FDI-DICHTUNGEN®
FDI® - scraper
model: Y-SG
IIn case of large radial runout FDI®-scraper model YS is recommended.
The radial dynamic movement/contact will be at the top axial lip sections, which are in contact with
the housing (or cover plates).
Axial movement of the shaft is allowed at the same time.
For large axial movement model Y-SG is recommended. The radial runout is limited acc. indicated
gap C between shaft and housing. For larger runout special designs are available on request.

spring: stainless steel

model radial
runout
  mm max.
Y-SG endless Pls, see "C"5

media to be sealed: oil, grease, water, slurry, suspension with hard particles
Split version possible.

material:


 temperature

°C

min.   max.

 chemical

resistance
FDI® 1004 -40   +120 as NBR
FDI® 2004 -40   +170 as HNBR
FDI® 3004 -30   +200 as FPM
Ø range of
cross section
  
d (mm) f8 A
radial
height		 H
width
  Tol.
±		 C E min. S
< 50 11 10 0,1 2 6 5
>  50 - 100 16 12,5 0,1 3 7 6
>100 - 250 20 16 0,1 3 7 6
> 250 - 400 22 20 0,1 4 9 8
> 400 - 600 25 22 0,2 4 10 8
>600 32 25 0,2 5 11 9
Indicated sizes are dimensions of housing!

except “A” = height of profile!

To allow radial movement of the seal: A + max. 5 mm.

(according radial runout)
Running surface:
hardness min HRc
Roughness max. Ra
- axial surface Gleitflächen
- Ø shaft
30
0,4
30
0,4
  Size list:        
Ød f8 ØD (scraper) A H   Y-SG
(mm) (mm) (mm) (mm) DXF 2D STEP 3D
140
180
 20 16 -  CAD
160 200 20 16 -  CAD
170 210 20 16 - CAD
180 220 20 16 -  CAD
200 240 20 16 -  CAD
250 290 20 16 -   CAD
270 314 22 20 -   CAD
300 344 22 20 -  CAD
350 394 22 20 -   CAD
500 550 25 22 - CAD
560 610 25 22 - CAD
1000 1064 32 25/33 - CAD
1270 1416 73 28/38 - CAD
1350 1414 32 25 - CAD
1700 1764 32 25/33 - CAD
Other sizes on request.

The data shown above is based on long lasting experience in the manufacturing and use of sealing elements. As there are many unknown possible parameters and conditions in practice, which may limit standard performance, it is requested that the user runs practical tests. Except as expressly stated, Friedrich‘s liability, expressed or implied, is limited to the published selling price of our defective item.

FDI® and FDI-DICHTUNGEN® are registered trademarks of Friedrich GmbH.

© 2011/1 by FDI® - Design
006-Y-SG_e