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BS ISO 12130-1:2021

BS ISO 12130-1:2021

$167.15

Plain bearings. Hydrodynamic plain tilting pad thrust bearings under steady-state conditions – Calculation of tilting pad thrust bearings

Published By Publication Date Number of Pages
BSI 2021 34
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This document specifies a calculation method for oil-lubricated hydrodynamic plain bearings with complete separation of the thrust collar and tilting pad thrust bearing surfaces by a film of lubricant.

This document applies to plain thrust bearings with tilting-type sliding blocks (tilting pads), where a wedge-shaped lubrication clearance gap is automatically formed during operation. The ratio of width to length of one pad can be varied in the range B/L = 0,5 to 2.

This document is not applicable to heavily loaded tilting pad thrust bearings.

NOTE

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

PDF Catalog

PDF Pages PDF Title
2 undefined
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
4 Symbols, terms and units
13 5 Fundamentals, assumptions and premises
14 6 Calculation procedure
6.1 Loading operations
6.1.1 General
6.1.2 Wear
6.1.3 Mechanical loading
6.1.4 Thermal loading
6.1.5 Outside influences
15 6.2 Coordinate of centre of pressure
6.3 Load-carrying capacity
17 6.4 Frictional power
6.5 Lubricant flow rate
18 6.6 Heat balance
6.6.1 General
6.6.2 Heat dissipation by convection
19 6.6.3 Heat dissipation by recirculating lubrication
6.6.4 Mixing processes in the lubrication recess
21 6.7 Minimum lubricant film thickness and specific bearing load
6.8 Operating conditions
22 6.9 Further influence factors
23 Annex A (informative) Examples of calculation
32 Bibliography

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BS ISO 12130-1:2021
$167.15