Standard Material
Face seal: Polyurethane (TPU)
Elastomer: Nitrile rubber NBR
Product Introduction
JB-11 is a double-acting compact piston seal with low friction, comprised of a tough, wear-resistant thermoplastic elastomer face seal which is pre-loaded by a NBR O-ring. The cavity between the two external seal edges keeps a small quantity of fluid which reduces friction and wear.
Characteristics
- Low friction
- High wear resistance
- Good hydraulic fluids compatibility
- Excellent positon holding characteristics under load
- Can also work in single-acting
Application Suggestion
It is recommended to use JB-11 in light and medium duty applications, such as machine tool, forklift, agricultural machinery, etc.
Operating Condition
Speed | Pressure | Temperature | Media | Supplied Diameter |
0.5m/s | 0-30Mpa | -40℃~110℃ | Mineral hydraulic fluid, hydraulic oil, etc. | 12mm-400mm |
Technical Drawing
Housing Size
d1 h9 | L1+0.2 | r1 | S max | d2 |
DN-4.9 | 2.2 | 0.4 | 0.20 | 1.78 |
DN-7.5 | 3.2 | 0.6 | 0.25 | 2.62 |
DN-11.0 | 4.2 | 1.0 | 0.25 | 3.53 |
DN-15.5 | 6.3 | 1.3 | 0.30 | 5.33 |
DN-21.0 | 8.1 | 1.8 | 0.30 | 7.00 |
Specification List
DN H9 | d1 h9 | L1 +0.2 | DN H9 | d1 h9 | L1 +0.2 | DN H9 | d1 h9 | L1 +0.2 | ||
12 | 7.1 | 2.2 | 54 | 43 | 4.2 | 115 | 99.5 | 6.3 | ||
12 | 4.5 | 3.2 | 55 | 44 | 4.2 | 115 | 94 | 8.1 | ||
15 | 7.5 | 3.2 | 55 | 39.5 | 6.3 | 118 | 102.5 | 6.3 | ||
16 | 8.5 | 3.2 | 56 | 45 | 4.2 | 120 | 104.5 | 6.3 | ||
20 | 12.5 | 3.2 | 57 | 46 | 4.2 | 125 | 109.5 | 6.3 | ||
22 | 14.5 | 3.2 | 60 | 44.5 | 6.3 | 125 | 104 | 8.1 | ||
24 | 16.5 | 3.2 | 60 | 49 | 4.2 | 127 | 111.5 | 6.3 | ||
25 | 17.5 | 3.2 | 63 | 52 | 4.2 | 130 | 114.5 | 6.3 | ||
25 | 14 | 4.2 | 63 | 47.5 | 6.3 | 130 | 109 | 8.1 | ||
28 | 20.5 | 3.2 | 63.5 | 52.5 | 4.2 | 135 | 119.5 | 6.3 | ||
30 | 22.5 | 3.2 | 65 | 54 | 4.2 | 135 | 114 | 8.1 | ||
32 | 24.5 | 3.2 | 65 | 49.5 | 6.3 | 140 | 119 | 8.1 | ||
32 | 21 | 4.2 | 70 | 59 | 4.2 | 145 | 124 | 8.1 | ||
34 | 26.5 | 3.2 | 70 | 54.5 | 6.3 | 150 | 129 | 8.1 | ||
35 | 27.5 | 3.2 | 72 | 61 | 4.2 | 152.4 | 131.4 | 8.1 | ||
35 | 24 | 4.2 | 74 | 58.5 | 6.3 | 160 | 139 | 8.1 | ||
36 | 28.5 | 3.2 | 75 | 64 | 4.2 | 170 | 149 | 8.1 | ||
36 | 25 | 4.2 | 75 | 59.5 | 6.3 | 177.8 | 156.8 | 8.1 | ||
38 | 30.5 | 3.2 | 76.2 | 65.2 | 4.2 | 180 | 159 | 8.1 | ||
40 | 29 | 4.2 | 80 | 69 | 4.2 | 185 | 164 | 8.1 | ||
40 | 24.5 | 6.3 | 80 | 64.5 | 6.3 | 190 | 169 | 8.1 | ||
42 | 31 | 4.2 | 82.55 | 67.05 | 6.3 | 200 | 179 | 8.1 | ||
45 | 29.5 | 6.3 | 85 | 69.5 | 6.3 | 203.2 | 182.2 | 8.1 | ||
45 | 34 | 4.2 | 88.9 | 73.4 | 6.3 | 210 | 189 | 8.1 | ||
48 | 37 | 4.2 | 90 | 74.5 | 6.3 | 220 | 199 | 8.1 | ||
49 | 38 | 4.2 | 95 | 79.5 | 6.3 | 230 | 209 | 8.1 | ||
50 | 34.5 | 6.3 | 100 | 84.5 | 6.3 | 240 | 219 | 8.1 | ||
50 | 39 | 4.2 | 101.6 | 86.1 | 6.3 | 250 | 229 | 8.1 | ||
50.8 | 39.8 | 4.2 | 105 | 89.5 | 6.3 | 280 | 259 | 8.1 | ||
52 | 36.5 | 6.3 | 110 | 94.5 | 6.3 | 300 | 279 | 8.1 |
l Custom size acceptable, pls contact us for further discussion.
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