Claron Polyseal Single Acting Rod Seal CPU/OR

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Design:

The Claron style CPU../OR is a symmetrical profiled lip seal designed for rod sealing, manufactured in a high performance grade of Polyurethane and fitted with an NBR O-Ring. This special feature guarantees the pre-loading of the sealing lips at no load and low pressures whilst polyurethane provides outstanding abrasion and extrusion resistance.

Maximum Pressure
Max Speed Temp. Range Temp. Range
m/s -40°C to 80°C -40°C to 110°C
0.50 280 Bar 250 Bar
0.15 400 Bar 350 Bar

These range perameters are Maximum simultaneous conditions. Optimum service conditions are affected by temperature, speed, pressure, surface finish and extrusion gaps.

Refer to Appendix 1 for further information.

AU Polyurethane
DIN Hydraulic Fluid Description °C
H Mineral oil without additives 100
H-L Mineral Fluid with anti corrosion and anti ageing additives 100
H-LP Mineral oil as HL plus additives reducing wear, raising load 100
H-LPD Mineral oil as H-LP but with detergents and dispersants 100
H-V Mineral oil as H-LP plus improved viscosity temp. 100
HFA E Emulsions of mineral oil in water. Water content 80-95% 40
HFA S Synthetic oil in water. Water content 80-95% 40
HFB Emulsions of water in mineral oil. Water content 40% 40
HFC Aqueous polymer solutions. Water content 35% ns
HFD R Phosphoric acid ester based ns
HFD S Chlorinated hydrocarbon based ns
HFD T Mixtures of HFD R and HFD S ns
HEPG Polyglycol based ns
HETG Vegetable Oil based 60
HEES Fully synthetic ester based 60

Note: Clearance gap F is the maximum permissable. i.e. gap completely on one side, in the temperature range of -30°C to 80°C The use of a suitably selected Claron bearing ring will effectively reduce the clearance gap F max. to a value closer to F/2 thus increasing the pressure capability of the seal.

Housing:

For surface finish and recommended lead in chamfers refer to the illustration below. For housing dimensions and machining tolerances refer to the catalogue page of selected seal. Refer to Appendix 4 for value of tolerance symbols.

Fitting:

For the seal to function correctly, it is important that care be taken in fitting the seal within its housing. For a detailed checklist, refer to Appendix 3.

Part Number f8      H9 H10 +0.25
-0.00
Nominal Nominal Min Max.
Ød1    ØG ØD1 L1 L2 S C R1
CPU 093068/OR 17,5 23,8 7,0 6,35 3,1 2,5 0,2
CPU 118078/OR 20 30 8,0 7,0 5,0 3,5 0,3
CPU 129098/OR 25 33 6,3 5,7 4,0 3,0 0,2
CPU 129098/1OR 25 33 5,5 4,5 4,0 3,0 0,2
CPU 137098/OR 25 35 8,0 7,0 5,0 3,5 0,3
CPU 157118/1FOR 30 40 6,3 5,7 5,0 3,5 0,3
CPU 157118/OR 30 40 7,7 7,0 5,0 3,5 0,3
CPU 165133/OR 34 42 9,0 8,0 4,0 3,0 0,2
CPU 177137/OR 35 45 8,0 7,0 5,0 3,5 0,3
CPU 196157/1OR 40 50 7,7 7,0 5,0 3,5 0,3
CPU 236196/OR 50 60 8,0 7,0 5,0 3,5 0,3
CPU 255196/OR 50 65 12,5 11,4 7,5 5,0 0,4
CPU 295236/OR 60 75 12,5 11,4 7,5 5,0 0,4
CPU 314255/OR 65 80 12,5 11,4 7,5 5,0 0,4
CPU 314275/2OR 70 80 12,5 11,4 5,0 3,5 0,3
CPU 322275/OR 70 82 9,7 8,7 6,0 4,0 0,3
CPU 334275/OR 70 85 12,5 11,4 7,5 5,0 0,4
CPU 433354/OR 90 110 12,5 11,4 10,0 6,5 0,6
CPU 093068/OR 0,687 0,937 0,275 0,250 0,125 0,093 0,020
CPU 125100/OR 1,000 1,250 0,207 0,187 0,125 0,093 0,020
CPU 237175/OR 1,750 2,375 0,582 0,562 0,312 0,156 0,020
CPU 250175/OR 1,750 2,500 0,582 0,562 0,375 0,187 0,020
CPU 250187/OR 1,875 2,500 0,452 0,437 0,312 0,156 0,020
CPU 262200/OR 2,000 2,625 0,475 0,437 0,312 0,156 0,032
CPU 275200/OR 2,000 2,750 0,520 0,500 0,375 0,187 0,020
CPU 337275/OR 2,750 3,375 0,582 0,562 0,312 0,156 0,020
CPU 375300/OR 3,000 3,750 0,520 0,500 0,375 0,187 0,020
CPU 375300/1OR 3,000 3,750 0,582 0,562 0,375 0,187 0,020
CPU 412337/OR 3,375 4,125 0,687 0,625 0,375 0,187 0,020
CPU 462400/OR 4,000 4,625 0,413 0,375 0,312 0,156 0,032
CPU 600525/OR 5,250 6,000 0,413 0,375 0,375 0,187 0,020

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