K21-018 PU
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N 18 X 28 X 8 AU,

K21-018 PU

UPC: 48652849

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K21 U-Cup
Polyurethane 92 Shore A

K21 (Piston and Rod Seals)

Used widely in hydraulic cylinders, the K21 can be used for both piston and rod applications due to its symmetrical properties. Offered in either Polyurethane 92 Shore A (designated AU), or Natural Rubber (NBR) 90 Shore A.

Application:

  • Hydraulic cylinders


Operating Conditions:

Maximum Speed: 0.5 m/s

Temperature: -30°C to 100°C (-22°F to 212°F) AU, -30°C to 105°C (-22°F to 221°F) NBR

Maximum Pressure: 400 bar – AU, 150 bar – NBR


Compatible With:

  • Mineral oils

  • Hydraulic fluids