Description
Technical Parameters
Specification
|
Product Name |
Nabla Blade |
|
Material |
60Si2MnA |
|
Design Feature |
Elastic non-separable/With shoulder design/Bolted fastening |
|
Height Adjustment |
-8~+4 mm |
|
Static Stiffness |
70 kN/mm |
Material and Standards
Material: Usually made of high - quality spring steel, such as 60Si2MnA, 60Si2CrA, 38Si7, etc. The hardness is generally 44 - 48 HRC.
Standards: It meets relevant standards such as DIN 17221, BS 970, GB/T 4357, and GB/T 4358.
Nabla Wedge vs. Other Locking Mechanisms
| Feature | Nabla Wedge ("Blade") | Pandrol PR Clip | Type E Clip Bolt |
|---|---|---|---|
| Component | Wedge (Lock Pin) | The clip itself (no separate lock) | Bolt and Nut |
| Locking Principle | Mechanical interlock via serrations and elastic deformation. | Friction and Spring tension from the clip's shape. | Thread tension from torquing the bolt. |
| Vibration Resistance | Exceptional. Vibration tightens the wedge. | Excellent. Designed to resist loosening. | Good. Can loosen over time, may need re-torquing. |
| Maintenance | Virtually Zero. No maintenance required. | Virtually Zero. No maintenance required. | Low. May require occasional check. |
| Installation Tool | Requires a specialized wedge driver. | A simple hammer or manual applicator. | A torque wrench. |
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