Development of a Sprag Wear Test Procedure for Evaluating the Antiwear Performance of ATF's
A sprag clutch wear test procedure for evaluating the antiwear performance of automatic transmission fluids (ATF's) has been developed using a bench test apparatus. The wear test procedure provides an effective screening tool for incorporation into Automatic Transmission Service Fluid Qualifica...
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| Veröffentlicht in: | SAE transactions 1990-01, Vol.99 (4), p.928-941 |
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| container_title | SAE transactions |
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| creator | Caracciolo, Frank |
| description | A sprag clutch wear test procedure for evaluating the antiwear performance of automatic transmission fluids (ATF's) has been developed using a bench test apparatus. The wear test procedure provides an effective screening tool for incorporation into Automatic Transmission Service Fluid Qualification Test Procedures and Specifications. Two, widely-used ATF's provided reference data for wear comparisons and seven ATF candidates were evaluated for their antiwear performance. In addition, an additive-free, mineral-oil base stock was tested to highlight the need for fully-formulated fluids in automatic transmissions. Surface texture analysis complemented the weight-change data which was used as the primary wear criterion. Supplemental tests which examined sprag components at various intervals throughout the test period provided sufficient data to suggest a possible mechanism for wear initiation and propagation in the sprag clutch. |
| format | Article |
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The wear test procedure provides an effective screening tool for incorporation into Automatic Transmission Service Fluid Qualification Test Procedures and Specifications. Two, widely-used ATF's provided reference data for wear comparisons and seven ATF candidates were evaluated for their antiwear performance. In addition, an additive-free, mineral-oil base stock was tested to highlight the need for fully-formulated fluids in automatic transmissions. Surface texture analysis complemented the weight-change data which was used as the primary wear criterion. Supplemental tests which examined sprag components at various intervals throughout the test period provided sufficient data to suggest a possible mechanism for wear initiation and propagation in the sprag clutch.</description><identifier>ISSN: 0096-736X</identifier><identifier>EISSN: 2577-1531</identifier><language>eng</language><publisher>New York, NY: Society of Automotive Engineers, Inc</publisher><subject>Applied sciences ; Automatic transmissions ; Correlations ; Data acquisition ; Drives ; Durability ; Exact sciences and technology ; Fluid mechanics ; Mechanical engineering. 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The wear test procedure provides an effective screening tool for incorporation into Automatic Transmission Service Fluid Qualification Test Procedures and Specifications. Two, widely-used ATF's provided reference data for wear comparisons and seven ATF candidates were evaluated for their antiwear performance. In addition, an additive-free, mineral-oil base stock was tested to highlight the need for fully-formulated fluids in automatic transmissions. Surface texture analysis complemented the weight-change data which was used as the primary wear criterion. Supplemental tests which examined sprag components at various intervals throughout the test period provided sufficient data to suggest a possible mechanism for wear initiation and propagation in the sprag clutch.</description><subject>Applied sciences</subject><subject>Automatic transmissions</subject><subject>Correlations</subject><subject>Data acquisition</subject><subject>Drives</subject><subject>Durability</subject><subject>Exact sciences and technology</subject><subject>Fluid mechanics</subject><subject>Mechanical engineering. Machine design</subject><subject>Pumps</subject><subject>Surface roughness</subject><subject>Vehicles</subject><subject>Wear tests</subject><subject>Weight loss</subject><issn>0096-736X</issn><issn>2577-1531</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1990</creationdate><recordtype>article</recordtype><recordid>eNo9jkFLwzAYhoMoOKc_QchB8FRImqRJj2VuThg4sKDgYXxLvsyWri1JN_Hf2zHx9B6eh4f3gkxSpXXCleCXZMJYniVaZB_X5CbGmjHBlU4n5PMJj9h0_R7bgXaeAn3rA-zoO0KgJcaBrkNn0R0CUt8FOj9Cc4Chand0-EJatEP1fVLXGEa8h9biKVOUi8d4S648NBHv_nZKysW8nC2T1evzy6xYJbXiMvFia61Rjpmcma1kDBya1GntpZOZyBGM5GgynlvnrAENGUrDtdTCce9yMSUP52wP0ULjw3iiips-VHsIPxslWaqNHLX7s1bHoQv_WEplmEyN-AUzOllU</recordid><startdate>19900101</startdate><enddate>19900101</enddate><creator>Caracciolo, Frank</creator><general>Society of Automotive Engineers, Inc</general><general>Society of Automotive Engineers</general><scope>IQODW</scope></search><sort><creationdate>19900101</creationdate><title>Development of a Sprag Wear Test Procedure for Evaluating the Antiwear Performance of ATF's</title><author>Caracciolo, Frank</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-j514-f3bcc85d08908b400ade82d77f4d4639ea841e8619cddc8a7a6e4817473d1fd93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1990</creationdate><topic>Applied sciences</topic><topic>Automatic transmissions</topic><topic>Correlations</topic><topic>Data acquisition</topic><topic>Drives</topic><topic>Durability</topic><topic>Exact sciences and technology</topic><topic>Fluid mechanics</topic><topic>Mechanical engineering. Machine design</topic><topic>Pumps</topic><topic>Surface roughness</topic><topic>Vehicles</topic><topic>Wear tests</topic><topic>Weight loss</topic><toplevel>online_resources</toplevel><creatorcontrib>Caracciolo, Frank</creatorcontrib><collection>Pascal-Francis</collection><jtitle>SAE transactions</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Caracciolo, Frank</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Development of a Sprag Wear Test Procedure for Evaluating the Antiwear Performance of ATF's</atitle><jtitle>SAE transactions</jtitle><date>1990-01-01</date><risdate>1990</risdate><volume>99</volume><issue>4</issue><spage>928</spage><epage>941</epage><pages>928-941</pages><issn>0096-736X</issn><eissn>2577-1531</eissn><abstract>A sprag clutch wear test procedure for evaluating the antiwear performance of automatic transmission fluids (ATF's) has been developed using a bench test apparatus. The wear test procedure provides an effective screening tool for incorporation into Automatic Transmission Service Fluid Qualification Test Procedures and Specifications. Two, widely-used ATF's provided reference data for wear comparisons and seven ATF candidates were evaluated for their antiwear performance. In addition, an additive-free, mineral-oil base stock was tested to highlight the need for fully-formulated fluids in automatic transmissions. Surface texture analysis complemented the weight-change data which was used as the primary wear criterion. Supplemental tests which examined sprag components at various intervals throughout the test period provided sufficient data to suggest a possible mechanism for wear initiation and propagation in the sprag clutch.</abstract><cop>New York, NY</cop><pub>Society of Automotive Engineers, Inc</pub><tpages>14</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0096-736X |
| ispartof | SAE transactions, 1990-01, Vol.99 (4), p.928-941 |
| issn | 0096-736X 2577-1531 |
| language | eng |
| recordid | cdi_pascalfrancis_primary_5402784 |
| source | JSTOR Archive Collection A-Z Listing |
| subjects | Applied sciences Automatic transmissions Correlations Data acquisition Drives Durability Exact sciences and technology Fluid mechanics Mechanical engineering. Machine design Pumps Surface roughness Vehicles Wear tests Weight loss |
| title | Development of a Sprag Wear Test Procedure for Evaluating the Antiwear Performance of ATF's |
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