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Basic Info.
Model NO.
Customized Type
Standard
Standard
Condition
New
Transport Package
Polybag-Paper Carton-Wooden Case
Specification
Customized
Trademark
znspring
Origin
Dezhou China
HS Code
8607910000
Production Capacity
500 Sets / Day
Product Description
The ball joint is a rubber elastic connecting element installed on the primary and secondary drawbars, booms, jibs, motor suspensions, hydraulic vibration damping and other systems of various vehicle bogies, with flexible connection and elastic positioning. , its stiffness range is relatively flexible, and ideal radial, axial, deflection and torsional stiffness can be achieved, thereby ensuring the smooth operation of the vehicle system and improving the safety and comfort of the vehicle. Our company has cooperated with domestic and foreign companies to produce more than 100 types of ball joints. And can customize various functional ball joints according to customer needs.
| Name | Parameter information |
| Radial stiffness test along Z axis | Under the radial load of 0~75kN along the Z axis, the radial stiffness is 240 (1±25%) kN/mm; |
| Radial stiffness test along X axis | Under the radial load of 0~75kN along the X axis, the radial stiffness is >100kN/mm; |
| Axial static stiffness | Under the axial loading of 0~1kN along the Y axis, the axial stiffness is 2.5 (1±25%) kN/mm (reference); |
| Deflection static stiffness | When the deflection is ±4° around the X-axis and Z-axis, the deflection static stiffness is less than or equal to 375Nm/° |
| Torsional Static Stiffness | When twisted around the Y axis ±15°, the torsional static stiffness is less than or equal to 33Nm/° |
| Resistance test | >100 megohms |
| Heat aging test | 70ºC-336H, static radial stiffness change rate ≤15%, no cracking and degumming, etc. |
| Low temperature test | Temperature-radial stiffness change rate: -25ºC-20%, -40ºC-50% |
| High temperature test | Temperature-radial stiffness change rate: 50ºC-20% |
| Stress test | Static radial stiffness before and after fatigue does not exceed ±15% |
| Creep test | Creep rate≤0.035 |
| Ultimate load visual inspection | Radial load 75kN, keep for one minute, observe the appearance of the product |
| Service life | The main line railway passenger car is not less than 6 years or 800,000 kilometers (whichever comes first) |
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