Abstract： ASME B18.8.2:2020 pdf download.Taper Pins,Dowel Pins,Straight Pins, Grooved Pins, and Spring Pins(lnch Series). 2.1.2.3 Unhardened Ground DoweL Pins. This variety of dowel pin shall have ground cylindrical sides with both ends chamfered. Di...

ASME B18.8.2:2020 pdf download.Taper Pins,Dowel Pins,Straight Pins, Grooved Pins, and Spring Pins(lnch Series).

2.1.2.3 Unhardened Ground DoweL Pins. This variety of dowel pin shall have ground cylindrical sides with both ends chamfered.

Dimensions are given in Table 6.11-1.

2.1.3 Straight Pins. Straight pins shall have unground, straight cylindrical sides with both ends detinitely diamlered on chamfered straight pins and with both ends having broken corners or being slightly chamfere(l on square end straight pins. Dimensions are

given in Table 7.1.1-1.

2.1.4 Grooved Pins. (irooved pins shall have unground, stiaiglzt tyliriditcal sides with three or moie swaged or estruded grooves

equally spaced around the periphery to displace material beyond the basic pin diameter. Both ends nit he pin are normally crowned

or chamfered. Several types of grooved pins are available, including headed versions, grooved drive studs, and grooved Thead cotter pins, to satisfy various design considerations. Upon installation, the material displaced by the grooves is forced hack into the

grooves and reacts against the sides of the hole to promote retention of the pin or stud. Dimensions oh the various types of groove pins are given in Tables 82.1-l through 8.2.2-2. grooved drive studs arc shown in Table 8.2.1 -2, and grooved T-head cotter pins

are covered in Tables 8.2.1-3 and 8.5.3-3.

2.1.5 Spring Pins. Spring pins shall have straight cylindrical sides with both ends chamfered. They are available in two basic

types, rellecting slotted construction and coiled construction, and the latter in standard (luty, heavy duty, and light duty series to suit various design requirements. Slotted-type spring pins having a single wall and coiled-type spring pins having multiple walls are formed or wrapped from strip stock to a diameter larger than basic and hardened in accordance with para. 9,6. Upon

installation the pin diameters cuntract and the spring reaction against the sides of the hole tends to retain the pin. Dimensions

of slotted-type spring pins and coiled-type spring pins arc given in Tables 9.4.4-1 and 94.4-2, respectively.

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