BS 4064 is an International Standard that discusses the technical specifications for plain setting rings for use with internal diameter measuring machines.
BS 4064 relates to plain setting rings primarily intended to be used, either singly or in combination, for checking the scales on internal diameter measuring equipment.
BS 4064 provides for a range of metric rings in sizes from 2 mm to 150 mm in three grades of accuracy, viz.
BS 4064 specifies requirements for material, hardness, surface texture and recommended sections for the setting rings.
BS 4064 on specification for plain setting rings is useful for:
The setting is one of the defining characteristics of a ring that impacts its worth. BS 4064 give values designed to ensure that the bore of the ring is round and parallel within limits consistent with its grade of accuracy. BS 4064 also specifies the accuracy of determination appropriate to the various grades.
BS 4064 calls for all setting rings to be examined for departures from ideal roundness to ensure that any ring complying with BS 4064 is suitable for checking all types of internal measuring equipment regardless of whether two or three measuring contacts are employed. BS 4064 describes the general features of the design of plain setting rings that help users to manufacture good quality, highly efficient products. BS 4064 provides information on the surface texture and stabilization of steel setting rings to verify the performance characteristics of setting rings which ensure their reliability.
By adopting BS 4064 you can learn more about the specification for plain setting rings for use with internal diameter measuring machines which can help you in measuring the diameter and will also help you with accurate testing.