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GB/T 21466.3-2008: Hydrodynamic plain journal bearings under steady-state conditions -- Circular cylindrical bearings -- Part 3: Permissible operational parameters
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 21466.3-2008 | English | 194 |
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Hydrodynamic plain journal bearings under steady-state conditions -- Circular cylindrical bearings -- Part 3: Permissible operational parameters
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GB/T 21466.3-2008
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Basic data | Standard ID | GB/T 21466.3-2008 (GB/T21466.3-2008) | | Description (Translated English) | Hydrodynamic plain journal bearings under steady-state conditions -- Circular cylindrical bearings -- Part 3: Permissible operational parameters | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J12 | | Classification of International Standard | 21.100.10 | | Word Count Estimation | 10,144 | | Date of Issue | 2008-02-28 | | Date of Implementation | 2008-07-01 | | Quoted Standard | GB/T 1800.4-1999; GB/T 18326-2001; GB/T 21466.1-2008; JB/T 7921-1995; JB/T 7922-1995; ISO 4381 | | Adopted Standard | ISO 7902-3-1998, IDT | | Regulation (derived from) | National Standard Approval Announcement 2008 No.3 (Total No.116) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the minimum allowable thickness of the lubricant film experience, bearing the maximum allowable temperature of experience and bearing than the maximum allowable pressure of empirical experience with the value promise. | GB/T 21466.3-2008: Hydrodynamic plain journal bearings under steady-state conditions -- Circular cylindrical bearings -- Part 3: Permissible operational parameters
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Hydrodynamic plain journal bearings under steady-state conditions Circular cylindrical bearings Part 3. Permissible operational parameters
ICS 21.100.10
J12
National Standards of People's Republic of China
GB/T 21466.3-2008/ISO 7902-3.1998
Under steady-state conditions Hydrodynamic Journal Bearing
Round plain bearings
Part 3. Permissible operational parameters
(ISO 7902-3.1998, IDT)
Posted 2008-02-28
2008-07-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 21466 "steady-state conditions Hydrodynamic Journal Bearing circular slide bearings" consists of the following three parts.
--- Part 1. Calculation procedure
--- Part 2. Functions used in the calculation process
--- Part 3. Permissible operational parameters
This part of GB/T 21466 Part 3.
This section identical with the international standard ISO 7902-3.1998 "under steady state conditions Hydrodynamic Journal Bearing circular bearing
Part 3. The operating parameter "Xu used.
This part is proposed by China Machinery Industry Federation.
This part of the jurisdiction of the National Standardization Technical Committee of the sliding bearings.
This section is drafted. the machine Productivity Promotion Center, Xi'an Jiaotong University, Zhejiang Bearing Co., Ltd. Shanghai Branch.
This part of the National Standardization Technical Committee Secretariat slide bearing responsible for the interpretation.
GB/T 21466.3-2008/ISO 7902-3.1998
Introduction
Sliding bearing tribological system operating limits. They are some of the empirical values. Even will be some impact in other areas, it is still
Able to meet the operational reliability (see GB/T 21466.1).
GB/T 21466.3-2008/ISO 7902-3.1998
Under steady-state conditions Hydrodynamic Journal Bearing
Round plain bearings
Part 3. Permissible operational parameters
1 Scope
Note. For some applications, such as taking into account the information provided by the manufacturer, the above experience can be modified. Definitions and symbols in the calculation example
GB/T 21466.1-2008 given.
2 Normative references
The following documents contain provisions which, through reference GB/T 21466 in this section constitute provisions of this section. For dated reference documents
Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section
Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this
section.
GB/T 1800.4-1999 Limits and fits standard tolerance grades and limit deviations for holes and shafts of (eqv ISO 286-2. 1988)
GB/T 18326-2001 Plain bearings thin wall bearing metal multilayer material (idt ISO 4383.1991)
By GB/T 21466.1-2008 steady-state conditions Hydrodynamic Journal Bearing circular plain bearings - Part 1. Calculation procedure
(ISO 7902-1.1998, IDT)
JB/T 7921-1995 Plain bearings single and multi-cast copper alloy bearings
JB/T 7922-1995 Plain bearings single bearing forged copper alloy
ISO 4381 Plain bearings multilayer plain bearings - Lead and tin casting alloys
3 Avoid operating parameters of wear
And minimize the possibility of reducing the sensitivity to failure. Avoid pollution particles into the lubricant, or it may lead to increased wear, scratch
Marks and local overheating, thereby undermining the normal operation of the sliding bearing. If necessary, respond appropriately lubricating oil filter.
3.2 As a transition to mixed lubrication characteristic parameters (see GB/T 21466.1-2008,6.6), the minimum allowable thickness of the lubricant film
(1)
Which takes into account.
--- In an ideal position (XX line) at the journal and the bearing is not the sum of the microscopic ten point height of roughness [R B + R z z J]
--- Coaxial axis (YY line) [B y/2] within the bearing width
--- Average deflection (ZZ line) [y/2]
That is equivalent waviness when rotating load journal.
GB/T 21466.3-2008/ISO 7902-3.1998
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