ISO 1328‑2 is the second part of the multi-series of international standard, that is applicable to the cylindrical gears for the ISO system of flank tolerance classification.
ISO 1328‑2 establishes a gear tooth classification system relevant to double flank radial composite deviations of individual cylindrical involute gears and sector gears.
Note: ISO 1328‑2 is applicable to gears with three or more teeth that have reference diameters of up to 600 mm.
Note: ISO 1328‑2 does not provide guidance on gear design nor does it recommend tolerances.
ISO 1328‑2 on ISO system of flank tolerance classification is relevant to:
Spur gears are a toothed component with a cylindrical shape that is used in industrial machinery to convey mechanical motion and manage speed, power, and torque.
ISO 1328‑2 specifies the appropriate definitions of gear tooth deviations, the structure of the gear tooth flank classification system, and the allowable values of the gear tooth deviations.
ISO 1328‑2 provides formulae to calculate tolerances for individual product gears when mated in double flank contact with a master gear. 11 flank tolerance classes are defined, numbered 1 to 11, in order of increasing tolerance.
ISO 1328-2 specifies categorization tolerances and measuring procedures for unassembled gears.
ISO 1328-2 provides the gear manufacturer and the gear buyer with a mutually advantageous reference for uniform tolerances.
As a result, ISO 1328-2 will enable you to consistently manufacture or appropriately select high-quality, accurate gears for different industries that support optimal performance of applications.
BS ISO 1328‑2:2020 supersedes BS 436‑5:1997, which is withdrawn. BS ISO 1328‑2:2020 includes some technical changes with respect to BS 436‑5:1997. These include:
ISO 1328-2