GB/T 4663-2017Rolling bearings—Cylindrical thrust roller bearings—Boundary dimensions (English PDF)

Foreword

This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This Standard replaces GB/T 4663-1994 Rolling bearings - Cylindrical thrust roller bearings - Boundary dimensions. Compared with GB/T 4663-1994, in addition to the editorial modifications, the main technical changes are as follows.

- added "Terms and definitions" and "Codes" (see Clause 3, Clause 5 of this Edition);

- added models and dimensions for 11 series of bearings of some one-way cylindrical thrust roller bearings (see Table 1 of this Edition, Table 1 of Edition 1994);

- added the structural type and boundary dimensions of two-way cylindrical thrust roller bearings (see Table 2, Table 3 of this Edition);

- deleted "old and new bearing code contrast" (see Annex A of Edition 1994).

1 Scope

This Standard specifies the boundary dimensions of one-way and two-way cylindrical thrust roller bearings.

This Standard is applicable to the design and selection of one-way and two-way cylindrical thrust roller bearings.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

GB/T 272, Rolling bearing - Identification code

GB/T 274, Rolling bearings - Chamfer dimension - Maximum values

GB/T 6930, Rolling bearings - Vocabulary

3 Terms and definitions

For the purposes of this document, the terms and definitions defined in GB/T 6930 apply.

4 Symbols

The following symbols apply to this document.

Unless otherwise stated, the symbols shown in Figures 1 and 2 and the values shown in Tables 1 to 3 indicate nominal dimensions.

D. seat outer diameter

D1. seat inner diameter

D1smin. the smallest single seat diameter d. inner diameter of one-way bearing shaft d1. outer diameter of one-way bearing shaft d1smax. maximum single shaft outer diameter d2. inner diameter of medium ring of two-way bearing d3. outer diameter of medium ring of two-way bearing r. chamfer size of shaft (one-way bearing) and seat ring back rsmin. smallest single chamfer size of shaft (one-way bearing) and seat ring back r1. chamfer size of medium ring end face r1smin. smallest single chamfer size of medium ring end face

T. one-way bearing height

T1. two-way bearing height

5 Code

The codes provided in GB/T 272 apply to this document.

6 Mark

Marking example. roller bearing 81100 GB/T 4663-2017

7 Boundary dimensions