ASME B89-1-10M pdf free download

ASME B89-1-10M-2001 pdf free download.DIAL INDICATORS (FOR LINEAR MEASUREMENTS).
This Standard is intended to provide the essential requirements for dial indicators as a basis for mutual understanding between manufacturers and consumers. Described herein are various types and groups of dial indicators used to measure a linear dimension of a variation from a reference dimension.
2 REFERENCES CS(E) 119-45 Dial Indicators (For Linear Measurements) Publisher: Department of Commerce, 1401 Constitution Avenue NW, Washington, DC 20230 A-A-2348B Indicator, Dial, Accessories, and Test Set Publisher: General Services Adminstration, 1800 F Street NW, Washington, DC 20405 MIL-I-8422D Indicators, Dial and Accessories Publisher: National Technical Information Service (NTIS), 5285 Port Royal Road, Springfield, VA 22161 ISO R/463 Dial Gauges Reading in 0.01 mm, 0.001 in. and 0.0001 in. Publisher: International Organization for Standardization (ISO)，1 rue de Varembe, Case Postale 56, CH- 1211, Geneve, Switzerland/Suisse
3 GLOSSARY dial indicator: a measuring instrument in which small displacements of a spindle or a lever are magnified by suitable mechanical means to a pointer rotating in front of a circular dial having a graduated scale. error of indication: the amount by which the displayed value on a measurement device differs from the true input.
4 CLASSIFICATION BY TYPE (a) Type A. Dial indicators in which the spindle is parallel to the dial face (see Fig. 1). (b) Type B. Dial indicators in which the spindle is perpendicular to the dial face (see Fig. 2). (c) Type C. Dial indicators in which the measuring contact member is a lever. These are also known as dial test indicators (see Fig. 3).
5 CLASSIFICATION BY GROUP Group members are assigned in accordance with nominal bezel diameter and apply only to Type A and B indicators (Table 1). For Type C indicators, which are available in a variety of sizes and designs, refer to the various manufacturers’ standards. Group descriptions are as follows: (a) Group 0. Dial indicators having nominal bezel diameters from 1 in. (25 mm) up to and including 1% in. (35 mm). (b) Group I. Dial indicators having nominal bezel diameters from above 1/ in. (35 mm) up to and including 2 in. (50 mm). (c) Group 2. Dial indicators having nominal bezel diameters from above 2 in. (50 mm) up to and including 2% in. (60 mm). (d) Group 3. Dial indicators having nominal bezel diameters from above 2% in. (60 mm) up to and including 3 in. (76 mm). (e) Group 4. Dial indicators having nominal bezel diameters from above 3 in. (76 mm) up to and including 3%4 in. (95 mm). 6 DIAL GRADUATION VALUES All types of indicators shall have least graduations arranged either in four classes of inch values (i.c., 0.00005 in., 0.0001 in., 0.0005 in., and 0.001 in.) or in four classes of metric values (ie., 0.001 mm, 0.002 mm, 0.01 mm, and 0.02 mm). NOTE: Other values for graduations are sometimes used in industry. The supplier and the customer should agree on the determination of the maximum permissible error for dial indicators with graduations not mentioned in this Standard.ASME B89-1-10M pdf download.