BS ISO 7902-1:2020 - Hydrodynamic plain journal bearings under steady-state conditions. Circular cylindrical bearings. Calculation procedure
Maintenance will be taking place for BSI Shop on Saturday 19th September 2020 between 08:00 AM and 14:00 PM UK time. During this period, BSI Shop will have limited functionality. Please do not make any purchases during these works. Please accept our apologies for any inconvenience caused during this essential maintenance.

BS ISO 7902-1:2020

Hydrodynamic plain journal bearings under steady-state conditions. Circular cylindrical bearings. Calculation procedure

Status : Current   Published : August 2020

Format
PDF

Format
HARDCOPY



This document specifies a calculation procedure for oil-lubricated hydrodynamic plain bearings, with complete separation of the shaft and bearing sliding surfaces by a film of lubricant, used for designing plain bearings that are reliable in operation.

It deals with circular cylindrical bearings having angular spans, ?, of 360°, 180°, 150°, 120°, and 90°, the arc segment being loaded centrally. Their clearance geometry is constant except for negligible deformations resulting from lubricant film pressure and temperature.

The calculation procedure serves to provide dimensions and optimize plain bearings in turbines, generators, electric motors, gear units, rolling mills, pumps, and other machines. It is limited to steady-state operation, i.e. under continuously driven operating conditions, with the magnitude and direction of loading as well as the angular speeds of all rotating parts constant. It can also be applied if a full plain bearing is subjected to a constant force rotating at any speed. Dynamic loadings (i.e. those whose magnitude and direction vary with time), such as those that can result from vibration effects and instabilities of rapid-running rotors, are not taken into account.

NOTE

Equivalent calculation procedures exist that enable operating conditions to be estimated and checked against acceptable conditions. The use of them is equally admissible.




Standard NumberBS ISO 7902-1:2020
TitleHydrodynamic plain journal bearings under steady-state conditions. Circular cylindrical bearings. Calculation procedure
StatusCurrent
Publication Date03 August 2020
Normative References(Required to achieve compliance to this standard)ISO 7902-3, ISO 7902-2
Informative References(Provided for Information)ISO 3448, ISO 4378-5
ReplacesBS ISO 7902-1:2013
International RelationshipsISO 7902-1:2020
Draft Superseded By19/30400021 DC
DescriptorsAxial-thrust bearings, Plain bearings, Bearings, Lubricants, Friction, Mathematical calculations, Load capacity, Loading, Hydrodynamics
ICS21.100.10
Title in FrenchPaliers lisses hydrodynamiques radiaux fonctionnant en régime stabilisé. Paliers circulaires cylindriques Méthode de calcul
CommitteeMCE/12
ISBN978 0 539 05809 3
PublisherBSI
FormatA4
DeliveryYes
Pages40
File Size2.478 MB
Price£214.00


 Your basket
Your basket is empty

Multi-user access to over 3,500 medical device standards, regulations, expert commentaries and other documents


Develop a PAS

Develop a fast-track standardization document in 9-12 months


Tracked Changes

Understand the changes made to a standard with our new Tracked Changes version


Worldwide Standards
We can source any standard from anywhere in the world