标准摘要
[中文适用范围]： 本文件规定了轴承的选择性装配（符合 ISO 3548-1 标准）。轴承径向游隙由轴承座直径、轴颈直径和两个半轴承的壁厚决定。通常，这些部件的总公差“叠加”为 50 µm 至 60 µm。当前的发动机发展，尤其是对发动机精细化改进的需求，由于公差“叠加”，需要减小游隙范围。本文件提出了各种选择性装配方案，以达到这些范围。 [外文原描述]： ISO 13778:2017 specifies the selective assembly of bearings (in accordance with ISO 3548‑1). The bearing diametral clearance is determined by the housing diameter, journal diameter and the wall thickness of the two half bearings. Typically, these components will have a total tolerance "stack up" of 50 µm to 60 µm. Current engine development and in particular, the desire for improved engine refinement, has provided a need to decrease the clearance range due to the tolerance "stack up". This document suggests various schemes of selective assembly to achieve such ranges.
英文名称Plain bearings — Quality assurance of thin-walled half bearings — Selective assembly of bearings to achieve a narrow clearance range