ISO 12131-1:2001
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Plain bearings Hydrodynamic plain thrust pad bearings under steady-state conditions Part 1: Calculation of thrust pad bearings
Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users
14-07-2020
English, French
25-04-2001
The aim of this part of ISO 12131 is to achieve designs of plain bearings that are reliable in operation, by the
application of a calculation method for oil-lubricated hydrodynamic plain bearings with complete separation of the
thrust collar and plain bearing surfaces by a film of lubricant [1].
This part of ISO 12131 applies to plain thrust bearings with incorporated wedge and supporting surfaces having
any ratio of wedge surface length lwed to length of one pad L. It deals with the value lwed/L = 0,75 as this value
represents the optimum ratio [2]. The ratio of width to length of one pad can be varied in the range B/L = 0,5 to 2.
The calculation method described in this part of ISO 12131 can be used for other incorporated gap shapes, e.g.
plain thrust bearings with integrated baffle, when for these types the numerical solutions of Reynolds' differential
equation are known.
The calculation method serves for designing and optimizing plain thrust bearings e.g. for fans, gear units, pumps,
turbines, electrical machines, compressors and machine tools. It is limited to steady-state conditions, i.e. load and
angular speed of all rotating parts are constant under continuous operating conditions. Dynamic operating
conditions are not included.
Important note : All end users must be registered with an Account prior to user licenses being assigned.Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.