Hydraulic cylinder PTFE wear ring
Wear rings are used to help keep the piston centered, allowing for even wear and pressure distribution on the seals. Wear rings are used in both piston and rod applications.
Popular materials include glass filled Nylon, , phenolic fabric, bronze filled PTFE and glass filled PTFE. Wear rings are available in butt cut, angle cut and step cut styles.
|
Advantages:
1. High wear resistance
2. Low friction
3. Reduce vibration
4. Compatible with virtually all fluid media
5. Flexible and easy to assemble
6. Low maintenance cost.
|
Working Conditions
|
Working Temperature
|
Working Speed
|
Material
|
-100℃ to +200℃
|
≤5m/s
|
Phenolic Resin
Phenolic Resin + Fabric
|
Size:
Diameter: φ10-φ500mm
Dimension can be customized
|
|
NO.
|
Nominal size and cavity size of wear ring
|
|
d
|
D
|
h
|
t
|
H
|
|
WR 18
|
14
|
18
|
8
|
2
|
8
|
|
19.2
|
15.2
|
19.2
|
|
20
|
16
|
20
|
|
22
|
18
|
22
|
|
24
|
20
|
24
|
|
25
|
21
|
25
|
|
26
|
22
|
26
|
|
28
|
24
|
28
|
|
30
|
26
|
30
|
|
31
|
27
|
31
|
|
31.5
|
27.5
|
31.5
|
|
33
|
29
|
33
|
10
|
10
|
|
35
|
31
|
35
|
|
35.4
|
31.4
|
35.4
|
|
35.5
|
31.5
|
35.5
|
|
38
|
34
|
38
|
|
40
|
36
|
40
|
|
41
|
37
|
41
|
15
|
15
|
|
43
|
38
|
43
|
2.5
|
|
44.5
|
39.5
|
44.5
|
|
45
|
40
|
45
|
|
50
|
45
|
50
|
|
51.5
|
46.5
|
51.5
|
|
55
|
50
|
55
|
|
56
|
51
|
56
|
|
60
|
55
|
60
|
|
61
|
56
|
61
|
|
63
|
58
|
63
|
|
65
|
60
|
65
|
20
|
20
|
|
66
|
61
|
66
|
|
69
|
64
|
69
|
|
70
|
65
|
70
|
|
71
|
66
|
71
|
|
75
|
70
|
75
|
|
76
|
71
|
76
|
|
80
|
75
|
80
|
|
85
|
79
|
85
|
25
|
3
|
25
|
|
90
|
84
|
90
|
|
95
|
89
|
95
|
|
100
|
94
|
100
|
|
105
|
99
|
105
|
|
110
|
104
|
110
|
|
112
|
106
|
112
|
30
|
30
|
|
115
|
109
|
115
|
|
120
|
114
|
120
|
|
125
|
119
|
125
|
|
130
|
123
|
130
|
3.5
|
|
132
|
125
|
132
|
35
|
35
|
|
140
|
133
|
140
|
|
150
|
143
|
150
|
|
157
|
150
|
157
|
40
|
40
|
|
160
|
153
|
160
|
|
165
|
157
|
165
|
45
|
4
|
45
|
|
170
|
162
|
170
|
|
180
|
172
|
180
|
|
185
|
177
|
185
|
|
190
|
182
|
190
|
|
200
|
192
|
200
|
|
205
|
197
|
205
|
50
|
50
|
|
210
|
202
|
210
|
|
220
|
212
|
220
|
|
224
|
216
|
224
|
|
225
|
217
|
225
|
|
230
|
222
|
230
|
55
|
55
|
|
240
|
232
|
240
|
|
250
|
242
|
250
|
|
260
|
252
|
260
|
60
|
60
|
|
270
|
262
|
270
|
|
275
|
267
|
275
|
|
290
|
282
|
290
|
70
|
70
|
|
297
|
289
|
297
|
|
300
|
292
|
300
|
|
312
|
304
|
312
|
|
332
|
324
|
332
|
Wear Ring (Seals for SPG and SPGW)
|
NO.
|
Nominal size and cavity size of wear ring
|
|
d
|
D
|
h
|
t
|
H
|
|
30W
|
26
|
30
|
8
|
2
|
8
|
|
31.5W
|
27.5
|
31.5
|
|
32W
|
28
|
32
|
|
35W
|
31
|
35
|
|
35.5W
|
31.5
|
35.5
|
|
40W
|
36
|
40
|
|
45W
|
40
|
45
|
2.5
|
|
50W
|
45
|
50
|
|
55W
|
50
|
55
|
|
56W
|
51
|
56
|
|
60W
|
55
|
60
|
|
63W
|
58
|
63
|
|
65W
|
60
|
65
|
10
|
10
|
|
69W
|
64
|
69
|
|
70W
|
65
|
70
|
|
71W
|
66
|
71
|
|
75W
|
70
|
75
|
|
80W
|
75
|
80
|
|
85W
|
79
|
85
|
15
|
3
|
15
|
|
90W
|
84
|
90
|
|
95W
|
89
|
95
|
|
100W
|
94
|
100
|
|
108W
|
102
|
108
|
|
110W
|
104
|
110
|
|
112W
|
106
|
112
|
|
120W
|
114
|
120
|
|
125W
|
119
|
125
|
|
130W
|
123
|
130
|
3.5
|
|
140W
|
133
|
140
|
20
|
20
|
|
150W
|
143
|
150
|
|
160W
|
153
|
160
|
|
170W
|
162
|
170
|
25
|
4
|
25
|
|
180W
|
172
|
180
|
|
190W
|
182
|
190
|
|
200W
|
192
|
200
|
|
204W
|
196
|
204
|
|
210W
|
202
|
210
|
|
224W
|
216
|
224
|
|
225W
|
217
|
225
|
|
230W
|
222
|
230
|
30
|
30
|
|
240W
|
232
|
240
|
|
250W
|
242
|
250
|
