Piston U-Ring P29

DESCRIPTION
Single-acting Piston U-Ring P29 with asymmetrical profile and shortened outer lip. Recommended up to 10 Mpa working pressure. An back-up ring will extended working pressure up to 16 Mpa.

Piston U-Ring P29 can be installed in “back-to-back” position in double-acting piston design with pressure on both sides. It has Very good static and dynamic tightness and is good choice for specific requirements.

APPLICATION
Light hydraulic cylinders.
Pneumatic cilinders
Earth moving equipment
Industrial vehicles
Agriculture equipment

MATERIAL

Standrad material
Material base NBR 85 NBR 85 NBR 80 FPM 85


For applications that may require alternative materials or for verification current availability of tools and part numbers, contact us.

OPERATING CONDITIONS

Pressure, Speed
Working pressure, P 10 MPa
Running speed, v 0,5 m/s
Medium, Working Temperature
Material code N4280 N5185 N7272 F9193
Hydraulic oils HL, HLP -30 to 100˚C -50 to 90˚C -60 to 80˚C -15 to +200˚C
HFA, HFB fluids +5 to +60˚C +5 to +60˚C +5 to +60˚C –
HFC fluids -30 to +60˚C -30 to +60˚C -30 to +60˚C –
HFD fluids – – – -15 to +200˚C
Water +5 to +90˚C +5 to +90˚C +5 to +80˚C –
Mineral greases -30 to +100˚C -50 to +90˚C -60 to +80˚C -15 to +200˚C

DESIGN RECOMMENDATION

Max. permissible gap dimension, emax
Max operating pressure S ≤ 7,5mm S > 7,5mm
5 Mpa 0,30 0,35
10 Mpa 0,20 0,25

 

Surface quality*
Surface roughness Ra Rmax
Sliding surfaces 0.05.. 0,3 μm ≤ 2,5 μm
Groove base ≤ 1,6 μm ≤ 6,3 μm
Groove flanks ≤ 3,0 μm ≤ 15 μm

*Contact area Mr = 50% to 90% at cutting depth c=Rz/2 and reference line Cref=0%

ØD
Ød
H
L
S
Material
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ØD
Ød
H
L
S
Ød1
C
Material
Order code
95
75
12
13
10
89
6
F9193
P29-208166
100
80
15
16
10
94
6
F9193
P29-208167
100
85
12
13
7.5
96
5.5
F9193
P29-208168
105
85
15
16
10
99
6
F9193
P29-208169
105
90
12
13
7.5
101
5.5
F9193
P29-208170
110
85
15
16
12.5
103
6.5
F9193
P29-208171
110
90
15
16
10
104
6
F9193
P29-208172
115
90
15
16
12.5
108
6.5
F9193
P29-208173
120
95
15
16
12.5
113
6.5
F9193
P29-208174
120
100
15
16
10
114
6
F9193
P29-208175
125
100
15
16
12.5
118
6.5
F9193
P29-208176
125
105
15
16
10
119
6
F9193
P29-208177
140
115
15
16
12.5
133
6.5
F9193
P29-208178
160
135
18
19
12.5
153
6.5
F9193
P29-208179
32
20
10
11
6
28
4.5
N5180
P29-208192
35
22
10
11
6.5
31
5
N5180
P29-208193
38
25
10
11
6.5
34
5
N5180
P29-208194
40
25
10
11
7.5
36
5.5
N5180
P29-208195
42
22
10
11
10
36
6
N5180
P29-208196
45
30
10
11
7.5
41
5.5
N5180
P29-208197
50
30
12
13
10
44
6
N5180
P29-208198
50
35
10
11
7.5
46
5.5
N5180
P29-208199
55
40
10
11
7.5
51
5.5
N5180
P29-208200
60
40
12
13
10
54
6
N5180
P29-208201
60
45
10
11
7.5
56
5.5
N5180
P29-208202
65
50
10
11
7.5
61
5.5
N5180
P29-208203
70
50
12
13
10
64
6
N5180
P29-208204
70
55
12
13
7.5
66
5.5
N5180
P29-208205
80
60
12
13
10
74
6
N5180
P29-208206
80
65
12
13
7.5
76
5.5
N5180
P29-208207
85
70
12
13
7.5
81
5.5
N5180
P29-208208
90
75
12
13
7.5
86
5.5
N5180
P29-208209
95
75
12
13
10
89
6
N5180
P29-208210
100
80
15
16
10
94
6
N5180
P29-208211
100
85
12
13
7.5
96
5.5
N5180
P29-208212
105
85
15
16
10
99
6
N5180
P29-208213
105
90
12
13
7.5
101
5.5
N5180
P29-208214
110
85
15
16
12.5
103
6.5
N5180
P29-208215
110
90
15
16
10
104
6
N5180
P29-208216
115
90
15
16
12.5
108
6.5
N5180
P29-208217
120
95
15
16
12.5
113
6.5
N5180
P29-208218
120
100
15
16
10
114
6
N5180
P29-208219
125
100
15
16
12.5
118
6.5
N5180
P29-208220
125
105
15
16
10
119
6
N5180
P29-208221
140
115
15
16
12.5
133
6.5
N5180
P29-208222
160
135
18
19
12.5
153
6.5
N5180
P29-208223
32
20
10
11
6
28
4.5
N7272
P29-208235
35
22
10
11
6.5
31
5
N7272
P29-208236
38
25
10
11
6.5
34
5
N7272
P29-208237
40
25
10
11
7.5
36
5.5
N7272
P29-208238
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