ASME B29.10M:1997 pdf download HEAVY DUTY OFFSET SIDEBAR POWERTRANSMISSION ROLLERCHAINSAND SPROCKET TEETHI
1 NOMENCLATURE
A series of identical offset links in which the pinsarticulate inside the bushings and the rollers are freeto turn on the bushings. Pins and bushings are fixedin thcir respective sidebar holes [Fig. l, sketches (a)and (b)l.In addition to press fits, other types of locks suchas flats are sometimes used to prevent rotation of pinsand bushings in their respective sidebar holes.
2 GENERAL CHAIN DESIGNATORS
2.1 Dimensions for Chain Links
To assurc interchangeability of links as produccdby different makers of chain, standard maximum andminimum dimensions are adopted. They are not actualdimensions used in manufacturing, but limiting dimensions,maximum or minimum.requircd to assure thedesired interchangeability.
All dimensions are given in a decimal-inch systernThe metric equivalent dimensions are for reference only
2.2 Numbering System
The standard chain numbers were based upon theinch systemn. The first two, or left hand digits in thechain designation denote the number of in, in thcpitch. The last two, or right hand digits, denote thenumber of in. in the pin diameter.
2.3 Minimum Ultimate Tensile Strength(M.U.T.S.)
Minimum Ultimate Tensile Strength (M.U.T.S.),forchain covered by this Standard,is the minimum forceat which an unused undamaged chain could fail whensubjected to a single tensile loading test.
WARNING:
(a) The minimtum ultimate tensile strength is not a “workingload.”” The N.U.TS. greatly exceeds the maximum force thafmay be safely applied to the chain.
(b) Test Procedure: A tensile force is slowly applied, in uniaxialdirection, to the ends of the chain sammple.
(c) The tensile test is a destructive test. Eyen though the chainmay not yisibly fail when subjected to the *Minimum UltimateTensile Force,’ it will have been damaged and will be unfit forservice.
CAUTION: This load is beyond the yield strength of the chainand wouldrender the chain unsuitable for application. Forapplication guidance, consult manufacturers’ catalogs or theAmerican Chain Association Handbook,”Engincering SteelChains for Conveyors, Elevators and Drives.””
2.4 Measuring Load
The measuring load, in pounds (or kilonewtons) inTable 1,is the load under which a dry or lightlylubricated chain should be measured for length.
2.5 Strand Length Tolerance
The length of new chains subject to the specifiedmeasuring load must fall within the plus and minustolerances.Specific maximum and minimum strandlengths are shown in Table 1. for each chain.
3 CHAIN ASSEMBLY
See Fig. 2 and Tables 1, 2, and 3.
4 SPROCKET TOOTH FORM
See Fig. 3.
ASME B29.10M:1997 pdf download
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