GB/T 304.3-2023 Active National standards

GB/T 304.3-2023 Spherical plain bearings—Part 3:Fits

Publish Date: 2023-05-23 Implement Date: 2023-12-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 304.3-2023

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Rolling bearings

ICS Name: Sliding bearings

Publish Date: 2023-05-23

Implement Date: 2023-12-01

Pages: 13 pages

Scope

This document specifies the fitting principles between the bearing (hereinafter referred to as "bearing") and the shaft and bearing seat hole under normal working conditions, as well as the selection principles for threaded connections, recommended tolerance zones, geometric tolerances and surface roughness of the shaft and bearing seat hole. This document applies to bearing fitting design in the following situations: -- The bearing outer dimensions comply with the provisions of GB/T 9161-2001 (except for the K series), GB/T 9162-2001, GB/T 9163-2001 (except for the K and W series), and GB/T 9164-2001, and the bearing nominal inner diameter d ≤ 1,250 mm, nominal outer diameter D ≤ 2,000 mm; -- The bearing radial clearance complies with Group N specified in GB/T 9161-2001 and GB/T 9163-2001; -- The fitting shaft is a solid shaft or a thick-walled hollow shaft; -- The working temperature does not exceed 100℃.

Development Information

Word Count: 28 Thousand words Pages: 13 pages

Replace the following standards

GB/T 304.3-2002 Spherical plain bearings—Fits

Referenced Standards

GB/T 197-2003 General purpose metric screw threads—Tolerances GB/T 197-2018 General purpose metric screw threads—Tolerances GB/T 1800.1-1997 Limits and fits—Bases—Part 1:Terminology GB/T 1800.1-2009 Geometrical Product Specifications (GPS)—Limits and fits—Part 1:Bases of tolerances,deviations and fits GB/T 1800.1-2020 Geometrical product specifications (GPS)—ISO code system for tolerances on linear sizes—Part 1:Basis of tolerances, deviations and fits GB/T 3944-2002 Spherical plain bearings—Vocabulary

Related Standards

GB/T 7308-1987 Replaced

GB/T 7308-1987 Plain bearings—Thin-walled flanged half bearings—Dimensions, tolerances and methods of checking

Publish Date: 1987-02-24

GB/T 3162-1991 Replaced

GB/T 3162-1991 Plain bearings—Thin-walled bearing shells—Dimensions, structure elements and tolerances

Publish Date: 1991-04-30

GB/T 12948-1991 Replaced

GB/T 12948-1991 Plain bearings—Metallic multilay er plain bearings—Destructive testing of bond for bearing metals

Publish Date: 1991-06-01

GB/T 12949-1991 Abolished

GB/T 12949-1991 Plain bearings—Bimetallic bushes with plastic overlay

Publish Date: 1991-06-04

GB/T 13345-1992 Replaced

GB/T 13345-1992 General technical requirement of oil film bearing for rolling mill

Publish Date: 1992-01-07

GB/T 14910-1994 Replaced

GB/T 14910-1994 Plain bearings—Requirements on backings for thick-walled multilayer bearings

Publish Date: 1994-02-21