ASME B18.8.200M:2000 pdf free download

ASME B18.8.200M:2000 pdf free download.COTTER PINS,HEADLESS CLEVIS PINS,AND HEADED CLEVIS PINS
(METRIC SERIES).
2.2 Head Design
A degree of leeway shall be permissible in the design of the head provided; however, (he minimum ouside diameter is maintained as specified in Table 2.
2.3 Length
2.3.1 Measurement. The length of’ pin, L, shall he measured, parallel to the axis of the pin, from the plane of contact of a gage with the head of the pin to the end of the prong or pin as depicted in the illustrations for the respective point types (see Fig. I). The gage shall have a hole equal to (he specified gage hole diameter within a tolerance of ±0.03 mm (see Table 2). The permissible break or rounding at the gaging edges of gaging holes shall not exceed 0.13 mm, The pin shall be inserted into the gage with linger pressure (force not to exceed 2.2 N).
Where pins having point types other than those illustrated herein are gaged, the length, L, shall be measured from the plane of contact of the gage with the end of the shortest prong.
2.3.2 Tolerance on Length. The tolerance on length of cotter pins shall be as specified in Table 1.
2.3.3 Preferred Lengths. Table 3 depicts the pret’erred sizes and lengths of pills that are normally available. Other sizes and lengths are produced, as required by the purchaser.
2.4 Prongs
2.4.1 Preferred Points. The prelrred point type shall he the extended prong — square cut or hammer lock design illustrated, as specified by the purchaser. Variations of the extended prong design and other types of points are also available1 subject to mutual agreement between the purchaser and manufacturer.
2.4.2 Prong Alignment. The ends of the pins shall not be open, and any gaps occurring between the prongs along the shank portion of pins beyond the end shall not exceed to 0.4 mm for pins 8 mm and over. The misalignment of prongs over the entire length of the shank shall not stop the pin from being inserted into the gaging hole.
2.5 Material and Test
2.5.1 Material. Low carbon steel shall be used unless otherwise specified as agreed upon between the manufacturer and purchaser.
2.5.2 Analysis. Chemical composition determ ma(ions shall he made iii accordance with methods given in ASTM E 30 when composition verification is specifIed.
2.5.3 Ductility. Each prong of the cotter pin shall be capable of withstanding being bent back upon itself once with no visible indication of fracture occurring at the point of bend.
2.5.4 Wire Section. Cotter pins are manufactured from approximately hall—round wire, and it is desirable that the flat side of the wire have a small degree of rounding at the edges rather than sharp corners.