Parker Prädifa Wiper A1 NBR

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The A1 Prädifa wiper ring serves to prevent the ingress of dust, dirt, sand, and swarf. This is achieved by its special design which largely prevents scoring, protects the guiding parts, and extends the service life of the seals. An oversized outer diameter ensures interference fit in the groove, thus preventing ingress of foreign particles and moisture via the static seal fit of the wiper.

The Parker Praedifa A1 wiper is available in both Ultrathan® and rubber compounds. The Ultrathan® versions are characterized by extremely high wear resistance.

  • Good wear resistance.
  • High-temperature resistance in case of suitable compound selection.
  • Excellent media resistance in case of suitable compound selection.
  • Suitable compounds are available for special requirements of the chemical process industry.
  • Suitable compounds are available for special requirements of the food processing industry.
  • Dimensions according to DIN ISO 6195, Type E.
  • Product geometry prevents dirt deposits at the front face of the cylinder.
  • Installation in closed and undercut housings.

Range of application

Axially operated rods in hydraulic and pneumatic working cylinders, plungers, and rod guidances.

Operating temperature                                    -35 °C to +100 °C

Sliding speed                                                    ≤ 2 m/s

Compounds

The standard material is an NBR-based elastomer compound with a hardness of approx. 90 Shore A.

The profile A1 (NBR) wiper ring is resistant to greases, lubricants, hydraulic oils, HFA-, HFB-, HFC-media, petrol, petroleum, water, and lyes.

Installation

The profile A1 wiper ring is supplied as a continuous ring. Any pressure on the back of the ring should be avoided. Intermediate sizes may easily be cut from the next largest ring with the same cross-section. The ring is to be cut at an angle of 90° to the new circumference length (+ 2 to 3 % in excess). Due to the excess length, the two ends will fit closely together so that no gap will occur. Gluing is not necessary. The wiper can easily be pressed into the groove and will fit perfectly tight.

d D H L a n Order code d D H L a n Order code
4 12 7 4 1 1 A10015N3587 42 50 7 4 1 1 A14015N3587
5 8 4 2.2 1 0.5 A10025N3587 44 52 7 4 1 1 A14025N3587
6 10 4 2.2 1 0.5 A10035N3587 45 53 7 4 1 1 A14030N3587
8 14 5 2.6 1 1 A10042N3587 46 54 7 4 1 1 A14040N3587
8 16 7 4 1 1 A10045N3587 47 55 7 4 1 1 A14045N3587
10 16 5 2.6 1 1 A11002N3587 48 56 7 4 1 1 A14050N3587
10 18 7 4 1 1 A11005N3587 50 58 7 4 1 1 A15005N3587
12 18 5 2.6 1 1 A11009N3587 52 60 7 4 1 1 A15020N3587
12 20 7 4 1 1 A11010N3587 54 62 7 4 1 1 A15030N3587
14 20 5 3.1 1 1 A11014N3587 55 63 7 4 1 1 A15035N3587
14 22 7 4 1 1 A11015N3587 56 64 7 4 1 1 A15040N3587
15 23 7 4 1 1 A11020N3587 57 65 7 4 1 1 A15042N3587
16 22 5 3.1 1 1 A11016N3587 58 66 7 4 1 1 A15045N3587
16 24 7 4 1 1 A11025N3587 60 68 7 4 1 1 A16005N3587
17 25 7 4 1 1 A11030N3587 60 72 10 5.5 1.5 1.5 A16010N3587
18 24 5 3.1 1 1 A11034N3587 63 71 7 4 1 1 A16020N3587
18 26 7 4 1 1 A11035N3587 65 73 7 4 1 1 A16030N3587
20 26 5 3.1 1 1 A12026N3587 66 74 7 4 1 1 A16035N3587
20 28 7 4 1 1 A12005N3587 68 76 7 4 1 1 A16045N3587
22 30 7 4 1 1 A12010N3587 70 78 7 4 1 1 A17005N3587
23 31 7 4 1 1 A12015N3587 72 80 7 4 1 1 A17015N3587
24 32 7 4 1 1 A12020N3587 73 81 7 4 1 1 A17018N3587
25 33 7 4 1 1 A12025N3587 75 83 7 4 1 1 A17025N3587
26 34 7 4 1 1 A12030N3587 78 86 7 4 1 1 A17040N3587
28 36 7 4 1 1 A12035N3587 80 88 7 4 1 1 A18002N3587
30 36 7 4 1 1 A13003N3587 82 90 7 4 1 1 A18010N3587
30 38 7 4 1 1 A13005N3587 85 93 7 4 1 1 A18025N3587
32 40 7 4 1 1 A13010N3587 86 94 7 4 1 1 A18030N3587
33 41 7 4 1 1 A13015N3587 90 98 7 4 1 1 A19005N3587
34 42 7 4 1 1 A13020N3587 92 100 7 4 1 1 A19015N3587
35 43 7 4 1 1 A13025N3587 95 103 7 4 1 1 A19030N3587
36 44 7 4 1 1 A13030N3587 97 105 7 4 1 1 A19045N3587
38 46 7 4 1 1 A13035N3587 100 108 7 4 1 1 A1A010N3587
40 48 7 4 1 1 A14005N3587 105 117 10 5.5 1.5 1.5 A1A035N3587

 

d D H L a n Order code d D H L a n Order code
106 118 10 5.5 1.5 1.5 A1A040N3587 305 320 13 6.5 2 2 A1Q015N3587
110 118 7 4 1 1 A1B005N3587 310 325 13 6.5 2 2 A1Q020N3587
110 122 10 5.5 1.5 1.5 A1B010N3587 315 330 13 6.5 2 2 A1Q025N3587
114 122 7 4 1 1 A1B028N3587 320 335 13 6.5 2 2 A1Q030N3587
115 127 10 5.5 1.5 1.5 A1B035N3587 340 355 13 6.5 2 2 A1Q035N3587
120 132 10 5.5 1.5 1.5 A1C010N3587 365 380 13 6.5 2 2 A1Q050N3587
125 137 10 5.5 1.5 1.5 A1C020N3587 400 415 13 6.5 2 2 A1R020N3587
130 142 10 5.5 1.5 1.5 A1D010N3587 450 465 13 6.5 2 2 A1R015N3587
135 147 10 5.5 1.5 1.5 A1D025N3587 500 515 13 6.5 2 2 A1S015N3587
140 152 10 5.5 1.5 1.5 A1E010N3587
145 157 10 5.5 1.5 1.5 A1E035N3587
150 162 10 5.5 1.5 1.5 A1F005N3587
152 164 10 5.5 1.5 1.5 A1F015N3587
155 167 10 5.5 1.5 1.5 A1F030N3587
160 172 10 5.5 1.5 1.5 A1G010N3587
165 177 10 5.5 1.5 1.5 A1G025N3587
166 178 10 5.5 1.5 1.5 A1G030N3587
170 182 10 5.5 1.5 1.5 A1H010N3587
175 187 10 5.5 1.5 1.5 A1H025N3587
180 192 10 5.5 1.5 1.5 A1J010N3587
185 197 10 5.5 1.5 1.5 A1J050N3587
190 202 10 5.5 1.5 1.5 A1K015N3587
195 207 10 5.5 1.5 1.5 A1K030N3587
200 212 10 5.5 1.5 1.5 A1L003N3587
210 218 7 4 1 1 A1L009N3587
210 225 13 6.5 2 2 A1L010N3587
220 235 13 6.5 2 2 A1M010N3587
230 245 13 6.5 2 2 A1M016N3587
235 250 13 6.5 2 2 A1M020N3587
240 255 13 6.5 2 2 A1N015N3587
250 265 13 6.5 2 2 A1N040N3587
260 275 13 6.5 2 2 A1O005N3587
265 280 13 6.5 2 2 A1O030N3587
300 315 13 6.5 2 2 A1Q010N3587

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