Why Are Ordinary Bolts Called Bearing Bolts?

Discover the fascinating world of fasteners and the unique nuances that give simple tools like ordinary bolts their names. This article delves into the intriguing reasons why ordinary bolts are often referred to as bearing bolts and how they play a crucial role in power transmission.

Introduction to Bolts and Power Transmission

Bolts, in their most basic form, are essential mechanical fasteners used to join two or more parts together. However, their functionality extends beyond mere joining. To understand why we call ordinary bolts 'bearing bolts,' it's crucial to grasp the ways in which they transmit power.

Power Transmission by Bolts: Two Main Methods

Bolts have the ability to transmit power in two primary methods:

1. Direct Power Transmission

In this method, bolts can directly transfer power from one part to another, often through the application of tension or torque. However, to be more precise, bolts that actively participate in power transmission are more specifically referred to as power transmission bolts.

2. Support and Load Distribution

On the other hand, some bolts primarily serve to support and distribute loads rather than transmit power directly. These types of bolts are often termed civilian bolts.

The Term 'Bearing Bolts' Explained

The term 'bearing bolts' is commonly used to describe bolts that serve a dual purpose: they not only join components but also bear the load or support the weight of the structure. While this term might not be universally adopted, it highlights the fact that some bolts are designed to handle significant loads while maintaining the structural integrity of the joint.

The Role of Tension and Load in Power Transmission

The critical aspect that distinguishes 'bearing bolts' from other ordinary bolts lies in the tension and load they bear. When a bolt is tightened, it generates tension that creates a reaction force, which in turn distributes the load across the joined surfaces. This reaction force is what we commonly refer to as the 'bearing' aspect of the bolt.

Practical Applications of Bearing Bolts

Bearing bolts are widely used in various applications where structural support and power transmission are both necessary. Here are some examples:

1. Construction Industry

In construction, bearing bolts are indispensable for building bridges, buildings, and other structures. They ensure that the weight of the structure is evenly distributed and that all components are securely fastened.

2. Automotive Industry

Automotive engineers rely on bearing bolts to secure components like engine blocks and transmission mounts. These bolts not only join parts but also bear the mechanical loads generated during operation.

3. Aerospace Engineering

In aerospace, bearing bolts are used in critical components such as aircraft wings and landing gear. They must withstand significant aerodynamic forces and ensure the long-term reliability of the vehicle.

Conclusion

In summary, the term 'bearing bolts' might seem somewhat redundant, but it accurately describes a specialized type of bolt designed to not only join components but also to handle and distribute significant loads. Understanding the nuances of these tools is essential for anyone working with mechanical or structural design, ensuring that structures and machines can function at their best.

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Additional Resources

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