Ningbo WeiWo Electromechanical Tech Co.,Ltd.
Ningbo Weiwo Electromechanical Tech Co.,Ltd
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NBR rubber oil seal national skeletion with Shore A 80 applied in shock absorber
Specifications:
| ITEM | SPEC | TEST METHOD | RESULT |
| MAIN LIP | ø18.20±0.35 | PROJECTOR | 18.12-18.16 |
| DUSTPROOF LIP | ø18.90±0.30 | PROJECTOR | 18.64-18.72 |
| OD | ø32+0.3/+0.1 | CALIPER | 32.18-32.20 |
| HEIGHT (1) | 10±0.20 | CALIPER | 10.10-10.16 |
| HEIGHT (2) | 15±0.30 | CALIPER | 15.20-15.24 |
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 | 84 | GB/T531-1999 | |
| Tensile strength | ≥12MPa | 14.2 | GB/T528-1998 | |
| Elongation @ break | ≥150% | 265 | ||
| Compression deformation | Max+50 | 19 | GB/T7759-1996 | |
| 100℃ * 70 h Sample B type | ||||
| Tear strength right angle | ≥30 | 59.56 | GB/T529-1999 | |
| air oven aging test | Hardness change point | 0～+10 | +3 | GB/T3512-2001 |
| Tensile strength change rate | Max-20 | -2 | ||
| Elongation @ break change rate | Max-50 | -6 | ||
| oil resisitant 100℃ * 70 h (IRM901) | Hardness change point | -50～+10 | +3 | GB/T1690-1992 |
| Volumn change rate | -10～+5 | +1 | ||
| oil resisitant 100℃ * 70 h (IRM903) | Hardness change point | -10～+5 | -2 | GB/T1690-1992 |
| Volumn change rate | 0～+20 | +4 | ||
| Brittleness Temperature | ≤-40℃ | -40℃ | GB/T1682-1994 | |
| 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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