BS 1734:1951

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Specification for micrometer heads

Published By	Publication Date	Number of Pages
BSI	1951	10

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Categories: 17.040.30 - Measuring instruments, BSI

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Description

This British Standard relates to micrometer heads having measuring ranges of:

½ in.
1 in.
13 mm.
25 mm.

It applies to micrometer heads with rotatable spindles and with non-rotatable spindles, classed according to the following ranges of thimble diameter (dia. D, Figure 1):—

Type 1 Below 1 in. thimble diameter.

Type 2 1 in. and below 2 in. thimble diameter.

Type 3 2 in. thimble diameter and over.

NOTE Micrometer heads of the larger types with non-rotatable spindles may be supplied to special orders with dimensions approximately similar to those given in Table 2 and to an accuracy similar to that shown in Table 4

Heads for assembly with measuring or machine tools. Three types, thimble diameters below 1 in, 1 in and below 2 in, 2 in and over; measuring ranges ½ in, 1 in, 13 mm, 25 mm. Material, micrometer screw, spindle, thimble and barrel adjustments, measuring faces and graduations, dimensions and standards of accuracy.

Additional information

Status	Confirmed
Pages	10
Publication Date	1951-04-16
ISBN	0 580 35798 8
Standard Number	BS 1734:1951
Title	Specification for micrometer heads
Descriptors	Flatness (surface), Micrometers, Adjustment, Marking, Accuracy, Graduations, Square shape, Dimensions
Publisher	BSI
Committee	TPR/1
ICS Codes	17.040.30 - Measuring instruments

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BS 1734:1951

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