Tolerances

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Guide to reading micrometers

When components are manufactured within tight tolerances, the precise handling of micrometers is very important. But correct reading has to be learned: What scales are there? What does the reference line show? And how is the measurand actually determined? In our current blog post, micrometers are explained in detail. We show you step by step how to read analog micrometers correctly – with hands-on examples, typical sources of error and tips from manufacturing engineering.

Basic knowledgeInspectionTolerances
12 Minutes read

Technical guide to bearing selection for rotating shafts and torsion shafts

Shafts are a key element of almost any machine. In order for these components to function reliably, the bearings that carry these shafts must be perfectly matched to the respective application and installation situation. The selection of a suitable shaft bearing (rotary bearing) therefore has a significant impact on the service life and energy efficiency of a machine as well as its noise generation and maintenance requirements.

But which type of bearing is the right one for a particular shaft?

This guide shows how to select the optimal bearing solution for rotating and torsion shafts based on technical criteria and practical framework conditions.

BearingConstructionRotary MotionTolerances
14 Minutes read

Processing limits and accuracy standards for sheet metal parts

Sheet metal parts are used in our everyday life and in industry in a wide range of applications. In order for these manufactured sheet metal parts to be used interoperably, they must comply with certain accuracy standards and machining limits. These refer to specific parameters and tolerances with respect to width, length, thickness and geometric tolerances. The specifications must be taken into account when manufacturing sheet metal parts. The following examines various standards and limits in detail.

Basic knowledgeSurfacesTolerances
8 Minutes read
Ideal and deviating shaft diameter
Ideal and deviating shaft diameter

Linear shafts: Precision standards for MISUMI linear shafts

Linear shafts are a subset of linear guides and provide stability and precision in linear motion systems. Varying precision requirements are placed on linear shafts to ensure that movements are transferred at low-friction, accurately, and reliably. These requirements specify roundness, straightness, perpendicularity as well as the concentricity of the linear shaft. MISUMI offers linear shafts in standard and precision versions. In this article, you will learn about the different features, when to use which variant, and what precision requirements are all about.

Linear MotionTolerances
11 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

Fit types and tolerances – An overview

Tolerances and fits are critical in the manufacturing industry. In the technical sense, tolerances define a permissible deviation from a defined property, such as a nominal dimension. They ensure that products and components meet the required quality standards.

Basic knowledgeBearingTolerances
8 Minutes read