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Hydrodynamic plain journal bearings under steady-state conditions — Circular cylindrical bearings — Part 1: Calculation procedure
| 분야 | ISO/TC 123/SC 8 : Calculation methods for plain bearings and their applications |
|---|---|
| 적용범위 | This document specifies a calculation procedure for oil-lubricated hydrodynamic plain bearings, with complete separation of the shaft and bearing sliding surfaces by a film of lubricant, used for designing plain bearings that are reliable in operation. It deals with circular cylindrical bearings having angular spans, Ω, of 360°, 180°, 150°, 120°, and 90°, the arc segment being loaded centrally. Their clearance geometry is constant except for negligible deformations resulting from lubricant film pressure and temperature. The calculation procedure serves to provide dimensions and optimize plain bearings in turbines, generators, electric motors, gear units, rolling mills, pumps, and other machines. It is limited to steady-state operation, i.e. under continuously driven operating conditions, with the magnitude and direction of loading as well as the angular speeds of all rotating parts constant. It can also be applied if a full plain bearing is subjected to a constant force rotating at any speed. Dynamic loadings (i.e. those whose magnitude and direction vary with time), such as those that can result from vibration effects and instabilities of rapid-running rotors, are not taken into account. NOTE Equivalent calculation procedures exist that enable operating conditions to be estimated and checked against acceptable conditions. The use of them is equally admissible. |
| 국제분류(ICS)코드 | 21.100.10 : 평 베어링 |
| 페이지수 | 32 |
| Edition | 3 |
| No. | 표준번호 | 표준명 | 발행일 | 상태 |
|---|---|---|---|---|
| 1 | ISO 7902-1:2020 | Hydrodynamic plain journal bearings under steady-state conditions — Circular cylindrical bearings — Part 1: Calculation procedure | 2020-06-10 | 표준 |
| 2 | ISO 7902-1:2013 | Hydrodynamic plain journal bearings under steady-state conditions — Circular cylindrical bearings — Part 1: Calculation procedure | 2013-10-31 | 구판 |
| 3 | ISO 7902-1:1998 | Hydrodynamic plain journal bearings under steady-state conditions — Circular cylindrical bearings — Part 1: Calculation procedure | 1998-04-09 | 구판 |
ISO 7902-2:2020 - Hydrodynamic plain journal bearings under steady-state conditions — Circular cylindrical bearings — Part 2: Functions used in the calculation procedure 상세보기
ISO 7902-3:2020 - Hydrodynamic plain journal bearings under steady-state conditions — Circular cylindrical bearings — Part 3: Permissible operational parameters 상세보기
ISO 7902-3:2020 - Hydrodynamic plain journal bearings under steady-state conditions — Circular cylindrical bearings — Part 3: Permissible operational parameters 상세보기
ISO 7902-2:2020 - Hydrodynamic plain journal bearings under steady-state conditions — Circular cylindrical bearings — Part 2: Functions used in the calculation procedure 상세보기
ISO/TS 31657-2:2020 - Plain bearings — Hydrodynamic plain journal bearings under steady-state conditions — Part 2: Functions for calculation of multi-lobed journal bearings 상세보기
ISO/TS 31657-1:2020 - Plain bearings — Hydrodynamic plain journal bearings under steady-state conditions — Part 1: Calculation of multi-lobed and tilting pad journal bearings 상세보기
ISO 12129-2:2019 - Plain bearings — Tolerances — Part 2: Tolerances on form and position and surface roughness for shafts and thrust collars 상세보기
IEC TS 63134:2020 - Active assisted living (AAL) use cases 상세보기
IEC 60034-5:2020 RLV - Rotating electrical machines - Part 5: Degrees of protection provided by the integral design of rotating electrical machines (IP code) - Classification 상세보기
KS B ISO TS 25740-1 - 에스컬레이터 및 무빙워크에 대한 안전요건 — 제1부: 세계공통 필수 안전요건(GESRs) 상세보기
KS B ISO TS 8100-21 - 승객 및 화물 운송용 엘리베이터 —제21부: 세계공통 필수안전요건(GESRs)을 충족하는 세계공통 안전 파라미터(GSPs) 상세보기
KS C IEC TS 62872 - 산업 시설과 스마트 그리드 사이의 산업 공정 측정, 제어 및 자동화 시스템 인터페이스 상세보기
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