1、 ASABE/ISO 500-3:2014 FEB2015 Agricultural tractors Rear-mounted power take-off types 1, 2, 3 and 4 Part 3: Main PTO dimensions and spline dimensions, location of PTO American Society of Agricultural and Biological Engineers ASABE is a professional and technical organization, of members worldwide, w
2、ho are dedicated to advancement of engineering applicable to agricultural, food, and biological systems. ASABE Standards are consensus documents developed and adopted by the American Society of Agricultural and Biological Engineers to meet standardization needs within the scope of the Society; princ
3、ipally agricultural field equipment, farmstead equipment, structures, soil and water resource management, turf and landscape equipment, forest engineering, food and process engineering, electric power applications, plant and animal environment, and waste management. NOTE: ASABE Standards, Engineerin
4、g Practices, and Data are informational and advisory only. Their use by anyone engaged in industry or trade is entirely voluntary. The ASABE assumes no responsibility for results attributable to the application of ASABE Standards, Engineering Practices, and Data. Conformity does not ensure complianc
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6、, regardless of the revision approval date. Newly developed Standards, Engineering Practices and Data approved after July of 2005 are designated as “ASABE“. Standards designated as “ANSI“ are American National Standards as are all ISO adoptions published by ASABE. Adoption as an American National St
7、andard requires verification by ANSI that the requirements for due process, consensus, and other criteria for approval have been met by ASABE. Consensus is established when, in the judgment of the ANSI Board of Standards Review, substantial agreement has been reached by directly and materially affec
8、ted interests. Substantial agreement means much more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered, and that a concerted effort be made toward their resolution. CAUTION NOTICE: ASABE and ANSI standards may be revised or withdraw
9、n at any time. Additionally, procedures of ASABE require that action be taken periodically to reaffirm, revise, or withdraw each standard. Copyright American Society of Agricultural and Biological Engineers. All rights reserved. ASABE, 2950 Niles Road, St. Joseph, Ml 49085-9659, USA, phone 269-429-0
10、300, fax 269-429-3852, hqasabe.org ASABE/ISO 500-3:2014 FEB2015 Copyright American Society of Agricultural and Biological Engineers 1 ASABE /ISO 500-3:2014 FEB2015 Revision approved March 2015 as an American National Standard Agricultural tractors Rear-mounted power take-off types 1, 2, 3 and 4 Part
11、 3: Main PTO dimensions and spline dimensions, location of PTO These materials are subject to copyright claims of ISO and ASABE. No part of this publication may be reproduced in any form, including an electronic retrieval system, without the prior written permission of ASABE. All requests pertaining
12、 to ASABE/ISO 500-3:2014 MAR2015 standard should be submitted to ASABE. This standard was reviewed and approved for adoption by the ASABE Power and Machinery Tractors and Tractor Implement Interface/PTO Technical subcommittees, and has been formally approved. This adoption, along with the adoption w
13、ith deviations of ISO 500-1:2004/Cor. 1:2005, ISO 8759-1:1998, and ISO 8759-2:1998 and the identical adoptions of ISO 500-2:2004 replaced ASAE S203.14 and ASAE S513. Rear mounted PTOs are addressed in the ISO 500 adoptions, front mounted in the ISO 8759 adoptions. Adopted by ASABE December 2010; app
14、roved as an American National Standard January 2011, replaced with identical adoption of ISO 500-3:2014 February 2015; approved by ANSI March 2015. Keywords: Dimensions, Location, Master shield, Power take-off, Safety, Spline, Tractors 0 Foreword 0.1 ASABE/ISO 500-3:2014, Agricultural tractors Rear-
15、mounted power take-off types 1, 2, 3 and 4 Part 3: Main PTO dimensions and spline dimensions, location of PTO, is an adoption without modification of the identically titled ISO standard ISO 500-3:2014, Agricultural tractors Rear-mounted power take-off types 1, 2, 3 and 4 Part 3: Main PTO dimensions
16、and spline dimensions, location of PTO. 0.2 ASABE/ISO 500-3:2014 Specifies manufacturing requirements for, and the location of, rear-mounted power take-offs (PTOs) of types 1, 2, 3 and 4 on agricultural tractors. 0.3 One normative reference is listed in ISO 500-3:2014. This reference has been review
17、ed and accepted as part of the adoption of ASABE/ISO 500-3:2014. 0.4 This standard has been approved as an American National Standard by ANSI (American National Standards Institute). The original content of ISO 500 and ISO 8759 was based on ASAE S203. Text of ISO 500-3:2014; Agricultural tractors Re
18、ar-mounted power take-off types 1, 2, 3 and 4 Part 3: Main PTO dimensions and spline dimensions, location of PTO, follows. 1 Scope 1.1 This part of ISO 500 specifies manufacturing requirements for, and the location of, rear-mounted power take-offs (PTOs) of types 1, 2, 3 and 4 on agricultural tracto
19、rs. ASABE/ISO 500-3:2014 FEB2015 Copyright American Society of Agricultural and Biological Engineers 2 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition ci
20、ted applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 6508 (all parts), Metallic materials Rockwell hardness test 3 PTO location The location of the PTO axis shall lie within the shaded rectangle shown in Figure 1 and in accordance
21、 with Table 1, parallel to the longitudinal axis of the tractor and should be parallel to the ground within 3. The values of the dimension h are for normal agricultural applications (see Figure 1 and Table 1). On tractors especially designed for high ground clearance, such as working in standing veg
22、etable crops or sugar cane, hmax, can exceed the given values. On agricultural tractors designed for low ground clearance, such as lawn mowing or ground care which require a low centre of gravity, for narrow-track tractors, and for track-laying tractors, hmin, can be less than the given values. For
23、tractors that can accommodate multiple PTO types, hmaxshall be the value for the largest PTO type specified for the tractor. Figure 1 PTO location ASABE/ISO 500-3:2014 FEB2015 Copyright American Society of Agricultural and Biological Engineers 3 Table 1 PTO location Dimensions in millimetres PTO Typ
24、e hminhmax1 480 8002 530 9003 600 1 000 4 600 0004 Manufacturing requirements Main PTO and spline dimensions The dimensions of the rear PTO on agricultural tractors and the mating part of the PTO drive shaft shall comply with: Figure 2 and Table 2, for PTO dimensions; Figure 3 and Table 3, for exter
25、nal, straight-sided spline dimensions Type 1; Figure 4 and Table 4, for internal straight-sided spline dimensions Type 1; Figure 5 and Table 5, for external, involute spline dimensions Type 2; Figure 6 and Table 6, for internal, involute spline dimensions Type 2; Figure 7 and Table 7, for external,
26、involute spline dimensions Type 3; Figure 8 and Table 8, for internal, involute spline dimensions Type 3; Figure 9 and Table 9, for external, involute spline dimensions Type 4; Figure 10 and Table 10, for internal, involute spline dimensions Type 4. The hardened portion of the splines shall have a m
27、inimum surface hardness of 48 HRC when tested in accordance with ISO 6508 (all parts). NOTE: For general spline information, including inspection, see ISO 4156 (all parts). ASABE/ISO 500-3:2014 FEB2015 Copyright American Society of Agricultural and Biological Engineers 4 Figure 2 PTO dimensions Tabl
28、e 2 PTO dimensions Dimensions in millimetres Dimension Type 1 Type 2 Type 3 Type 4 A Groove to end of shaft 38 0,8 25,5 0,8 38 0,8 50 0,8 B Effective spline length and hardened portion 76 64 89 100 C Chamfer 106+105+106+108+D Chamfer angle 30 3 30 3 30 3 30 3 E ID of groove 29,40 0,1 29,40 0,1 37,25
29、 0,1 48 0,1 R Radius of groove 6,8 0,25 6,8 0,25 8,4 0,25 10,4 0,25 ASABE/ISO 500-3:2014 FEB2015 Copyright American Society of Agricultural and Biological Engineers 5 Figure 3 External, straight-sided spline dimensions Type 1 Table 3 External, straight-sided spline dimensions Type 1 Dimensions in mi
30、llimetres Dimension Symbol Value Number of teeth Z 6 Major diameter DEE 012,087,34Form diameter DFE 30,00 Minor diameter DIE 010,000,29Tooth thickness max. eff. SVmax 8,64 Tooth thickness max. act. REF Smax (8,60) Tooth thickness min. act. Smin 8,51 Allowed from variations Composite GO gage has prio
31、rity Total profile variation FF 0,020 Total lead variation FB 0,015 Total index variation FP 0,040 ASABE/ISO 500-3:2014 FEB2015 Copyright American Society of Agricultural and Biological Engineers 6 Figure 4 Internal, straight-sided spline dimensions Type 1 Table 4 Internal, straight-sided spline dim
32、ensions Type 1 Dimensions in millimetres Dimension Symbol Value Number of teeth Z 6 Major diameter DEI 005,095,34Form diameter DFI 34.50 Minor diameter DII 015,080,29Space width max. act. Emax 8,76 Space width min. act. REF Emin (8,71) Space width min. eff. EVmin 8,69 Allowed from variation Composit
33、e GO gage has priority Total profile variation FF 0,020 Total lead variation FB 0,015 Total index variation FP 0,040 ASABE/ISO 500-3:2014 FEB2015 Copyright American Society of Agricultural and Biological Engineers 7 Figure 5 External, involute spline dimensions Type 2 Table 5 External, involute spli
34、ne dimensions Type 2 Dimension in millimetres Dimension Symbol Value For Alternative Imperial Pin Size Number of teeth Z 21 - Module M 1,587 5 - Pressure angle 30Pitch diameter D 33,338 - Base diameter DB 28,871 1 - Major diameter DEE 0025,0874,34- Form diameter DFE 31,65 - Minor diameter DIE 0025,0
35、100,31- Tooth thickness max. eff. SVmax 2,406 - Tooth thickness max. act. REF Smax (2,369)Tooth thickness min. act. Smin 2,306 - Pin diameter DRE 3,50 3,048 Dim. over pins max. REF MREmax (39,00) (37,759)Dim. over pins min. MREmin 38,906 37,662Allowed form variations Composite GO gage has priority T
36、otal profile variation FF0,020 - Total lead variation FB0,013Total index variation FP0,040 - Concentricity DEEto D 0,03ASABE/ISO 500-3:2014 FEB2015 Copyright American Society of Agricultural and Biological Engineers 8 Figure 6 Internal, involute spline dimensions Type 2 Table 6 Internal, involute sp
37、line dimensions Type 2 Dimension in millimetres Dimension Symbol Value For Alternative Imperial Pin Size Number of teeth Z 21 - Module M 1,587 5 - Pressure angle 30 - Pitch diameter D 33,338Base diameter DB 28,871 1 - Major diameter DEI 036,00925,34+- Form diameter DFI 34,62 - Minor diameter DII 150
38、,00750,31+- Space width max. act. Emax 2,565 - Space width min. act. REF Emin (2,520)Space width min. eff. EVmin 2,494 - Pin diameter/flattened DRI 2,75/2,60 2,743/2,60 Dim. between pins max. MRImax 29,380 29,403Dim. betw. pins min. REF MRImin (29,290) (29,315) Allowed form variations Composite GO g
39、age has priority Total profile variation FF0,020 - Total lead variation FB0,013Total index variation FP0,040 - Concentricity DEEto D 0,02ASABE/ISO 500-3:2014 FEB2015 Copyright American Society of Agricultural and Biological Engineers 9 Figure 7 External, involute spline dimensions Type 3 Table 7 Ext
40、ernal involute spline dimensions Type 3 Dimension in millimetres Dimension Symbol Value For Alternative Imperial Pin Size Number of teeth Z 20 - Module M 2,116 7 - Pressure angle 30Pitch diameter D 42,333 - Base diameter DB 36,661 7 - Major diameter DEE 0025,0425,44- Form diameter DFE 40,10 - Minor
41、diameter DIE 0250,0210,39- Tooth thickness max. eff. SVmax 3,237 - Tooth thickness max. act. REF Smax (3,200)Tooth thickness min. act. Smin 3,137 - Pin diameter DRE 4,000 4,064 Dim. over pins max. REF MREmax (48,239) (48,418)Dim. Over pins min. MREmin (48,142) 48,321 Allowed form variations Composit
42、e GO gage has priority Total profile variation FF0,020 - Total lead variation FB0,013 Total index variation FP0,040 - Concentricity DEEto D 0,03ASABE/ISO 500-3:2014 FEB2015 Copyright American Society of Agricultural and Biological Engineers 10 Figure 8 Internal, involute spline dimensions Type 3 Tab
43、le 8 Internal, involute spline dimensions Type 3 Dimension in millimetres Dimension Symbol Value For Alternative Imperial Pin Size Number of teeth Z 20 - Module M 2,116 7 - Pressure angle 30 - Pitch diameter D 42,333Base diameter DB 36,661 7 - Major diameter DEI 038,00450,44+- Form diameter DFI 44,0
44、44 - Minor diameter DII 150,00200,40+- Space width max. act. Emax 3,396 - Space width min. act. REF Emin (3,351)Space width min. eff. EVmin 3,325 - Pin diameter DRI 3,75 3,658 Dim. between pins max. MRImax 36,850 37,153Dim. betw. pins min. REF MRImin (36,758) (37,064) Allowed form variations Composi
45、te GO gage has priority Total profile variation FF0,020 - Total lead variation FB0,013Total index variation FP0,040 - Concentricity DEIto D 0,02ASABE/ISO 500-3:2014 FEB2015 Copyright American Society of Agricultural and Biological Engineers 11 Figure 9 External, involute spline dimensions Type 4 Tab
46、le 9 External, involute spline dimensions Type 4 Dimension in millimetres Dimension Symbol Value For Alternative Imperial Pin Size Number of teeth Z 22 - Module M 2,50Pressure angle 30Pitch diameter D 55,000 - Base diameter DB 47,631 4 - Major diameter DEE 0025050057,- Form diameter DFE 52,26 - Mino
47、r diameter DIE 025001851,- Tooth thickness max. eff. SVmax 3,842 - Tooth thickness act. REF. Smax (3,805)Tooth thickness min. act. Smin 3,742 - Pin diameter DRE 5,300 5,309 Dim. over pins max.REF MREmax (63,618) (63,641)Dim. over pins min MREmin 63,523 63,548Allowed form variations Composite GO gage
48、 has priority Total profile variation FF0,020 - Total lead variation FB0,013Total index variation FP0,040 - Concentricity DEEto D 0,03ASABE/ISO 500-3:2014 FEB2015 Copyright American Society of Agricultural and Biological Engineers 12 Figure 10 External, involute spline dimensions Type 4 Table 10 Internal, involute spline dimensions Type 4 Dimension in millimetres Dimension Symbol Value For Alternative Imperial Pin Size Number of teeth Z 22 - Module M 2,500Pressure angle 30 - Pitch diameter D 55,000Base diameter DB 47,631 4 - Major diameter DEI 0380052557 ,+- Form diameter DFI
