Guide units FEN/FENG for standard cylinders
Guide units FEN/FENG for standard cylinders
Key features
At a glance
The guide units FEN and FENG protect
standard cylinders from torsion when
these are subjected to high torque
loads.
They offer high precision guidance for
workpiece handling and other
handling applications.
Two guide variants are available:
Plain-bearing guide (GF)
Recirculating ball bearing guide (KF)
Drive/guide unit combination options
Drive/guide unit
DNC
DSBC
DSN
DSBG
DSNU
FEN
–
–
–
n
n
n
n
n
–
–
FENG
è Page/Internet
dnc
dsbc
dsbg
dsn
dsnu
Position sensing
With standard cylinder DNC:
When installed a mounting kit is
required to sense the front end
position. The rear end position can be
sensed directly via the sensor slot.
Mounting kits
Drive
Piston 
DSNU-…-A
DNC-…-A
2
8
10
12
16
20
25
32, 40
50, 63
80, 100
With standard cylinder DSNU:
With these standard cylinders, a
mounting kit is absolutely necessary
for sensing the end positions.
Part No.
Type
175091
175092
175093
175094
175095
175096
175705
175706
175707
SMBR-8-8
SMBR-8-10
SMBR-8-12
SMBR-8-16
SMBR-8-20
SMBR-8-25
SMB-8-FENG-32/40
SMB-8-FENG-50/63
SMB-8-FENG-80/100
è Internet: www.festo.com/catalog/...
Subject to change – 2016/03
Guided units FEN/FENG for standard cylinders
Type codes
FENG
—
50
—
160
—
GF
Type
FEN
FENG
Guided unit to ISO 6432
Guided unit to ISO 15552
Pistonj [mm]
Stroke [mm]
c
Guide
GF
KF
Plain-bearing guide
Recirculating ball bearing guide
2016/03 – Subject to change
è Internet: www.festo.com/catalog/...
3
Guide units FEN/FENG for standard cylinders
Technical data
-W-
FEN to ISO 6432
-N-T-
Diameter
8 … 25 mm
www.festo.com
Stroke length
1 … 250 mm
FENG to ISO 15552
-N-T-
Diameter
32 … 100 mm
Stroke length
10 … 500 mm
General technical data
Type
Piston 
Stroke
Guide
FEN/FENG-…-GF
FEN/FENG-…-KF
Type of mounting
Mounting position
Ambient temperature
FEN-…
8, 10
[mm] 1 … 100
[°C]
12, 16
20
1 … 200
1 … 250
FENG-…
32
25
40
50
63
80
100
1 … 500
Plain-bearing guide
Recirculating ball bearing guide
Via female thread
Any
–20 … +80 °C
Weight [g]
Type
Piston 
FEN-…
8, 10
12, 16
20
25
FENG-…
32
40
50
63
80
100
Plain-bearing guide (GF)
Basic weight with 0 mm stroke
Additional weight per 10 mm stroke
332
10
490
13
873
13
866
13
1570
17
2480
31
4190
47
5540
48
10720
70
13420
70
Recirculating ball bearing guide (KF)
Basic weight with 0 mm stroke
Additional weight per 10 mm stroke
300
11
429
14
828
14
813
14
1530
18
2370
32
4030
50
5410
49
10430
80
12990
80
Materials
Sectional view
1 2
3
4
5
Recirculating ball bearing guide
Plain-bearing guide
4
Guide unit
1
Yoke plate
2
3
4
5
–
Coupling
Guide
Bearing
Guide rods
Note on materials
è Internet: www.festo.com/catalog/...
32 … 63
80, 100
FEN/FENG-…-GF
FEN/FENG-…-KF
Aluminium
Steel
Steel
Aluminium
Sintered bronze
Steel
–
RoHS-compliant
Aluminium
Steel
Steel
Aluminium
Steel
Steel
Free of copper and PTFE
Subject to change – 2016/03
Guide units FEN/FENG for standard cylinders
Technical data
Max. working load F as a function of projection A
A = Projection
X = Distance to centre of gravity
of working load
S = Centre of gravity of working
load
 8 … 25
FEN-…-GF
FEN-…-KF
3
3
1
2
1
F [N]
F [N]
2
A + X [mm]
A + X [mm]
1  8, 10
2  12, 16
3  20, 25
 32 … 100
FENG-…-GF
FENG-…-KF
5
3
4
F [N]
F [N]
5
3
2
4
2
1
1
A + X [mm]
1  32
2  40
3  50
A + X [mm]
4  63
5  80, 100
2016/03 – Subject to change
è Internet: www.festo.com/catalog/...
5
Guide units FEN/FENG for standard cylinders
Technical data
Download CAD data è www.festo.com
Dimensions
FEN-8, 10
1 Cylinders DSN/DSNU
2 Compensating coupling for
radial and axial alignment
+

B1
[mm]
–0.3
8
10
29
26

H3
H4
B2
B3
B4
B5
1)
6
B7
B8
D1

D2
D3

D4

D5
D61)

D8

±0.15
48
H5
H1
H2
–0.4
29
KK
13
L1
[mm]
8
10
B6
= plus stroke length
21
L2
16
4.5
10
M5
10
5,5
M5
8
5.5
67
64
L4
L5
L7
L8
L9
L10
L11
L12
T1
T2
ß1
ß2
48
7
8
8
17
6
25
32
5.7
10
9
19
+2
25
42
25
M4
86
31
FENG-…-GF: Tolerance class f8
FENG-…-KF: Tolerance class h6
è Internet: www.festo.com/catalog/...
Subject to change – 2016/03
Guide units FEN/FENG for standard cylinders
Technical data
Download CAD data è www.festo.com
Dimensions
FEN-12, 16
1 Cylinders DSN/DSNU
2 Compensating coupling for
radial and axial alignment
+
D61)

= plus stroke length

B1
[mm]
–0.3
12
16
30
28
47
26
16
23
14
M5
10
5.5
M5
10
5.5
68
65
23

H4
H5
KK
L1
L2
L4
L5
L7
L8
L9
L10
L11
T1
T2
ß1
ß2
5.7
12
12
24
B2
B3
B4
±0.15
1)
B6
D1

D2
D3

D4

D5
32
M6
108
38
H1
H2
–0.4
+5
57
D8

±0.15
[mm]
12
16
B5
H3
±0.15
±0.15
60
13
10
10
15
6.5
40
FENG-…-GF: Tolerance class f8
FENG-…-KF: Tolerance class h6
2016/03 – Subject to change
è Internet: www.festo.com/catalog/...
7
Guide units FEN/FENG for standard cylinders
Technical data
Download CAD data è www.festo.com
Dimensions
FEN-20, 25
1 Cylinders DSN/DSNU
2 Compensating coupling for
radial and axial alignment
+

B1
[mm]
–0.3
20
25
34

H5
B2
B3
B4
1)
8
B6
D1

D2
D3

D4

D5
D61)

D8

32
58
KK
M8
M10x1.25
H1
H2
–0.4
H3
H4
±0.2
37
20
23
32
M6
10
5,5
M5
10
11
6.6
79
76
38
68
L1
L2
L4
L5
L6
L7
L8
L9
L10
L11
T1
T2
T3
ß1
ß2
5.7
14
6.8
13
27
+5
40
D7

±0.2
[mm]
20
25
B5
= plus stroke length
138
65
±0.2
108
17
58
15
12
22
17
8.5
32.5
FENG-…-GF: Tolerance class f8
FENG-…-KF: Tolerance class h6
è Internet: www.festo.com/catalog/...
Subject to change – 2016/03
Guide units FEN/FENG for standard cylinders
Technical data
Download CAD data è www.festo.com
Dimensions
FENG-32 … 100
1 Cylinders DNC/DSBC/DSBG
2 Compensating coupling for
radial and axial alignment
3 Users can drill additional
mounting holes along these
axes as required
+
B4
D1

D2
D3

D4

D61)

H1
H2
50.5 ±0.3
58.5 ±0.3
70.5 ±0.3
85.5 ±0.3
106 ±0.6
131 ±0.6
44
44
60
60
78
78
M6
M6
M8
M8
M10
M10
11
11
15
15
18
18
6.6
6.6
9
9
11
11
12
16
20
20
25
25
97 –0.4
115 –0.4
137 –0.5
152 –0.5
189 –0.5
213 –0.5
90
110
130
145
180
200

B1
[mm]
–0.3
32
40
50
63
80
100
50
58
70
85
105
130
45
54
63
80
100
120
74
87
104
119
148
172

L1
L2
L3
L4
L5
L6
L7
L8
L9
L11
155
170
188
220
258
263
67 +5
75 +5
89 +10
89 +10
111 +10
116 +10
94
105
106
121
128
138
125
140
150
182
215
220
24
28
34
34
40
40
76
81
79
111
128
128
4.3
11
18.8
15.3
21
24.5
12
12
15
15
20
20
20
22
25
25
32
32
B2
B3
±0.2
[mm]
32
40
50
63
80
100
1)
L12
L13
±0.2
±0.2
±0.2
32.5
38
46.5
56.5
72
89
70.3
84
81.8
105
–
–
78
–
100
–
–
–
= plus stroke length
H3
H4
±0.2
±0.2
61
69
85
100
130
150
78
84
100
105
130
150
T1
KK
M10x1.25
M12x1.25
M16x1.5
M16x1.5
M20x1.5
M20x1.5
T2
ß1
max.
6.5
6.5
9
9
11
11
14
14
16
16
20
20
15
15
19
19
27
27
FENG-…-GF: Tolerance class f8
FENG-…-KF: Tolerance class h6
2016/03 – Subject to change
è Internet: www.festo.com/catalog/...
9
Guide units FEN/FENG for standard cylinders
Technical data
Ordering data FEN-… for variable strokes
for standard cylinders DSN/DSNU
Piston 
Stroke
with plain-bearing guide
[mm]
[mm]
Part No. Type
with recirculating ball bearing guide
Part No. Type
8, 10
12, 16
20
25
35197
33481
33482
33483
1 … 100
1 … 200
2 … 250
2 … 250
35196
19168
19169
19170
FEN-8/10-…-GF
FEN-12/16-…-GF
FEN-20-…-GF
FEN-25-…-GF
FEN-8/10-…-KF
FEN-12/16-…-KF
FEN-20-…-KF
FEN-25-…-KF
Ordering data FENG-… for variable strokes
for standard cylinders DNC/DSBC/DSBG
Piston 
Stroke
with plain-bearing guide
[mm]
[mm]
Part No. Type
with recirculating ball bearing guide
Part No. Type
32
40
50
63
80
100
34487
34488
34489
34490
34491
34492
10 … 500
34481
34482
34483
34484
34485
34486
FENG-32-…-GF
FENG-40-…-GF
FENG-50-…-GF
FENG-63-…-GF
FENG-80-…-GF
FENG-100-…-GF
Ordering data FENG-…-KF with recirculating ball bearing for fixed strokes
for standard cylinders DNC/DSBC/DSBG
Piston 
Part No. Type
Part No. Type
[mm]
FENG-32-…-KF
FENG-40-…-KF
FENG-50-…-KF
FENG-63-…-KF
FENG-80-…-KF
FENG-100-…-KF
Part No.
Type
Part No.
Type
Stroke
32
40
50
63
80
100
50 mm
34493
34499
34506
34513
34521
34529
FENG-32-50-KF
FENG-40-50-KF
FENG-50-50-KF
FENG-63-50-KF
FENG-80-50-KF
FENG-100-50-KF
100 mm
34494
34500
34507
34514
34522
34530
FENG-32-100-KF
FENG-40-100-KF
FENG-50-100-KF
FENG-63-100-KF
FENG-80-100-KF
FENG-100-100-KF
160 mm
34495
34501
34508
34515
34523
34531
FENG-32-160-KF
FENG-40-160-KF
FENG-50-160-KF
FENG-63-160-KF
FENG-80-160-KF
FENG-100-160-KF
200 mm
34496
34502
34509
34516
34524
34532
FENG-32-200-KF
FENG-40-200-KF
FENG-50-200-KF
FENG-63-200-KF
FENG-80-200-KF
FENG-100-200-KF
Stroke
32
40
50
63
80
100
250 mm
150289
34503
34510
34517
34525
34533
FENG-32-250-KF
FENG-40-250-KF
FENG-50-250-KF
FENG-63-250-KF
FENG-80-250-KF
FENG-100-250-KF
320 mm
34497
34504
34511
34518
34526
34534
FENG-32-320-KF
FENG-40-320-KF
FENG-50-320-KF
FENG-63-320-KF
FENG-80-320-KF
FENG-100-320-KF
400 mm
150290
150291
150292
34519
34527
34535
FENG-32-400-KF
FENG-40-400-KF
FENG-50-400-KF
FENG-63-400-KF
FENG-80-400-KF
FENG-100-400-KF
500 mm
34498
34505
34512
34520
34528
34536
FENG-32-500-KF
FENG-40-500-KF
FENG-50-500-KF
FENG-63-500-KF
FENG-80-500-KF
FENG-100-500-KF
10
è Internet: www.festo.com/catalog/...
Subject to change – 2016/03
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Headquarters
Festo Inc.
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Festo Corporation
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+auppauge, 1<
11
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59
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Canadian Customers
Commercial Support:
Tel: 1 *O FESTO 1 3 3
Fax: 1 F; FESTO 1 393 3
Email: festocanada#cafestocom
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Fax:1 F; FESTO1 393 3
Email: technicalsupport#cafestocom
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Email: customerservice#usfestocom
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Email: productsupport#usfestocom
SubMect to change
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