GB/T 16848-1997 in English

《GB/T 16848-1997直廓环面蜗杆、蜗轮精度》由TC52（全国齿轮标准化技术委员会）归口，主管部门为国家标准化管理委员会。
本标准规定了直廓环面蜗杆、蜗轮及其蜗杆副的误差定义、代号、精度等级、齿坯要求、检验与公差、侧隙和图样标注。本标准适用于轴交角为90°,中心距为80~1250mm的动力直廓环面蜗杆传动。

GB/T 16848-1997 Accuracy of double enveloping worm gearing with straight line generatrix

1 Scope

This standard specifies the error definition, code, accuracy grade, gear blank inspection and tolerance, backlash, and drawing indication of enveloping worm with straight line generatrix, worm wheel and their worm gear pairs.

This standard is applicable to the power enveloping worm with straight line generatrix transmission with a shaft angle of 90° and a center distance of 80−1,250 mm.

2 Definitions and codes

See Table 1 for the errors, as well as the definitions and codes of backlash of the enveloping worm with straight line generatrix, worm wheel and worm gear pairs in this standard.

Table 1 Errors, as well as the definitions and codes of backlash of the worm, worm wheel and worm gear pairs

Foreword i
1 Scope
2 Definitions and codes
3 Accuracy grade
4 Requirements for gear blank
5 Inspection and tolerance of worm and worm wheel
6 Inspection and tolerance of worm gear pair
7 Requirements for backlash of worm gear pair
8 Drawing indication
Annex A (Informative) Tolerance of main base radius
Annex B (Informative) Gear blank tolerance of worm and worm wheel