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ISO 15312:2018

Current

Current

The latest, up-to-date edition.

Rolling bearings — Thermal speed rating — Calculation

Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

French, English

Published date

27-02-2018

€92.00
Excluding VAT

ISO 15312:2018 defines the thermal speed rating for oil bath lubricated rolling bearings and defines calculation principles for the determination of this parameter. The parameter determined in accordance with this document applies to rolling bearings of the given series and sizes of standard design or of a design that, from a frictional point of view, can be related to a standard design bearing.

In most cases of standard assembly, the permissible temperature determines the maximum operating speed. Heating of the assembly is then generated by the bearing.

Thrust ball bearings are excluded from this document as kinematic effects do not allow the thermal speed rating defined in this document to be applied.

NOTE 1 In Annex A mean values for the coefficients f0r and f1r are given ? f0r for calculating viscous losses of oil bath lubricated bearings and f1r for calculating frictional losses of bearings.

NOTE 2 Explanatory notes on the limiting criterion are given in Annex B.

NOTE 3 In Annex C the reference conditions for grease lubrication are defined. The reference conditions are chosen such that the thermal speed rating for grease lubrication is identical to that for oil bath lubrication.

Committee
ISO/TC 4/SC 8
DevelopmentNote
Supersedes ISO/DIS 15312. (03/2018)
DocumentType
Standard
Pages
14
PublisherName
International Organization for Standardization
Status
Current
Supersedes

Standards Relationship
NEN ISO 15312 : 2018 Identical
BS ISO 15312:2003 Identical
NF ISO 15312:2018 Identical
DIN ISO 15312:2019-04 Identical
BS ISO 15312:2018 Identical

ISO 104:2015 Rolling bearings Thrust bearings Boundary dimensions, general plan
ISO 5593:1997 Rolling bearings Vocabulary
ISO 3031:2000 Rolling bearings Thrust needle roller and cage assemblies, thrust washers Boundary dimensions and tolerances
ISO 1132-1:2000 Rolling bearings — Tolerances — Part 1: Terms and definitions
ISO 5753-1:2009 Rolling bearings Internal clearance Part 1: Radial internal clearance for radial bearings
ISO 15241:2012 Rolling bearings — Symbols for physical quantities
ISO 76:2006 Rolling bearings Static load ratings

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