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K74

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  • Guiding Elements
  • K74
K74 - Rod Guide Ring
  • General Features
  • Technicial Specifications
   KASTAŞ NO d (f8) D (H8) b B (-0/+0,2) D1 (H9) r n
 K74-020 20 30 12,8 13 21 0,2 5
 K74-025 25 35 12,8 13 26 0,2 5
 K74-030 30 40 12,8 13 31 0,2 5
 K74-035 35 45 12,8 13 36 0,2 5
 K74-040 40 50 15,8 16 41 0,2 5
 K74-045 45 55 15,8 16 46 0,2 5
 K74-045/1 45 60 15,8 16 46 0,2 5
 K74-055 55 65 15,8 16 56,5 0,2 5,5
 K74-065 65 75 15,8 16 66,5 0,2 5,5
 K74-075 75 85 15,8 16 76,5 0,2 5,5

K74 is a guide ring designed to be used for rod applications.

PRODUCT ADVANTAGES
• Easy , snap-in fitting
• Medium load-bearing capacity
• Prevents hydrodynamic pressure due to the K interval
• Very good dimension stability during the operating temperatures
• Economical guiding solution

APPLICATION
Agricultural machinery , light to medium duty cylinders.

MATERIAL CODE
POM (Special filled) PM9902
OPERATING CONDITIONS
MEDIA Mineral oils(DIN 51524)  HFA ve HFB HFC
TEMPERATURE -30°C +125°C +5°C +50°C -30°C +40°C
CONTACT PRESSURE ≤40 N/mm2 ≤40 N/mm2 ≤40 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 ROUGHNESS Ra Rmax
Sliding Surface  Ød ≤0.40 µm ≤3.2 μm
Groove Base   ØD ≤2.5 µm ≤10 µm
Groove Flanks B ≤3.2 µm ≤16 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 guide element must be oiled with system oil.

NOTES
When designing the cylinder K74 guide ring should be placed where it has direct contact with the media. K74 is not suitable for dry working conditions. Surface contact pressure value might drop due to the temperature increase.

 
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