Chongqing Hengtairail Equipment Co.,Ltd.
Global Rolling Stock Parts Supplier
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Product overview
Railway car is equipped with spring suspension device to reduce vibration of the train. Spring suspension device determine whether a railway car can run stable and comfortable, whether railway vehicle can trough curve successful. Spring suspension device plays an important role in safety running of rail car.
There`re lots of springs for railway vehicles, Conical rubber spring is one of them. With the advantages of large unit volume and small specific gravity, the rubber spring can eliminate high frequency vibration and improve vibration performance. Because of its changeable rigidity, when it’s installed onto axle box spring suspension device, different positioning stiffness from vertical and horizontal generated. With character of non-linear, the running performance can be improved without extra friction shock absorber.
Product specification
| S.No. | Item | Value | |
| 1 | Operation Temperature | ﹣25℃ to 50℃ | |
| 2 | Type | Primary Suspension Axle Spring | |
| 3 | Standard | EN45545, GB/T 36375-2018 | |
| 4 | Application | Subway, Metro,Intercity train,Tram Light car vehicles | |
| 5 | Tensile strength | ≥15MPa | |
| 6 | Elongation at break | ＜60 Shore A | ≥400% |
| ≥60 Shore A | ≥300% | ||
| 7 | Adhesive strength of metal and rubber | ≥4 Mpa | |
| 8 | Resilience | ≥40% | |
| 9 | EN Compression Set | ≤20%(70℃, 24h) | |
| 10 | Ozone resistance | Crack free; ozone density(50±5)*10(-8), 23℃, 24h, 20% elongation, relative humidity≤65% | |
| 11 | Air oven aging performance (70℃, 96h) | Hardness Change, shore A | ≤7 |
| Tensile strength reduction rate | ≤25% | ||
| Reduction rate of elongation at break | ≤25% | ||
| 12 | Brittleness temperature(﹣40℃) | Non-destructive | |
| 13 | Fatigue test | 2,000,000 times | |
| 14 | Storage temperature | ﹣15℃ to 40℃ | |
| 15 | Surface treatment | Anti-corrosion | |
| 16 | Storage time | ≤24 months | |
Product advantages
·High damping values
·Large deflection values possible
·Prolong the fatigue life
·Restricted creep
·Uv and ozone protection
Product Structure
Product Application Package
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