Parker Prädifa Wiper A7

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The Parker Prädifa PDF wiper rings have an A7 profile their task is to prevent dust, dirt, grains of sand, and metal chips from entering in dynamic rod guides. This is achieved through their special shape. They

thus largely prevent the formation of lines, protect the friction parts and
extend the service life of the seals.

The A7 profile should always be used in conjunction with an elastomer wiper

The Parker Praedifa PDF scraper ring profile A7 results in cylinder a technically clean one degree. There are no special screw rings and retaining plates required. It doesn’t require tight fits or metal inserts. The possible corrosion when using a metal scraper between the metal cage and cylinder head appearance can be prevented. For the Groove, turning is not a fine fit necessary.

d D h d1 H Item number
44,5 56 1,9 55 2 A7 4055W5015
45 56 2 55 2,1 A7 4056W5015
56 67 2 66 2,1 A7 5068W5015
59,5 71 1,9 70 2 47 5090W5015
63 74 2 73 2,1 A7 6033W5015
69,5 81 1,9 80 2 47 6981W5015
70 82 2 81 2,1 A7 7082W5015
75 87 2 86 2,1 A7 7517 W5015
78 89,5 1,9 88,5 2 47 7815W5015
80 92 2 91 2,1 47 8092W5015
87 98,5 1,9 97,5 2 A7 8799W5015
90 102 2 101 2,1 47 9012W5015
97 108,5 1,9 107,5 2 A7 9708W5015
100 112 2 111 2,1 A7 A012 W5015
104 115,5 1,9 114,9 2 A7 A215 W5015
110 122 2 121 2,1 A7 B022 W5015
118 129,5 1,9 128,5 2,1 A7 B829 W5015
120 132 2 131 2 A7 C032 W5015
124 136 2 135 2,1 A7 C036 W5015
130 150 2,5 148,6 2,1 A7 D050 W5015
140 160 2,5 1 58,6 2,6 A7 E060 Ws015
150 170 2,5 168,6 2,6 A7 F070 W5015
160 180 2,5 1 78,6 2,6 A7 G080 W5015
180 200 2,5 1 98,6 2,6 A7 J020W5015
200 220 2,5 219,6 2,6 A7 1020 W501s

Scope of application:
PDF scraper ring profile A7 for axial moving rods on hydraulic, working cylinders and rod guides.
Operating temperature: -40 to + 100. C
Sliding speed wedge:=1 m / s

Installation instructions:
The PDF wiper ring profile A7 is delivered as a closed ring.
Avoid pressurization against the backing of the ring. It can be snapped into closed grooves.

Material:
The standard material is plastic
Based on polyamide (PA66).
Under special operating conditions
(Temperature, speed, etc.)
please contact our
Application Technology Department.

Order example:
PDF wiper ring profile A7 for one
Bar diameter of 80 mm.
Order number: A7 8092 W5015
80x92x2 A7: Profile designation
8082: Dimension key W5015: standard value

Merk

Parker

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