• |
  • |
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D d d1 D1 S1 S G G1 C
40 26 32 36 3.5 15.5 30 7.25 7
45 31 37 41 3 15.5 30 7.25 7
50 34 42 46 3 20.5 32 5.8 7
56 40 48 52 3 20.5 32 5.8 7
60 44 52 56 3 20.5 32 5.8 7
63 47 55 59 3 20.5 32 5.8 7
65 49 57 61 3 20.5 32 5.8 7
70 54 62 66 3 20.5 32 5.8 7
75 59 67 71 3 20.5 32 5.8 7
80 62 72 76 3 22.5 36 6.8 7
85 67 77 81 3 22.5 36 6.8 7
90 72 82 86 3 22.5 36 6.8 7
95 77 87 91 3 22.5 36 6.8 7
100 82 92 96 3 22.5 36 6.8 7
105 87 97 101 3 22.5 36 6.8 10
110 92 102 106 3 22.5 36 6.8 10
115 97 107 111 3 22.5 36 6.8 10
120 102 112 116 3 22.5 36 6.8 10
125 103 115 121 4 26.5 43 8.3 10
130 108 120 126 4 26.5 43 8.3 10
135 113 125 131 4 26.5 43 8.3 10
140 118 130 136 4 26.5 43 8.3 10
145 123 135 141 4 26.5 43 8.3 10
150 128 140 146 4 26.5 43 8.3 10
155 133 145 151 4 26.5 43 8.3 10
160 138 150 156 4 26.5 43 8.3 10
170 148 160 166 6 26.5 48 10.8 10
180 158 170 176 6 26.5 48 10.8 10
190 165 180 186 4.5 31.5 48 8.3 10
195 170 185 191 4.5 31.5 48 8.3 10
200 175 190 196 4.5 31.5 48 8.3 10
210 185 200 206 8 31.5 58 13.3 12
220 195 210 216 8 31.5 58 13.3 12
235 210 226 231 15 31.5 74 21.3 12
240 215 230 236 15 31.5 74 21.3 12
250 225 240 246 15 31.5 74 21.3 12
265 240 255 261 15 31.5 74 21.3 12
280 255 270 276 15 31.5 74 21.3 12
290 265 280 286 15 31.5 74 21.3 12

Technical Specifications

Description &Advantages

 

The NS-35 compact slide ring seal type GKD is used  to seal and guide pistons on double -acting hydraulic cylinders. In standard form it is suitable for use with all mineral oils. The GKD consists of 4 parts, an elastic inner ring of PUR, al slide ring of abrasion- resistant PTFE Bronze compound and two bearing rings of a pressure- resistant POM- PTFE-Bronze compound. The bearing rings make contact with the cylinder wall; there is no metallic contact between the piston and the cylinder body. The internal elastic ring energizes he slide ring to press it against the cylinder wall providing a sealing function at zero pressure. The onset of pressure compresses the elastic ring increasing the radial forces acting on the slide ring, thereby increasing the sealing effect. Like the slide ring, the two bearing rings also sit on the elastic ring. The pressure- induced compression of the nternal ring  forces the two bearing rings, and the slide ring, against the cylinder wall so that there is zero clearnace between bearing rings and cylinder wall. Even if the cylinder tube expands under pressure the seal will adapt to the radial  deformation maintaining both zero gap and the sealing function.

               

Technical Data

 

Operating Conditions

Pressure                 :  360 bar

Temperature         :  -35°C ~ + 100°C

Sliding Speed        :  ≤ 1.0 m/s

Media                    :  Hydraulic oils (Mineral oil-based)   

 

Material

Material                 :  NBR /PU+PTFE-Bronze/ Carbon/ MoS2/ Graphite + POM

Energizer               :  PU/NBR/FKM (FKM Energizer should be used when temperature is over 100 °C)

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