British Standards Institution

Source:: ISO
Committee:: MCE/12 - Plain bearings
Categories:: Information management | Standardization. General rules | Engineering | Mechanical systems and components | Bearings | Bearings. General | Bearings. Plain

Scope

This document specifies a calculation procedure for maximum bearing temperature and effective dynamic viscosity in lubricant film of oil-lubricated and statically loaded hydrodynamic plain journal bearing with circular cylindrical shape, angular span Ω of 360°, and width ratio B* of 0,5 to 1,5 under fluid lubrication regime. Purpose and justification of the proposal

Purpose

Although ISO 7902 specifies the main characteristics of hydrodynamic plain journal bearings, it doesn’t specify bearing maximum temperature that is important bearing characteristic for high speed rotating machineries. A new document is required to specify the bearing maximum temperature, that is calculated by thermo-hydrodynamic lubrication calculation.

Comment on proposal

Required form fields are indicated by an asterisk (*) character.

How important do you think standardization is in this area? *

Do you agree that a standard on this subject is feasible?: *

Please give reasons for your selections above: *

Would you or your organization use the standard? *

Would you or your organization be prepared to participate in the development of the standard or to comment on the draft when it is available? *

Are you aware of any regulation, existing standards and other good practice information in this area in the UK (e.g. Industry codes of practice; company specifications, international or European Standards)? *

Would the development of a standard(s) in this area have a particular impact/relevance to SME, consumer, environmental or societal interests? *

Are you aware of any other organizations to which this proposal may be relevant? If so please provide details below. *

Additional comments on the scope or proposal:

Although BSI will not usually enter into correspondence regarding individual comments or suggestions we may wish to contact you to seek further clarification. Please indicate whether this will be acceptable: *

Discard

Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal

Proposal start date:

18/01/2021

Proposal end date:

26/03/2021

2. Draft

3. Public Comments

4. Comment Resolution

5. Approval

6. Publication

Learn more about the standards development process

Standards Development

ISO/NP 6834 Plain bearings -- Thermo-hydrodynamic lubrication design charts for circular cylindrical bearings under steady-state conditions

Scope

Purpose

Comment on proposal

Discard changes?

Submit comment

Submit comment

Follow standard

Unfollow standard

Error