
Δ
K
a
does not apply to the types ZNNA,
ZNNV, ZNBG and ZNZA.
Angular misalignment
Δ
K
w
•
Types ZNN, ZNZS, ZNW, ZNNV, ZNN for axial displacement:
Δ
K
w
= 0.5°
•
Types ZNBG, ZNNA, ZNZA:
Δ
K
w
= 0.2°
Radial misalignment
Δ
K
r
•
Types ZNN, ZNZS, ZNW, ZNNV, ZNN for axial displacement:
Δ
K
r
≤
VA
⋅
tan 0.5°
•
Types ZNBG, ZNNA, ZNZA:
Δ
K
r
≤
VA
⋅
tan 0.2°
For the tooth distance VA, see the relevant table for the
subassembly.
Size
Rated torque
Maximum torque
Overload torque
Fatigue torque
Torsional stiffness
Permitted axial shaft
misalignment
ZN
T
KN
T
Kmax
T
KOL
T
KW
C
Tdyn
Δ
K
a
Nm
Nm
Nm
kNm/rad
mm
83
1020
2040
4080
408
500
1
107
2210
4420
8840
884
1400
1
130
4020
8040
16080
1600
2500
1
156
6600
13200
26400
2640
5800
1
181
11000
22000
44000
4400
9200
1
211
19200
38400
76800
7680
16600
1
250
30680
61360
122720
12270
27300
1
274
43550
87100
174200
17400
41500
1.5
307
61750
123500
247000
24700
61000
1.5
333
87100
174200
348400
34800
79000
1.5
364
117000
234000
468000
46800
99000
1.5
424
162500
325000
650000
64800
156000
1.5
© Siemens AG 2015