Products Description
| Product Name | Product Description | Capabilities Applied/Processes | Overall Dimensions of the Seal |
| Spring rotary mechanical seals |
It can withstand the bidirectional action of both sides of pressure or alternating pressure |
Prevent the leakage of lubricating oil in the bearing room |
Standard size |
| Color |
Black |
| Material Used | PTFE |
| Benefits |
It has good wear resistance, thermal conductivity and so on |
| In process testing performed | Customer Life-Test |
| Standards Met | RMA Standards |
| Industry for Use |
Construction machinery, construction machinery and automotive equipment, etc |
Advantages of Spring rotary mechanical seals：
1. Low friction coefficient
2. It has lubricating effect
3. Stable size
4. Wear resistance
5. High pressure resistance
6. Good chemical resistance
Spring rotary mechanical seals belong to a kind of dynamic seal and a combination seal. It is generally composed of a slip ring filled with polytetrafluoroethylene and a polymer elastic rubber seal ring (O-ring), which is mainly divided into two kinds of composite material seal and mechanical seal. Easy for us to use.
| Technical Data Sheet | ||||
| Teflon (PTFE) | ||||
| TYPICAL PROPERTIES of PTFE | ||||
| ASTM or UL test |
Property | PTFE (unfilled) |
Benefits | |
| PHYSICAL | Applications: Gaskets/Packing materials exposed to chemicals/ Bearings: Seals/Piston rings/Electrical insulation High chemical resistance; Low and high-temperature capability; Resistance to weathering; Low friction: Electrical and thermal insulation; Anti-stick surface. |
|||
| D792 | Density (lb/in3) (g/cm3) |
0.078 2.16 |
||
| D570 | Water Absorption, 24 hrs (%) | < 0.01 | ||
| MECHANICAL | ||||
| D638 | Tensile Strength (psi) | 3,900 | ||
| D638 | Tensile Modulus (psi) | 80,000 | ||
| D638 | Tensile Elongation at Break (%) | 300 | ||
| D790 | Flexural Strength (psi) | No break | ||
| D790 | Flexural Modulus (psi) | 72,000 | ||
| D695 | Compressive Strength (psi) | 3,500 | ||
| D695 | Compressive Modulus (psi) | 70,000 | ||
| D785 | Hardness, Shore D | D50 | ||
| D256 | IZOD Notched Impact (ft-lb/in) | 3.5 | ||
| THERMAL | ||||
| D696 | Coefficient of Linear Thermal Expansion (x 10 5 in./in./°F) |
7.5 | ||
| D648 | Heat Deflection Temp (°F / °C) at 264 psi |
132 / 55 | ||
| D3418 | Melting Temp (°F / °C) | 635 / 335 | ||
| - | Max Operating Temp (°F / °C) | 500 / 260 | ||
| C177 | Thermal Conductivity (BTU-in/ft2-hr-°F) (x 10-4 cal/cm-sec-°C) |
1.70 5.86 |
||
| UL94 | Flammability Rating | V-O | ||
| ELECTRICAL | ||||
| D149 | Dielectric Strength (V/mil) short time, 1/8" thick |
285 | ||
| D150 | Dielectric Constant at 1 MHz | 2.1 | ||
| D150 | Dissipation Factor at 1 MHz | < 0.0002 | ||
| D257 | Volume Resistivity (ohm-cm)at 50% RH |
> 1018 | ||
| All values at 73°F (23°C) unless otherwise noted. | ||||
| NOTE: The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers' complete material property datasheets. |
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