GB/T 20060-2011 in English

《GB/T 20060-2011滚动轴承 圆柱滚子轴承 可分离斜挡圈 外形尺寸》由TC98（全国滚动轴承标准化技术委员会）归口，主管部门为中国机械工业联合会。

Rolling bearings - Cylindrical roller bearings, separate thrust collars - Boundary dimensions

1 Scope

This Standard specifies the width, the maximum outside diameter, the bore and the bore minimum chamfer of separate thrust collars for cylindrical roller bearings in diameter series 0, 2, 3, and 4 as specified in ISO 15.

Dimensions for overall width and other geometrical features are not specified as they are dependent on the internal design of the 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 (including any amendment) applies.

ISO 15 Rolling bearings - Radial bearings - Boundary dimensions, general plan
ISO 582 Rolling bearings - Chamfer dimensions - Maximum values
ISO 5593 Rolling bearings - Vocabulary
ISO 15241 Rolling bearings - Symbols for quantities

3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 5593 apply.

4 Symbols

For the purposes of this document, the symbols given in ISO 15241 and the following apply.

The symbols shown in Figure 1 and the values given in Tables 1 and 2 denote nominal dimensions unless specified otherwise.

B1——width of thrust collar protruding beyond inner ring face;

d——bore diameter;

d1——outside diameter;

r1——chamfer dimension;
r1smin——smallest single chamfer dimension.

5 Dimensions

Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Dimensions