The allowable bearing pressure for a given material cannot be defined with absolute precision. Several factors play a key role in determining it:
- The manufacturing process
- The material’s fiber orientation
- The surface finish
- Temperature variations
How Can Bearing Pressure Be Reduced?
Bearing pressure can be reduced by adopting the following measures:
- Using flange bolts
- Using flange nuts
- Chamfered holes (which can increase the allowable bearing pressure by up to 20%)
- Through holes according to ISO 273 (fine series)
Flange Bolts and Flange Nuts: What Are the Benefits?
The main advantages include:
- Reduced settling of the joint
- Better retention of the assembly preload
- Larger and more cost-effective hole tolerances
- Improved resistance to vibration compared to standard bolts and nuts
- Fewer fastening elements required
- Faster assembly
Using flanged fasteners is generally a more effective solution than using large washers placed under standard bolts and nuts.
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