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Scraper seal A5elastomerNBRpolyurethane
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Characteristics
- Type
- scraper
- Material
- polyurethane, elastomer, NBR, FKM
- Configuration
- with circular cross section
- Application
- for hydraulic fluids, for cylindrical items
- Fluid
- oil, for mineral oil, air, for compressed air
- Other characteristics
- hydraulic, dynamic, single-acting, pneumatic
- Temperature limit
Max.: 200 °C
(392 °F)Min.: -40 °C
(-40 °F)- Shore A hardness
Max.: 95 unit
Min.: 90 unit
- Speed
Max.: 1 m/s
(3.3 ft/s)Min.: 0 m/s
(0 ft/s)
Description
Description
The Scraper A5 is a one-piece rod scraper designed with two wiping lips to remove contamination and residual oil films from piston rods. Available in NBR, FKM or polyurethane (TPU), the A5 is offered for a range of hydraulic and pneumatic environments. NBR is suitable for general hydraulic and pneumatic use, FKM provides enhanced chemical resistance, and TPU is intended for mobile hydraulics exposed to heavy contamination. The secondary sealing lip improves removal of residual oil and the additional step on the outer diameter ensures a tighter fit and improved wiping action. Material hardness ranges from 90 to 95 Shore A, depending on the selected material.
Fields of application
Main use
applications for hydraulic and pneumatic cylinders
Materials
Technical values
Materials (selectable): NBR, TPU, FKM
NBR — Temperature: -40°C / +100°C (material dependent)
TPU — Temperature: -30°C / +100°C (material dependent)
FKM — Temperature: -20°C / +200°C (material dependent)
Speed: up to 1 m/s (material dependent)
Pressure: not specified (values vary depending on material and media)
Note: Maximum values for temperature, speed and pressure are not simultaneously applicable and vary depending on material and media.
The Scraper A5 is a one-piece rod scraper designed with two wiping lips to remove contamination and residual oil films from piston rods. Available in NBR, FKM or polyurethane (TPU), the A5 is offered for a range of hydraulic and pneumatic environments. NBR is suitable for general hydraulic and pneumatic use, FKM provides enhanced chemical resistance, and TPU is intended for mobile hydraulics exposed to heavy contamination. The secondary sealing lip improves removal of residual oil and the additional step on the outer diameter ensures a tighter fit and improved wiping action. Material hardness ranges from 90 to 95 Shore A, depending on the selected material.
Fields of application
- static
- dynamic
- single-acting
- double-acting
- linear
- rotating (inactive)
- oscillating
Main use
applications for hydraulic and pneumatic cylinders
Materials
- elastomers
- polyurethane (TPU)
- NBR (nitrile rubber)
- FKM (fluoroelastomer)
Technical values
Materials (selectable): NBR, TPU, FKM
NBR — Temperature: -40°C / +100°C (material dependent)
TPU — Temperature: -30°C / +100°C (material dependent)
FKM — Temperature: -20°C / +200°C (material dependent)
Speed: up to 1 m/s (material dependent)
Pressure: not specified (values vary depending on material and media)
Note: Maximum values for temperature, speed and pressure are not simultaneously applicable and vary depending on material and media.
Catalogs
Other ULMAN Dichtungstechnik GmbH products
Dynamic Seals
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.
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