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  • BSI
    BS ISO 1328-1:2013 Cylindrical gears. ISO system of flank tolerance classification - Definitions and allowable values of deviations relevant to flanks of gear teeth
    Edition: 2013
    $526.05
    / user per year

Description of BS ISO 1328-1:2013 2013

This part of ISO 1328 establishes a tolerance classification system relevant to manufacturing and conformity assessment of tooth flanks of individual cylindrical involute gears. It specifies definitions for gear flank tolerance terms, the structure of the flank tolerance class system, and allowable values.

This part of ISO 1328 provides the gear manufacturer and the gear buyer with a mutually advantageous reference for uniform tolerances. Eleven flank tolerance classes are defined, numbered 1 to 11, in order of increasing tolerance. Formulae for tolerances are provided in 5.3. These tolerances are applicable to the following ranges:

5 ≤ z ≤ 1 000

5 mm ≤ d ≤ 15 000 mm

0,5 mm ≤ mn ≤ 70 mm

4 mm ≤ b ≤ 1 200 mm

β ≤ 45°

where

  d is the reference diameter;
  mn is the normal module;
  b is the facewidth (axial);
  z is the number of teeth;
  β is the helix angle.

See Clause 4 for required and optional measuring methods.

Gear design is beyond the scope of this part of ISO 1328.

Surface texture is not considered in this part of ISO 1328. For additional information on surface texture, see ISO/TR 10064-4.



Standard NumberBS ISO 1328-1:2013
TitleCylindrical gears. ISO system of flank tolerance classification - Definitions and allowable values of deviations relevant to flanks of gear teeth
StatusUnder Review
Publication Date2013-09-30
Identical National Standard OfISO 1328-1:2013
DescriptorsDiameter, Form tolerances, Grades (quality), Tooth profiles, Gear parameters, Symbols, Dimensional tolerances, Accuracy, Definitions, Gear drives, Cylindrical shape, Grading (quality)
ICS21.200 Gears
CommitteeMCE/5
ISBN978 0 580 71815 1
PublisherBSI
Pages62

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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