ASME B18.8.2:2020 pdf download.Taper Pins, Dowel Pins, Straight Pins, Grooved Pins, and Spring Pins (Inch Series).
1.1.1ASME B18.8.2 covers the dimensional and general data for taper pins, dowel pins, straight pins. grooved pins, and spring pins. Also included are appendices providing supplementary information for the drilling of holes for taper pins and the testing of pins in double shear.
1.1.2 The inclusion of dimensional data in this Standard is not intended to imply that all the products described are stock production sizes. Consumers should consult with manufacturers concerning lists of stock production sizes.
1.2 Comparison With ISO Standards
Since these are inch fastener standards, there are no comparable ISO standards.
1.3 Dimensions
Unless otherwise specified, all dimensions are in inches. All dimensions shall apply before coating. Symbols specifying geometric characteristics are in accord with ASME
Y14.5.
1.4 Options
Where specified, options shall be at the discretion of the manufacturer unless otherwise agreed upon by the manufacturer and purchaser. Special materials, coatings, lubrication, or packaging requirements shall be specified by the purchaser.
1.5 TerminoLogy
For definitions of terminology not specified in this Standard, refer to ASME B18.12.
1.6 Referenced Standards
The following is a list of publications referenced in this Standard. The latest edition shall be used.
ASME B18.8.1, Clevis Pins and Cotter Pins (Inch Series)
ASME B18.12, Glossary of Terms for Mechanical Fasteners
ASME B18.18, Quality Assurance for Fasteners
ASME B 18.24, Part Identifying Number Code System for B18 Fastener Products
ASME B46.1, Surface Texture (Surface Roughness, Waviness, and Lay)
ASME Y14.5, Dimensioning and Tolerancing
Publisher: The American Society of Mechanical Engineers (ASME), Two Park Avenue, New York, NY 10016-5990 (www.asme.org)
17 ReLated Standards
Standards for clevis pins and cotter pins, inch series are published in ASME B18.8.1.
1.8 Part Identifying Number
For a Part Identifying Number, refer to ASME B 18.24.
2 GENERAL DATA FOR PINS
2.1 Types of Pins
2.1.1 Taper Pins. Taper pins shall have a uniform taper over the pin length with both ends crowned. Most sizes are supplied in both commercial and precision classes, the latter having generally tighter tolerances and being more closely controlled in manufacture. Dimensions for both classes are given in Table 3.1.1-1.
2.1.2 DoweL Pins. The following three varieties of dowel pins aie covered.
2.1.2.1 Hardened Ground Machine DoweL Pins. This variety of hardened dowel pins shall have ground cylindrical sides with one end pointed slightly to enter mating drive-fIt holes and the other end rounded or crowned for driving purposes. They are available in standard and oversize diameter series to satisfy initial and replacement requirements, respectively. Dimensions for both series are given in Table 4.1.1-1.
2.1.2.2 Hardened Ground Production Dowel Pins. This variety of hardened dowel pin shall have ground cylindrical sides with both ends rounded sufficiently to enable the pin to he pressed into drive-fit holes. fMmensions are given in Table 5.1.1-1.ASME B18.8.2 pdf download.