Professional O-Ring and Oil Seal Manufacturer, Sealing Solution Supplier Since 2008.
Product details of the hydraulic seals
Product Introduction
FOREVER SEALS hydraulic seals is built under the combination of the latest technologies. The product is totally inspected by our QC team with their dedication to high quality. hydraulic seals is manufactured under quality guarantee system.
1. Description
Back-up Rings are installed together with O-Rings and X-Rings to prevent gap extrusion in applications above 5 MPa. Available in spiral, cut or uncut designs in filled or unfilled PTFE, elastomers and thermoplastics based on ISO 3601, AS 568. A back-up ring is designed to fit between the o-ring and the extrusion gap and prevent the extrusion of the o-ring. Depending upon the direction of pressure in the sealing application, you can either use one backup ring or two backup rings. If unsure, it is always best to use two backup rings per one o-ring.
2. Sectional Drawing
3. Back-Up Ring Design Reference
Size |
Tolerance in mm |
|||||||
From |
To |
W. |
TOL.± |
T.(REF.) |
TOL.± |
A. |
TOL.± |
R |
-4 |
-50 |
1.35 |
0.08 |
1.2 |
0.08 |
1.14 |
0.08 |
2.21 |
-102 |
-178 |
2.18 |
0.08 |
1.28 |
0.08 |
1.14 |
0.08 |
3.28 |
-201 |
-284 |
3 |
0.1 |
1.23 |
0.08 |
1.02 |
0.08 |
4.42 |
-309 |
-395 |
4.65 |
0.13 |
1.88 |
0.1 |
1.52 |
0.1 |
6.65 |
-425 |
-475 |
5.99 |
0.15 |
2.97 |
0.13 |
2.44 |
0.13 |
8.74 |
4. Back-Up Ring Standard Size
Back-Up Ring SIZE
MEASUREMENTS IN MILLIMETERS
ID
NBR ±
FKM ±
W
±
T
±
A
±
R
±
R0004
2.44
0.13
+0.13/-0.13
1.35
0.08
1.2
0.08
1.14
0.08
2.21
0.25
R0005
3.23
0.13
+0.13/-0.14
1.35
0.08
1.2
0.08
1.14
0.08
2.21
0.25
R0006
3.56
0.13
+0.13/-0.14
1.35
0.08
1.2
0.08
1.14
0.08
2.21
0.25
R0007
4.34
0.13
+0.13/-0.14
1.35
0.08
1.2
0.08
1.14
0.08
2.21
0.25
R0008
5.13
0.13
+0.13/-0.14
1.35
0.08
1.2
0.08
1.14
0.08
2.21
0.25
R0009
5.94
0.13
+0.13/-0.14
1.35
0.08
1.2
0.08
1.14
0.08
2.21
0.25
R0010
6.73
0.13
+0.13/-0.15
1.35
0.08
1.2
0.08
1.14
0.08
2.21
0.25
R0011
8.31
0.13
+0.13/-0.15
1.35
0.08
1.2
0.08
1.14
0.08
2.21
0.25
R0012
9.91
0.13
+0.13/-0.16
1.35
0.08
1.2
0.08
1.14
0.08
2.21
0.25
R0013
11.56
0.13
+0.13/-0.16
1.35
0.08
1.2
0.08
1.14
0.08
2.21
0.25
R0014
13.16
0.13
+0.13/-0.17
1.35
0.08
1.2
0.08
1.14
0.08
2.21
0.25
About more sizes, you can check the attachment or contact us.
sales@foreverseals.com
Company Advantage
• Established in our company has now become a modern enterprise through years of wind and rain. We have expanded our business range and improved the brand recognition.
• The superior location and traffic convenience lay a good foundation for FOREVER SEALS's development.
• It is a long way to go for our enterprise to develop. Our own brand image is related to whether we are capable of providing customers with quality services. Thus, we proactively integrate peer advanced service concept and the advantages of our services. To satisfy different needs of consumers, we are sticking to provide consumers with diverse services including pre-sales, sales, after-sales service.
• Our company has a highly skilled research team. Moreover, we actively cooperate with many well-known domestic research institutions and recruit professional experts in industry as technical consultants. Guided by the market, we are moving towards the innovative development path combining production, education and research.
• Our sales terminals form a sales network throughout the domestic and international markets. It helps us to constantly set a good sales record at home and abroad.
If you have any questions, feel free to consult us.