標準號：ASME B29.300-1998
中文標準名稱：農用可拆卸和斜栓節鏈附件和供片輪
英文標準名稱：Agricultural, Detachable, and Pintle Chains, Attachments, and Sprockets Incorporating ASME B29.6, B29.19, and B29.25; Addenda A:2004 [Superseded: ASME B29.6M, ASME B29.6M] [Replaced: ASME B29.25M, ASME B29.25M]
標準類型：B91
發布日期：1998/1/1 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：B91
國際標準分類號：21.220.10
適用范圍：On August 26,1998, the B29 Standard committee agreed via letter ballot to consolidate and revise the following three chain standards: ASME B29.6, Steel Detachable Link Chains, Attachments, and Sprockets; ASME B29.19, Agricultural Roller Chains, Attachments, and Sprockets; and ASME B29.25, Open Barrel Steel Pintle-Type Conveyor Chains, Attachments, and Sprockets. The new Standard was designated ASME B29.300, and entitled Agricultural, Detachable, and Pintle Chains, Attachments, and Sprockets. The 1998 revisions of B29.6, B29.19, and B29.25 have been designed to integrate the agricultural type chains found in each of these three Standards. B29.6 - Steel Detachable Link Chains, Attachments, and Sprockets This Standard establishes, in the main, only those dimensions that will provide for interchangeability of the chains in use without restricting the chain manufacturers in their overall design. The 1983 revision included the sprocket dimension controlling the surfaces that must properly engage or clear the chain. The 1994 edition updated the Standard to the current ANSI standards format and symbols covering chains. Number 45 and No. 67 were deleted from the Standard since they are no longer manufactured. The definition of Minimum Ultimate Tensile Strength (M.U.T.S.) was also updated. In this edition, the symbols and sprocket information sections were revised to provide consistency throughout the consolidated B29.300 Standard. B29.19 - Agricultural Roller Chains, Attachments, and Sprockets The Standard establishes essentially only those dimensions that will provide for interchangeability of the chains in use without restricting the chain manufacturers in their overall designs. The B29 Committee agrees that the CA550 and CA620 chains may be used on No. 55 and No. 62 detachable chain sprockets, respectively; however, the sprocket data included in this Standard is for sprockets designed specifically for CA550 and CA620 chains. The difference in sprocket design is necessary because of the difference in roller diameters. The 1993 revision included updating to the current ANSI standards format and symbols covering chains and sprockets. Minimum Ultimate Tensile Strength (M.U.T.S.) was redefined. The 1996 revision changed the name of the Standard from A and CA550 and 620 Roller Chains, Attachments, and Sprockets to Agricultural Roller Chains, Attachments, and Sprockets. Also, two new chains for both drive series (A555 and A557) and conveyor series (CA555 and CA557), as well as several associated attachments, were added to the Standard. In this edition, the sprocket tooth form was modified to be identical with the form used in the other two chains. B29.25 - Open Barrel Steel Pintle-Type Conveyor Chains, Attachments, and Sprockets The open barrel steel pintle chain was originally developed in 1962 for the agricultural implement industry. The original sizes were developed to run on the same sprockets as their detachable chain counterparts of ANSI B29.6. In later years, sizes were developed to accommodate industrial applications as well. The steel pintle chain is primarily used as a conveyor chain and, in limited use, as a power transmission chain. Typical conveyor speeds are under 300 ft/min. Consult manufacturers for details. The 1994 revision incorporated a restatement of the definition of Minimum Ultimate Tensile Strength (M.U.T.S.), and an addition of footnotes in Tables 3 and 4 regarding hole sizes in certain attachments. In this edition, Tables 1 and 2 were combined for simplicity, and the sprocket tooth form was modified to be identical with the form used for the other two chains.