Datasheet

© Freudenberg Simrit GmbH & Co. KG | Technical Manual 2007 567
Technical Principles | O-Rings and Static Seals
160
140
120
100
80
60
40
20
1
23
4
56
7
8
9
1
0
10
%
20
%
7
2
N
B
R
8
7
2
8
0
N
B
R
7
8
1
8
8
N
B
R
1
5
6
7
2
N
B
R
8
7
2
8
0
N
B
R
7
8
1
9
0
A
U
5
1
6
/
3
8
8 N
B
R
1
5
6
9
0
A
U
5
1
6
/
3
Cross-section compression
N per cm
Compression force at the O-ring circumference
Ring thickness d
2
[mm]
Diagram 4 Necessary force of pressure at 10% and 20% cross-sectional shape change under pressure
Notes on disposal
Rubber parts or remains can be disposed of, in line with
local regulations and disposal procedures, at a waste
disposal facility or burned in a suitable plant.
Name of waste: Rubber waste, Key No. 57501.
Measurement methods
A conical test mandrel (taper 1:10 DIN 254) is used
to measure the ring-inside diameter d
1
. A scale is
engraved on the surface shell, the increments of which
correspond to a diameter variance of 0,1 mm. Meas-
urement of the ring thickness d
2
is performed with a
calliper. The increments on the dial gauge correspond
to 0,01 mm. The contact pressure between the plate-
shaped calliper surfaces has a size of 1 N.
1
2
3
4
5
6
7
8
9
10
15
14
13
12
11
10
9
8
7
6
5
4
Fig. 12