SIEMENS
FLENDER Standard Couplings
Torsionally Rigid Gear Couplings — ZAPEX ZW Series
4/19
Siemens MD 10.1 · 2015
Customized hub design
for ZAPEX ZW Series
4
■
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
beginning of the respective hub. As standard SF1 and SF2 are
identical to each other and the entire S-dimension arises in
accordance 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 cou-
pling is completely described.
Geometric data
The minimal hub lengths are not to fall below the standard hub
lengths. If there's no other possibility, at the hub lengths smaller
than standard hub length 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 ZWN 175, variant A
Hub left: bore D1 = 70H7 mm, keyway to DIN 6885-1 P9
and set screw; NL1 = 160 mm; SF1 = 10 mm
Hub right: bore D2 = 75H7 mm, keyway to DIN 6885-1 P9
and set screw; NL2 = 100 mm; SF2 = 25 mm
Article No.:
2LC0300-3AA99-0AA0-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 = 160 mm
Plain text to
Y41
:
NL2 = 100 mm
Order code for hub prolongations (Y4.); Std-NL = Standard hub length
G_MD10_EN_00184
Part 2
Part 1
Part 2
Part 1
Interstice
Interstice
NL Special
NL Standard
NL Special
S =
SF1 + SF2
S =
SF1 + SF2
SF1 min.
SF2 max.
SF1 max.
SF2 min.
NL Standard
Size
Standard hub length
Minimal dimension
Maximum dimension
NL
SF1 or SF2
SF1 or SF2
Standard
min.
max.
mm
mm
mm
112
50
3
23
128
60
3
30.5
146
75
3
36.5
175
90
4
43
198
100
4
49.5
230
110
4
54
255
125
5
62.5
290
140
5
71
315
160
5
79
342
180
6
94
375
200
6
103
415
220
6
127
465
240
8
146
505
260
8
160
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