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  • BSI
    BS ISO 4468:2020 Gear hobs. Accuracy requirements
    Edition: 2020
    $473.45
    / user per year

Description of BS ISO 4468:2020 2020

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:

  1. Grade 4A;

  2. Grade 3A;

  3. Grade 2A;

  4. Grade A;

  5. Grade B;

  6. Grade C;

  7. 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.



Standard NumberBS ISO 4468:2020
TitleGear hobs. Accuracy requirements
StatusDefinitive
Publication Date2020-08-05
ReplacesBS ISO 4468:2009
Identical National Standard OfISO 4468:2020
DescriptorsCutting tools, Grades (quality), Gear hobs, Milling cutters, Tolerances (measurement), Accuracy, Spur gears, Dimensional tolerances, Helical gears, Gear-cutting machines
ICS21.200 Gears
CommitteeMCE/5
ISBN978 0 539 00362 8
PublisherBSI
Pages46

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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