Reference number
ISO 4468:2020
International Standard
ISO 4468:2020
Gear hobs — Accuracy requirements
Edition 3
2020-07
Preview
ISO 4468:2020
75592
недоступно на русском языке
Опубликовано (Версия 3, 2020)

ISO 4468:2020

ISO 4468:2020
75592
Язык
Формат
CHF 173
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Тезис

This document specifies requirements for the accuracy of general-purpose hobs of 0,5 module to 40 module.

These hobs are intended for producing gears which conform to ISO 53 and ISO 54.

This document applies to hobs for spur and helical gears. It applies to solid (monobloc) and inserted blade hobs.

The elemental features of hobs are graded according to accuracy, as follows:

— Grade 4A;

— Grade 3A;

— Grade 2A;

— Grade A;

— Grade B;

— Grade C;

— Grade D.

Grade 4A is the highest order of precision.

In addition to the elemental tests for hobs, this document gives permitted tolerances for composite tests that are taken along the cutting edges on the line of action. The two groups of tests are not equivalent and one can choose between one or the other. If there was no previous agreement, the hob is regarded as belonging to the precision class specified if it satisfies one or the other of the two methods of inspection.

NOTE The tolerances in this document were determined for gear hobs whose dimensions conform to ISO 2490, but with certain precautions they can be applied to hobs not specified in this document.

Общая информация

  •  : Опубликовано
     : 2020-07
    : Опубликование международного стандарта [60.60]
  •  : 3
  • ISO/TC 60/SC 1
    21.200 
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