Rod U-Ring Set R16

DESCRIPTION

The Rod U-Seal set R16 has an asymmetric profile with a shortened inner lip and fabric reinforcement on the contact surface.

APPLICATION
Iron and steel engineering
Special hydraulic cylinders.
Presses
Steel hydraulics
Scrap cutters
Injection molding machines
Industrial wehicles
Mobile hydraulics

MATERIAL

Standard material
Material Set Code SN218 SF266
Material base NBR 80 Shore A FPM 80 Shore A
Fabric Cotton Cotton
Back-up ring Acetal resine (POM) PTFE compound

Advantages of the material:
For very low temperature applications up to -60 C, or excellent medium-rubber compatybility in special applications a few materials are recommended and available on request

OPERATING CONDITIONS

Pressure, Speed
Working pressure, p 40 Mpa
Running speed v 0,5 m/s
Medium, Working Temperature
Material Set Code SN218 SF266
Hydraulic oils: HL, HLP -30.. +100 ˚C -15.. +150 ˚C
HFA, HFB fluids +5..+60 °C –
HFC fluids -30..+60 °C –
HFD fluids – -15.. +150 ˚C
Water +5..+100 °C –
Mineral greases -30..+100°C -15.. +150 ˚C

DESIGN RECOMMENDATION

Max. permissible gap dimension, emax
Max  pressure
 ØD ≤ 80 ØD > 80
16 Mpa 0,60 0,65
26 Mpa 0,50 0,55
32 Mpa 0,45 0,45
40 Mpa 0,35 0,40
Surface quality*
Surface roughness Ra Rmax
Sliding surfaces, a 0,05 .. 0,3μm ≤ 2,5 μm
Groove base, b ≤ 1,6 μm ≤ 6,3 μm
Groove flanks, d ≤ 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
C
Material
Order code
30
45
10
11
7.5
5.5
SN218
R16-203001
32
47
10
11
7.5
5.5
SN218
R16-203002
35
50
10
11
7.5
5.5
SN218
R16-203003
36
51
10
11
7.5
5.5
SN218
R16-203004
40
55
10
11
7.5
5.5
SN218
R16-203005
45
60
10
11
7.5
5.5
SN218
R16-203006
50
65
10
11
7.5
5.5
SN218
R16-203007
60
75
10
11
7.5
5.5
SN218
R16-203008
60
80
12
13
10
6
SN218
R16-203009
63
78
10
11
7.5
5.5
SN218
R16-203010
65
85
12
13
10
6
SN218
R16-203011
70
85
10
11
7.5
5.5
SN218
R16-203012
70
90
12
13
10
6
SN218
R16-203013
75
90
10
11
7.5
5.5
SN218
R16-203014
80
95
10
11
7.5
5.5
SN218
R16-203015
80
100
12
13
10
6
SN218
R16-203016
80
105
15
16
12.5
6.5
SN218
R16-203017
90
110
15
16
10
6
SN218
R16-203018
90
115
15
16
12.5
6.5
SN218
R16-203019
100
120
12
13
10
6
SN218
R16-203020
100
125
15
16
12.5
6.5
SN218
R16-203021
110
130
12
13
10
6
SN218
R16-203022
115
140
15
16
12.5
6.5
SN218
R16-203023
125
150
15
16
12.5
6.5
SN218
R16-203024
140
160
12
13
10
6
SN218
R16-203025
140
165
15
16
12.5
6.5
SN218
R16-203026
150
180
18
19
15
7.50
SN218
R16-203027
160
185
15
16
12.5
6.5
SN218
R16-203028
170
200
18
19
15
7.50
SN218
R16-203029
180
205
15
16
12.5
6.5
SN218
R16-203030
200
225
15
16
12.5
6.5
SN218
R16-203031
220
250
18
19
15
7.50
SN218
R16-203032
30
45
10
11
7.5
5.5
SF266
R16-203033
32
47
10
11
7.5
5.5
SF266
R16-203034
35
50
10
11
7.5
5.5
SF266
R16-203035
36
51
10
11
7.5
5.5
SF266
R16-203036
40
55
10
11
7.5
5.5
SF266
R16-203037
45
60
10
11
7.5
5.5
SF266
R16-203038
50
65
10
11
7.5
5.5
SF266
R16-203039
60
75
10
11
7.5
5.5
SF266
R16-203040
60
80
12
13
10
6
SF266
R16-203041
63
78
10
11
7.5
5.5
SF266
R16-203042
65
85
12
13
10
6
SF266
R16-203043
70
85
10
11
7.5
5.5
SF266
R16-203044
70
90
12
13
10
6
SF266
R16-203045
75
90
10
11
7.5
5.5
SF266
R16-203046
80
95
10
11
7.5
5.5
SF266
R16-203047
80
100
12
13
10
6
SF266
R16-203048
80
105
15
16
12.5
6.5
SF266
R16-203049
90
110
15
16
10
6
SF266
R16-203050
12
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