Ningbo WeiWo Electromechanical Tech Co.,Ltd.
Ningbo Weiwo Electromechanical Tech Co.,Ltd
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65Mn Spring Material NBR Oil Seal With Shore A 75 - 85 Tensile Strength ≥ 10 for Car Shock
Specifications:
| ITEM | SPEC | TEST METHOD | RESULT |
| MAIN LIP | ø11.1±0.30 | PROJECTOR | 11.052-11.088 |
| DUSTPROOF LIP | ø11.5±0.30 | PROJECTOR | 11.440-11.528 |
| OD | ø26+0.25/+0.15 | CALIPER | 26.18-26.23 |
| HEIGHT (1) | 8.5±0.20 | CALIPER | 8.37-8.43 |
| HEIGHT (2) | 11±0.30 | CALIPER | 10.83-10.94 |
Description:
Our company is specialized in producing shock absorber parts: oil seal, Piston, Rod Guide, base valve.
piston rod, valve disc, stamping parts and other sinter parts.
Equipment Advantages:
Automatic Hydraulic Machines
Automatic Mechanical Pressers
Vacuum Furnaces
Sintering furnace
CNC tooling machine
Properties:
| ITEM | SPEC | RESULT | STANDARD | |
| Shore A | 80±5 | 82 | GB/T531.1 | |
| Tensile strength | ≥10MPa | 16.92 | GB/T528.2 | |
| Elongation @ break | ≥125% | 198 | ||
| Compression deformation | Max+25 | 20 | GB/T7759 | |
| 100℃ * 70 h Sample B type | ||||
| air oven aging test | Hardness change point | 0～+10 | +3 | GB/T3512 |
| Tensile strength change rate | Max-20 | 5 | ||
| Elongation @ break change rate | Max-40 | -10 | ||
| oil resisitant 100℃ * 70 h (IRM901) | Hardness change point | -5～+10 | +3 | GB/T1690 |
| Volumn change rate | -10～+5 | -3 | ||
| oil resisitant 100℃ * 70 h (IRM903) | Hardness change point | -20～0 | -12 | GB/T1690 |
| Volumn change rate | 0～+35 | 20 | ||
| Brittleness Temperature | ≤-40℃ | -45℃ | GB/T1682 | |
| Rubber standard: HG/T2810-2008 WA8533 | ||||
We can also produce different valve seat with different dimensions.
Some dimensions of compression valve seat are below:
| ØD | ØD1 | ØD2 | Ød | H | H1 | H2 | h |
| 28 | 23.8 | 22.1 | 16 | 11 | 4.3 | 2.5 | 3 |
| 29.8 | 25.8 | 22.1 | 16 | 11.5 | 4.3 | 2.5 | 3.5 |
| 33 | 28.3 | 22.1 | 16 | 15 | 7.3 | 3 | 4 |
| 34 | 29.1 | 22.1 | 17 | 16 | 9.5 | 3.5 | 4 |
| 35 | 30.8 | 22.1 | 16 | 15 | 7.3 | 3 | 4 |
Sintered Parts
1. Professional Fe/Cu based powder metallurgy parts manufacturer
2. Process flow: Mixing--Compacting--Sintering--Re-sizing--ultra sonic cleaning--vacuum oiling--Packing
3. High precision, low noise, wear resistance, energy saving, environment protection, high efficiency and low cost.
4. High quality guarantee: electronic balance to ensure density, test equipments to ensure crushing
strength, QC and PQC to ensure close tolerance and accurate dimension.
5. Design ability: Developed different models of gear, bearing, bushing, structural parts etc.
can produce according to drawings or samples.
Applications:
1. Automotive Part
2. Motorcycle Part
3. Pump Parts
4. Locomotive Parts
5. Machinery Parts
6. Tool Parts
Competitive Advantage:
High quality guarantee:
(1) Electronic balance ensure density
(2) Test equipments to ensure crushing strength
(3) QC an PQC to ensure close tolerance and accurate dimension
Design ability:
Develop different models of gear, bearing, bushing, structural parts etc. can produce according to drawings or samples.
Picture show:
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