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Locking Pins - Spring Plugs and Cotter Pins - Shapes and Dimensions

Spring plugs and cotter pins (also called locking pin) are locking elements for different applications. They are often used for bolt connections as a simple and releasable locking element and are used to secure the axial force. The axial force is not the main load on the joint. The locking element is primarily used to hold the assembly together. The axial force is therefore often a smaller by several orders of magnitude than the radial force on the bolt. This article discusses the locking principles for bolt joints with locking pins, along with application examples of the various locking elements in mechanical engineering, and based on what criteria these elements can be selected.

DIN, EN, ISO, JISJoining
9 Minutes read

Form and position tolerances iaw. ISO 1101 and Japanese standard JIS B 0001: The most important information

Form and position tolerances are technical specifications that ensure uniform handling of dimensions and tolerances in manufacturing. They are mainly used in the manufacture of components in order to ensure the accuracy of parts.

Basic knowledgeDIN, EN, ISO, JISTolerances
6 Minutes read

Tolerance classes iaw. ISO 22081 and DIN ISO 2768: Optimized use of general tolerances

Tolerances are an essential aspect for manufacturing mechanically moving parts, as they ensure the correct interaction of components. General tolerances and their tolerance classes are used to simplify drawings. The standard DIN ISO 2768 specifies tolerances. Many design engineers use general tolerances as a simplified variation of tolerances to facilitate the design process.

Basic knowledgeDIN, EN, ISO, JISTolerances
10 Minutes read

Tension pins – Overview design and application

Tension pins, or spring pins are mechanical fastening elements made of spring steel. These elements join components safely and reliably while offering a certain degree of flexibility. They are easy to install and provide even load distribution across the surface of the pin and bore hole. They are widely used in many industries and applications and are particularly useful in applications where a permanent connection is required without the use of screws or other fasteners.

Basic knowledgeDIN, EN, ISO, JISJoining
9 Minutes read

Comparison of steels in mechanical engineering with other standards such as JIS and AISI

There are different designation systems for the properties of steel. The underlying standards form the basis for the classification and designation of steel grades using material numbers. In this article we compare the steel grades classified according to DIN/EN/ISO with their respective counterparts in JIS (Japanese Industrial Standard).

Basic knowledgeDIN, EN, ISO, JIS
7 Minutes read