About U-cup Rod Shaft Seal
Single-lip U-cup profile made of polyurethane-MDI;suitable for medium to heavy duty applications
Due to the special design, behind the dynamic seal lip, its structure of slide segments interspersed by back-pumping channels features, excellent
back-pumping ability across the entire pressure range. The dynamic seal slide segments also have a micro-structure with excellent tribological and sealing characteristics. As well as increasing the sealing ability of the U-Cup , this also ensures a constant lubrication film underneath the seal sliding surface, reducing breakaway force even after prolonged periods of rest, and reduces dynamic friction force.
ADVANTAGES:
-Lower friction than standard U-Cups
-Lower heat generation
-High extrusion resistance
-Excellent dynamic and static sealing
-Optimum environment protection
-Back pumping ability over the entire pressure range achievedby grooved profile
-Suitable for sealing systems with double scraper
| The Index About operating |
| Material |
Operating type |
Lip |
Pressure |
Temperature |
Stroke Speed |
| PU |
Reciprocating |
Single |
40Mpa |
-30ºC~110ºC |
0.5m/s |
| Other Material : NBR HPU TPU XPU GPU |
Due to our unique mahcined process, in addition to the above ordinary cross-sections, we can machined seals of any size and material according to customers' customized drawings.
| The Detailed Index of PU Material |
| Material |
Color |
Hardness |
Work Temperature |
Density |
Elongation at break |
Elastic Modulus |
Wear & Tear |
| / |
/ |
Shore A |
ºC |
g/cm³ |
% |
N/mm³ |
mm³ |
| Standard |
/ |
DIN53505 |
/ |
EN ISO 1183 |
DIN53504/53455 |
DIN53504 |
DIN ISO4649 |
| Polyurethane |
PU |
Green |
A95±2 |
-30~110 |
1.2 |
≥450 |
12 |
18 |
| High temperature hydrolyzable polyurethane |
HPU |
Red |
A95±2 |
-20~110 |
1.2 |
≥330 |
≥13 |
17 |
| Cast polyurethane |
G-PU |
Red |
A95±2 |
-30~110 |
1.2 |
≥280 |
≥11 |
25 |
| Low temperature resistant polyurethane |
T-PU |
Blue |
A95±2 |
-50~110 |
1.17 |
≥450 |
≥12 |
15 |
| Self-lubricating polyurethane |
S-PU |
Gray-Black |
A95±2 |
-20~110 |
1.23 |
400 |
17 |
21 |
| Ultra-high hardness polyurethane |
X-PU |
Dark Green |
A97±2 |
-30~110 |
1.21 |
400 |
21 |
18 |
| Ultra-high hardness High temperature hydrolyzable polyurethane |
XH-PU |
Dark Red |
A97±2 |
-20~110 |
1.22 |
350 |
25 |
20 |
| Ultra-high hardness Self-lubricating polyurethane |
XS-PU |
Gray-Black |
A97±2 |
-20~110 |
1.25 |
350 |
25 |
29 |
QingDao Carlock Sealing Technology Co.,Ltd
-------Ultimate Quality Products Provider
As a professional manufacturer of moldless sealing technology, we can provide a complete set of standard and non-standard high-quality sealing products and solutions for various industries.
Our products are ideal for various applications with better raw materials, better processing, higher service life, excellent tensile strength and compression set, and can withstand different pressure media and operating temperatures. Effectively reduce the replacement cycle and maintenance costs. It is widely used in many industries with high quality requirements, such as; Coal mining, oil exploitation, wind power generation, lifting machinery, die-casting equipment, etc.
CNC lathe process breaks through the limitations of traditional molding processes. We can process seals of any size, any form and any material, As a source factory with 20 years of industry experience, we have been a reliable partner for our customers in the global market from design to after-sales.
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