SIEMENS
FLENDER Standard Couplings
Torsionally Rigid Gear Couplings — ZAPEX ZN Series
Customized hub design
for ZAPEX ZN Series
5/12
Siemens MD 10.1 · 2015
5
■
Selection and ordering data
ZAPEX couplings can be provided with customized S-dimen-
sions and hub lengths.
The entire dimension S results from the sum of the individual
measurements SF1 and SF2. SF1 and SF2 are the measure-
ments from the interstice of the coupling ring flange up to the be-
ginning of the respective hub. As standard SF1 and SF2 are
identical to each other and the entire S-dimension arises in ac-
cordance with them.
SF1 and SF2 can be chosen different on customer request, how-
ever the minimal and maximum values of the following table
have to be observed. Within these limits the measurements SF1
and SF2 may be chosen freely.
The distance VA of the coupling teeth, the permitted bore diam-
eter and the hub diameter remain unchanged.
By stating the hub S-dimension and both hub lengths the
coupling is completely described.
Geometric data
The minimal hub lengths are not to fall below the standard hub
lengths.
If there‘s no other possibility, for hub lengths smaller than stan-
dard hub lengths the order codes
"Y50"
for part 1 and
"Y51"
for
part 2 must be stated in plain text.
Article number
The article number of the respective ZAPEX coupling type must
be supplemented with
"-Z"
and order codes for no standard SF-
dimensions (order code
"Y38"
for part 1 and
"Y39"
for part 2).
For no standard hub lengths the order codes
"Y40"
to
"Y49"
must be specified
(see the table below)
.
Ordering example:
ZAPEX coupling ZNN 130, variant A
Hub left: bore D1 = 70H7 mm, keyway to DIN 6885-1 P9
and set screw; NL1 = 110 mm; SF1 = 10 mm
Hub right: bore D2 = 75H7 mm, keyway to DIN 6885-1 P9
and set screw; NL2 = 75 mm; SF2 = 25 mm
Article No.:
2LC0330-2AA99-0AA0-Z
L1G M1H Y38 Y39 Y41 Y46
Plain text to
Y38
:
SF1
=
10 mm
Plain text to
Y39
:
SF2
=
25 mm
Plain text to
Y46
:
NL1 =
110 mm
Plain text to
Y41
:
NL2 =
75 mm
Order code for hub prolongations (Y4.); Std-NL = Standard hub length
Part 2
G_MD10_EN_00183
Part 1
Part 2
Part 1
Interstice
Interstice
S =
SF1 + SF2
S =
SF1 + SF2
SF2 max.
SF1 min.
SF2 min.
SF1 max.
NL Special
NL Special
NL Standard
NL Standard
Size
Standard hub lenght
Minimal dimension
Maximum dimension
NL
SF1 or SF2
SF1 or SF2
Standard
mm
min.
mm
max.
mm
83
43
1.5
22
107
50
1.5
23.5
130
62
1.5
32
156
76
2.5
36.5
181
90
2.5
43.5
211
105
3
51
250
120
3
59
274
135
4
64.5
307
150
4
72
333
175
4
85
364
190
4
92
424
220
5
100
Part 1
Selected (special) hub length
Order code
min.
max.
>
Std-NL
≤
1.25 · Std-NL
Y40
(specification of hub length in plain text)
>
1.25 · Std-NL
≤
1.5 · Std-NL
Y42
(specification of hub length in plain text)
>
1.5 · Std-NL
≤
1.75 · Std-NL
Y44
(specification of hub length in plain text)
>
1.75 · Std-NL
≤
2 · Std-NL
Y46
(specification of hub length in plain text)
>
2 · Std-NL
Y48
(specification of hub length in plain text)
Part 2
Selected (special) hub length
Order code
min.
max.
>
Std-NL
≤
1.25 · Std-NL
Y41
(specification of hub length in plain text)
>
1.25 · Std-NL
≤
1.5 · Std-NL
Y43
(specification of hub length in plain text)
>
1.5 · Std-NL
≤
1.75 · Std-NL
Y45
(specification of hub length in plain text)
>
1.75 · Std-NL
≤
2 · Std-NL
Y47
(specification of hub length in plain text)
>
2 · Std-NL
Y49
(specification of hub length in plain text)
© Siemens AG 2015