Products Description
Material: PTFE + bronze powder + other fillers
Advantages:
● High wear resistance
● Good chemical corrosion resistance
● Wide application
● Ensuring a longer service life
PTFE bronze filled back-up rings are an important component in ensuring efficient sealing in various applications. These rings are designed to act as a support for the primary sealing element, such as an O-ring, and help prevent extrusion and deformation of the elastomeric material.
PTFE bronze filled back-up rings can resist extrusion, even in high-pressure environments. This makes them a reliable and durable choice for use in static applications where the sealing element is subject to constant pressure on one side.
Moreover, these back-up rings are made from high-quality materials that are resistant to wear and tear, ensuring a longer service life. They are also easy to install and can be used in a wide range of applications across different industries.
The Back-up Ring plays a crucial role in ensuring a secure and tight sealing in various pressure applications. Thanks to its tight fit in the housing, it effectively prevents any extrusion of the elastomeric sealing element into the sealing gap, ensuring a reliable performance.
The Back-up Rings also can help to prolong the life of the sealing system by providing extra support and protection against high pressure and wear and tear. By preventing any deformation of the sealing element, it ensures a smooth and effective sealing process, without any leaks or disruptions.
PTFE bronze filled back-up rings serve an essential role in ensuring effective sealing in various applications. They are a reliable and durable choice for supporting elastomeric sealing elements and are crucial in preventing extrusion and deformation.
Production process:


Typical Application
● Excavators
● Forklifts and handing machinery
● Agriculture equipment
● Machine tools
● Presses

Our service and advantage
● We can produce many sizes
● Fast delivery
● Strict quality control system
● Factory direct prices

Our exhibition
PTC, BAUMA, Hannover Messe etc.

|
ID |
OD |
Thickness |
|
ID |
OD |
Thickness |
|
ID |
OD |
Thickness |
|
8 |
18 |
2 |
|
63 |
73 |
3 |
|
204 |
224 |
4 |
|
10 |
20 |
2 |
|
64 |
80 |
3 |
|
205 |
220 |
4 |
|
14 |
24 |
2 |
|
65 |
75 |
3 |
|
210 |
230 |
4 |
|
15 |
28 |
2 |
|
67 |
77 |
3 |
|
220 |
240 |
4 |
|
16 |
26 |
2 |
|
70 |
80 |
3 |
|
225 |
245 |
4 |
|
18 |
26 |
2 |
|
70 |
90 |
3 |
|
225 |
250 |
4 |
|
18 |
31 |
2 |
|
71 |
80 |
3 |
|
230 |
250 |
4 |
|
20 |
28 |
2 |
|
71 |
81 |
3 |
|
240 |
260 |
4 |
|
20 |
30 |
2 |
|
75 |
95 |
3 |
|
250 |
270 |
4 |
|
20 |
33 |
2 |
|
80 |
90 |
3 |
|
250 |
275 |
4 |
|
22 |
35 |
2 |
|
80 |
100 |
3 |
|
255 |
280 |
4 |
|
23.5 |
31.5 |
2 |
|
85 |
100 |
3 |
|
260 |
285 |
4 |
|
25 |
35 |
2 |
|
85 |
105 |
3 |
|
265 |
290 |
4 |
|
25 |
38 |
2 |
|
90 |
105 |
3 |
|
265 |
297 |
4 |
|
27 |
40 |
2 |
|
90 |
110 |
3 |
|
270 |
295 |
4 |
|
28 |
35.5 |
2 |
|
95 |
110 |
3 |
|
270 |
300 |
4 |
|
28 |
40 |
3 |
|
95 |
115 |
3 |
|
275 |
300 |
4 |
|
28 |
41 |
3 |
|
98 |
112 |
3 |
|
280 |
305 |
4 |
|
30 |
40 |
3 |
|
100 |
115 |
3 |
|
280 |
312 |
4 |
|
30 |
43 |
3 |
|
100 |
120 |
3 |
|
290 |
315 |
4 |
|
31.5 |
41.5 |
3 |
|
105 |
125 |
3 |
|
300 |
325 |
4 |
|
31.5 |
44.5 |
3 |
|
106 |
120 |
3 |
|
300 |
332 |
4 |
|
34 |
50 |
3 |
|
112 |
125 |
3 |
|
175 |
190 |
4 |
|
35 |
45 |
3 |
|
112 |
132 |
3 |
|
175 |
200 |
4 |
|
35.5 |
45 |
3 |
|
120 |
140 |
3 |
|
180 |
200 |
4 |
|
40 |
51.5 |
3 |
|
125 |
140 |
3 |
|
180 |
205 |
4 |
|
40 |
50 |
3 |
|
125 |
150 |
3 |
|
190 |
200 |
4 |
|
45 |
56 |
3 |
|
135 |
160 |
3 |
|
190 |
210 |
4 |
|
45 |
55 |
3 |
|
136 |
150 |
3 |
|
200 |
220 |
4 |
|
45 |
56 |
3 |
|
140 |
165 |
3 |
|
|
|
|
|
47 |
61 |
3 |
|
145 |
160 |
3 |
|
|
|
|
|
47 |
63 |
3 |
|
145 |
170 |
3 |
|
|
|
|
|
50 |
60 |
3 |
|
150 |
165 |
3 |
|
|
|
|
|
50 |
66 |
3 |
|
155 |
170 |
3 |
|
|
|
|
|
53 |
63 |
3 |
|
155 |
180 |
4 |
|
|
|
|
|
55 |
65 |
3 |
|
160 |
175 |
4 |
|
|
|
|
|
55 |
71 |
3 |
|
160 |
185 |
4 |
|
|
|
|
|
56 |
66 |
3 |
|
165 |
180 |
4 |
|
|
|
|
|
60 |
70 |
3 |
|
170 |
180 |
4 |
|
|
|
|
|
60 |
71 |
3 |
|
170 |
200 |
4 |
|
|
|
|
|
60 |
76 |
3 |
|
200 |
225 |
4 |
|
|
|
|
Packing & Delivery
Thermal shrinkage film

By Express (FedEx, UPS, DHL, TNT, EMS, etc. )
--- Advantage: Fast (takes about 7 - 10 days in the delivery), door to door
This is especially useful for urgent shipments that need to reach their destination quickly. Though express delivery is a little expensive, it is worth the cost if time is a crucial factor.

By Air Transportation
--- Advantage: Fast (takes about 8 - 12 days), a little cheaper than Express.
Though it takes a little longer than express delivery, at around 8-12 days, it is still relatively quick. Additionally, air transportation is a little cheaper than express delivery. The only downside is that the receiver has to collect the goods from the airport.

By Sea (Ocean ) Transportation
--- Advantage: Much cheaper than Express or Air transportation.
Sea transportation is an excellent option for individuals and businesses that need to transport goods across long distances. With its cost savings and global coverage, it's an attractive alternative to other transportation methods.

FAQ:
Q: Do you make inch sizes?
Q: What is your MOQ for back-up rings?
For new sizes, MOQ about 30pcs according to the molds, seal type and size.
Q: Do you accept OEM?
Q: How long does it take for production?
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