K 73 is a piston - rod guide ring designed to be used in heavy duty hydraulic and pneumatic systems.

PRODUCT ADVANTAGES
• High load bearing capacity
• Minimum static and dynamic friction coefficient for a minimum energy loss and operating temperature
• Able to be used behind the sealing element on dry condition
• High dimension stability during the operating temperatures
• Easy assembly
• Wide range of dimensions

APPLICATION
Mobile hydraulics , excavators , mining equipment , marine hydraulics , presses and heavy duty cylinders.

MATERIAL

CODE

POLYESTER RESIN

PR6501

OPERATING CONDITIONS

MEDIA

Mineral oils(DIN 51524) 

HFA ve HFB

HFC

TEMPERATURE

-40°C +120°C

+5°C +60°C

-40°C +40°C

DYNAMIC CONTACTPRESSURE

≤100 N/mm2

≤100 N/mm2

≤100 N/mm2

SPEED

≤1.0 m/sn

≤1.0 m/sn

≤1.0 m/sn

Note: The above data are maximum values and cannot be used at the same time. Surface contact pressure value is given for dynamic application and it is 330 N/mm2 for static applications .

    

 

SURFACE ROUGHNESS

Ra

Rmax

Sliding Surface  ØD-Ød

≤0.4 µm

≤3.2 μm

Groove Base  ØDb-Ødp

≤1.6 µm

≤10 µm

Groove Flanks  B

≤3.2 µm

≤14 µm

INSTALLATION
Easily assembled into the housing by hand. It is very important that the assembly tools must be of soft material and have no sharp edges. Before installation the wiper must be oiled with system oil.

NOTES
To avoid hydrodynamic pressure k interval is given.