ASME B29.400 (2001)

Combination, "H"-Type Mill Chains, and Sprockets

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Annotation and contents

This Standard is a consolidation of two ASME standards, ASME B29.11M-1994 (Combination Chains, Attachments, and Sprocket Teeth) and ASME B29.14M- 1996 ("H" Type Mill Chains, Attachments, and Sprocket Teeth). These two Standards were combined into one because of the similarity of construction and the unusual applications for the two types of chains.

B29.11M. Combination chains are a series of block links having barrels to contact the sprocket teeth, alternating with links composed of sidebars and pins that articulate in the barrels of the block link. Pins are fixed against rotation in sidebar pitch holes by mechanical locks, such as flats, or by interference fits, or both. Assembly of pins may be from either side or alternated, at the manufacturer’s option. The main topics are (a) General chain proportions and designations; and (b) Attachments. There are also Tables for (a) General chain dimensions, Proof test load, Strand length, and Measuring load for checking chain lengths; (b) Maximum and minimum controlling dimensions for interchangeable chain links; (c) Chain clearance dimensions; and (d) A22, F2, G6, G19, K1 and K2 attachments.

B29.14. “H” type mill chains are a series of identical cast offset links having barrels to contact the sprocket teeth and pins that articulate in the barrels of the links. Pins are fixed in the sidebar pitch holes by either press fits and/or mechanical locks, such as flats, to prevent rotation of the pins in the sidebar pitch holes. The main topics are (a) general chain proportions and designations; (b) Attachments; (c) Sprocket tooth forms; and (d) Sprocket design data. There are also Tables for (a) General chain dimensions, Proof test load, Strand length, and Measuring load for checking chain lengths; (b) Minimum and maximum controlling dimensions for interchangeable chain links; (c) Chain clearance dimensions; (d) F4, H2, K1, K2, R1 and RR attachments; (d) Maximum eccentricity and face runout at root diameter; and (e) Sprocket factors.