PTFE-StützringePTFE backup ringsPTFE-StützringePTFE-Stützringe
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PTFE - backup rings

Housing dimension

                       radial deformation         Groove width

O-Ring
Cord thick-
ness

ø D1
static
Groove depth


NT s
+0,05
dynamic
Groove depth


NT d
+0,05
without
Backup ring


NB
+0,2
one
Backup ring


NB1
+0,2
two
Backup rings


NB2
+0,2
Backup ring width-
ness

B
Radius
without Backup ring

R
Radius
with Backup ring

R

Angle 15°



length
1,000,700,801,40---0,20,21,20
1,50

1,10
1,201,903,103,901,000,20,21,20
1,781,401,502,403,805,101,400,40,21,20
2,001,601,702,604,005,401,400,50,21,30
2,502,002,103,004,405,601,400,50,31,30
2,622,102,253,104,505,901,400,60,31,40
3,002,402,553,605,006,401,400,80,41,80
3,502,803,104,205,607,001,401,00,41,90
3,532,803,104,205,607,001,401,00,41,90
4,003,203,504,706,408,101,701,00,42,30
4,503,704,005,206,908,601,701,00,42,40
5,004,104,406,007,709,401,701,00,42,40
5,334,404,706,207,909,601,701,20,62,60
5,504,504,806,408,109,801,701,20,62,90
5,704,605,006,708,4010,101,701,20,62,90
6,004,905,306,908,6010,301,701,20,62,90
6,995,806,208,2010,7013,202,501,50,63,40
8,006,307,009,3011,8014,302,501,50,63,50
8,406,507,509,7012,2014,702,502,00,64,00

All backup rings are supplied as standard without O-Ring. O-Ring you must order separately!

Backup rings design:

STE - uncut  •  STS - spiral  •  STG - cut

Backup rings / Ordering example:

Material

STE- 40 x 48,5 - 1,4 - P
Backup ring - uncut diameter / 40 x 48.5 x 1.4 / Material PTFE-virginal

STG- 75 x 78,5 - 1,7 - GF

Backup ring - cutted diameter / 75 x 78.5 x 1.7 / Material PTFE-Glass fibre

PTFE - virginal
PTFE - Glassfibre
PTFE - Bronze
PTFE - Carbon
Polyurethane
Polyacetal
Special material

P

GF

BR
K
PU
POM
SO

Directives

All information and values stated concerning our product portfolio are based on the knowledge optained through a long experience of manufacturing and application.
These figures are for indicative purposes only and may vary (exceed or deceed) according to the particular circumstances. Unknown factors in the applications and practice can considerably change the conditions and reduce and change statements, which may cause the above information to be invalid.
No liability can be accepted for any mistakes or omissions, error and subject to change without prior notice.

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7 August 2019                             For all certifie

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Certification in ISO 9001:2015 with S.F. Components successfully completed

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SERVICE

Backup rings

Technical information

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Backup rings PTFE

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Backup rings inch/zoll

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Backup rings metric

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