The Piston Set OK profile is a bi-directional piston seal designed for heavy-duty hydraulic applications. Its durable, two-piece design installs easily onto a solid piston without the necessity of auxiliary tools. When installed into the bore, the diameter of the OK profile is compressed to close the step cut in the cap to provide excellently, drift-free sealing performance.
♥Property
Application Range
Pressure[MPa]
Temperature [℃]
Sliding speed[m/s]
Medium
Standard
50
-30..+110
0.5
Hydraulic oils (mineral oil-based)
♣Advantage
● Good dynamic and static sealing performance● Static and dynamic friction coefficient is low, wear is small● Simple groove structure● Does not crawl when starting, work smoothly● Allows for larger extrusion gaps● Safe to use in dirty media due to large extrusion gaps● Long lasting
♣Specification
Specification
Groove size
dH8/17
DH11
d1+0.1
HA+0.3
Ha+0.3
40-50-7.3
40
50
40.5
8
10
40-55-11.4
40
55
40.5
12.5
14.5
44.6-54.4-9.8
44.6
54.4
45.1
10.5
12.5
45-53-5.6
45
53
45.5
7.2
9.2
45-55-9
45
55
45.5
10
12
50-65-11.4
50
65
50.5
12.5
14.5
50.9-63.5-9.8
50.9
63.5
51.4
10.5
12.5
55-70-11.4
55
70
55.5
12.5
14.5
56-71-11.4
56
71
56.5
12.5
14.5
*60-75-11.4
60
75
60.5
12.5
14.5
63-78-11.4
63
78
63.5
12.5
14.5
*65-80-11.4
65
80
65.5
12.5
14.5
*70-85-11.4
70
85
70.5
12.5
14.5
75-90-11.4
75
90
75.5
12.5
14.5
*80-95-11.4
80
95
80.5
12.5
14.5
*85-100-11.4
85
100
85.5
12.5
14.5
*85-100-12
85
100
85.5
13
16
90-105-11.4
90
105
90.5
12.5
14.5
90-105-13
90
105
90.5
14.5
17.5
95-110-12
95
110
95.5
13
16
Specification
Groove size
dH⁸/f7
DH¹1
d1+0.1
Ha+0.3
He+0.3
100-115-12
100
115
100.5
13
16
100-120-13.5
100
120
100.6
15
18
*100-120-14.5
100
120
100.6
16
19
105-120-12
105
120
105.6
13
16
*110-130-14.5
110
130
110.6
16
19
120-140-14.5
120
140
120.6
16
19
*125-145-14.5
125
145
125.6
16
19
130-150-14.5
130
150
130.6
16
19
140-160-14.5
140
160
140
16
19
150-170-14.5
150
170
150.6
16
19
160-180-14.5
160
180
160.6
16
19
160-190-22.7
160
190
160.6
25
28
170-190-14.5
170
190
170.6
16
19
180-205-18.2
180
205
180.8
20
23
180-205-18.5
180
205
180.8
20.3
23.3
190-215-18.2
190
215
190.8
20
23
200-230-22.7
200
230
200.8
25
28
220-250-22.7
220
250
220.8
25
28
230-260-22.7
230
260
230.8
25
28
240-270-22.7
240
270
240.8
25
28
♦Catalog
The above specification is not complete. Besides, we can customize the non-standard parts for you.Please feel free to contact me if you are interested.
