GB/T 7218-2013Rolling bearings - Miniature radial ball bearings with flanged outer ring - Boundary dimensions (English PDF)

1 Scope

This standard specifies the dimensions in line with GB/T 273.3-1999, flange dimensions conform to GB/T 7217-2013, an inner diameter of 0.6mm ~

10mm, diameter series 7,8,9,0,2,3 with flanged outer ring and miniature deep groove ball without shields or seals bearing dimensions to

And diameter series 8 and 9 with the flange of the outer ring isolated mini corner Unshuttered contact ball bearing dimensions.

This standard applies to flanged outer Miniature radial ball bearing design and selection.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein

Member. For undated references, the latest edition (including any amendments) applies to this document.

GB/T 272-1993 Rolling Code Method

GB/T 273.3-1999 Rolling bearings dimensions, general plan

GB/T 274-2000 Rolling maximum chamfer dimensions

GB/T 5800.1-2012 bearings - Instrument precision bearings - Part 1. Metric series bearing dimensions, tolerances and characteristic

GB/T 6930-2002 Rolling Words

GB/T 7217-2013 Rolling bearings Radial ball bearings with flanged outer ring - Flange dimensions

GB/T 7811-2007 Rolling Parameter Symbol

Supplementary Provisions JB/T 2974-2004 Rolling Code Method

3 Terms and Definitions

Terms and definitions GB/T 6930-2002 defined apply to this document.

4 Symbol

GB/T 7811-2007 and given the following symbols apply to this document.

Unless otherwise indicated, Figures 1, and the symbol shown in Tables 1 and 2 are shown in numerical 12 indicates the nominal size.

B. Bearing width

C1. the outer ring flange width d. bearing bore

D. Bearing outside diameter

D1. the outer diameter of the outer ring flange r. chamfer dimension […]