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ISO 31657-1:2025
Plain bearings — Hydrodynamic plain journal bearings under steady-state conditions — Part 1: Calculation of multi-lobed and tilting pad journal bearings
Translate name
STANDARD published on 16.10.2025
The information about the standard:
Designation standards: ISO 31657-1:2025
Publication date standards: 16.10.2025
SKU: NS-1246136
The number of pages: 38
Approximate weight : 114 g (0.25 lbs)
Country: International technical standard
Category: Technical standards ISO
The category - similar standards:
Annotation of standard text ISO 31657-1:2025 :
Description / Abstract: This document specifies the general principles, assumptions and preconditions for the calculation of multi-lobed and tilting-pad journal bearings by means of an easy-to-use calculation procedure based on numerous simplifying assumptions. The calculation method applies to the design and optimisation of plain bearings, for example in turbines, compressors, generators, electric motors, gears and pumps. It is restricted to steady-state operation, i.e. in continuous operating states the load according to size and direction and the angular velocity of the rotor are constant.
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