Rod Compact Seal R21

DESCRIPTION

Rod compact Seal R21 has a symmetrical profile and a supporting edge on the sliding side. Suitable for radially restricted housings, and it is designed for sealing rods in accordance with ISO5597 standardized housings. Compact seal R21 shows very good static and dynamic tightness

APPLICATION
Standard hydraulic cylinders.
Truck tail lift
Telescopic cilinders
Agriculture equipment
Construction machinery
Forklift truck

MATERIAL

Standard material
Material Code U5002
Material Base Polyurethane, 94 ShoreA
Color Dark blue

Advantages of U502
High mechanical properties
High wear resistance
Good media resistance

OPERATING CONDITIONS

Pressure, Speed
Working pressure, P 40 MPa
Running speed, v Up to 0,5 m/s

Medium, Working Temperature
Material Code U5002
Hydraulic oils: HL, HLP -30.. +110 ˚C
HFA, HFB fluids +5 … +60 oC
HFC fluids -30 … +40 °C
Water +5 … +50 oC
Mineral greases -30 … +110 °C

DESIGN RECOMMENDATION

Max. permissible gap dimension, emax
Max operating pressure
 S ≤ 4mm S > 4mm
16 Mpa 0,40 0,50
26 Mpa 0,35 0,40
32 Mpa 0,30 0,35
40 Mpa 0,25 0,30
Surface quality*
Surface roughness Ra Rmax
Sliding surfaces 0.05 .. 0,3μm ≤ 2,5 μm
Groove base ≤ 2 μm ≤ 10 μm
Groove flanks ≤ 3 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
10
18
5.8
6.3
4
3.5
U5002
R21-012001
10
20
7
8
5
4
U5002
R21-012002
12
20
5.8
6.3
4
3.5
U5002
R21-012003
12
22
7
8
5
4
U5002
R21-012004
14
22
5.8
6.3
4
3.5
U5002
R21-012005
14
24
7
8
5
4
U5002
R21-012006
16
24
5.8
6.3
4
3.5
U5002
R21-012007
16
26
7
8
5
4
U5002
R21-012008
18
26
5.8
6.3
4
3.5
U5002
R21-012009
18
28
7
8
5
4
U5002
R21-012010
20
28
5.8
6.3
4
3.5
U5002
R21-012011
20
30
7
8
5
4
U5002
R21-012012
22
30
5.8
6.3
4
3.5
U5002
R21-012013
22
32
7
8
5
4
U5002
R21-012014
24
32
5.8
6.3
4
3.5
U5002
R21-012015
25
33
5.8
6.3
4
3.5
U5002
R21-012016
25
35
7
8
5
4
U5002
R21-012017
28
36
5.8
6.3
4
3.5
U5002
R21-012018
28
38
5.8
6.3
4
4
U5002
R21-012019
28
38
7
8
5
4
U5002
R21-012020
32
42
5.8
6.3
5
4
U5002
R21-012021
32
42
7
8
5
4
U5002
R21-012022
36
44
5.8
6.3
4
3.5
U5002
R21-012023
36
46
5.8
6.3
5
4
U5002
R21-012024
36
46
7
8
5
4
U5002
R21-012025
40
50
5.8
6.3
5
4
U5002
R21-012026
40
50
7
8
5
4
U5002
R21-012027
45
53
5.8
6.3
4
3.5
U5002
R21-012028
45
55
5.8
6.3
5
4
U5002
R21-012029
45
55
7
8
5
4
U5002
R21-012030
50
60
5.8
6.3
5
4
U5002
R21-012031
50
60
7
8
5
4
U5002
R21-012032
50
60
10
11
5
4
U5002
R21-012044
56
66
7
8
5
4
U5002
R21-012033
60
68
8
9
4
3.5
U5002
R21-012034
60
70
7
8
5
4
U5002
R21-012035
63
71
8
9
4
3.5
U5002
R21-012036
70
78
8
9
4
3.5
U5002
R21-012037
75
83
8
9
4
3.5
U5002
R21-012038
78
86
8
9
4
3.5
U5002
R21-012039
80
88
8
9
4
3.5
U5002
R21-012040
80
90
10
11
5
4
U5002
R21-012041
90
98
8
9
4
3.5
U5002
R21-012042
100
108
8
9
4
3.5
U5002
R21-012043