0000016010 00000 n API 686 PRACTICES Shaft Alignment - Free download as PDF File (.pdf), Text File (.txt) or read online for free. In its first 100 years, API … They should be used only if no other tolerances … Check … 0000023556 00000 n %PDF-1.2 %���� Shaft Alignment Tolerances The coupling manufacturer is generally concerned with their product effectively transmitting energy from one shaft to another. 0000029139 00000 n DOWNLOAD PDF . 0000025471 00000 n CPKNO. Published: 12-01-2009. 0000009190 00000 n piping loads are much more complex. Prueftechnik and should not be exceeded. 0000003166 00000 n (Note: If a manufacturer of a machine or ... For spacer shafts… Uploaded by. 1.1 Principles. (Note: If a manufacturer of a machine or coupling require tighter alignment tolerances, those should be used) Consider all values listed to be the maximum allowable deviation from the alignment … 686 First Edition, February 1996 Chapt. 0000001681 00000 n Table of Contents ... Chapter 7 - Shaft Alignment … 0000025492 00000 n It is a major cause of repeatability problems in shaft alignment measurements. 0000028069 00000 n 0000030625 00000 n 0000005101 00000 n Use a 2 mil (.002") shim or feeler gauge to check the gap under the foot. Changes in the temperature of machines from off line to running can have a significant impact on the shaft alignment. 0000015211 00000 n 0000011976 00000 n Understanding API Standards for Mounting Rotating Equipment. The shaft alignment … Check 2– If possible put a dial on any shafts and perform a quick run out check to ensure nothing was bent during shipment. Diagram of the relationship between the pitch diameter and the machining tolerance … 1 General. 0000010328 00000 n PIP REIE686A Recommended Practice for Machinery Installation and Installation Design March 2012 ... – PIP REIE686/API RP686 - Recommended Practice for Machinery … J���}!C��B]5A��4��xx��QS��nw_A'����2����ا#Ă����:��'4�]��CHڹ���w��j��a�ї? Correct any foot with more than two mils of softness. 0000012836 00000 n ���n>��4j@���,&�Op��q��֑F��A��5�/:���%�}����4���SSw��j�X��h��\�z���? 0000009212 00000 n 0000017559 00000 n The objective of the standard is to ensure a robust installation with minimal softfoot of the mounted equipment. API-686 PRACTICES shaft-alignment 7. In addition to alignment quality and … Publisher: American Petroleum Institute. Status of the publication can be ascertained from the API Standards Department, telephone (202) 682-8000. Measure, diagnose, and correct Soft Foot with the assistance of the laser system and feeler gauges. ?��{�wU�$�+�����1tu���,��z�1�]~�h\#�a�*��g����F����J,�"�J��� h��Xmo�8�+��jE��8�j% 0000019780 00000 n No, RP 686 … ... Save API 686 PRACTICES Shaft Alignment For Later. i) As it relates to alignment the specification prohibits introducing strain into the piping or equipment by forcing piping into alignment. As per the code if the vertical and horizontal deviation of piping flange and rotary equipment flange centerline is within 1.5 mm and parallelism (rotation) is within 0.0573 degrees then the alignment … The shaft centerline of a moveable machine—typically a motor—is aligned to the shaft centerline of a machine that generally is not moved, such as a pump. Coupling Alignment Fundamentals Rexnord, 5555 S. Moorland Rd., New Berlin, WI 53151-7953 538-214 Telephone: 262-796-4060 Fax: 262-796-4064 February 2014 August 2013 To take an example, a machine running at 6000 rpm with a 300mm spacer shaft installed would allow a maximum offset of:- (0.03mm) X 300/100 = 0.09mm (or 9/100mm) at either coupling at the ends of the spacer shaft… Edgar Enrique Sarmiento Riaño. Soft foot is a common issue when aligning rotating equipment. Attachment 3, ASME B31.8, Gas Transmission & Distribution Piping Alignment and Acceptance Criteria 2.1.5 When radiography or other NDE methods are employed, the procedure shall meet the requirements of API … The American Petroleum Institute (API) documented the proper design and use of small volume provers in 1988: “Manual of Petroleum Measurement Standards,” Chapter 4, Proving Systems, Section 3, Small … 0000007603 00000 n 0000001384 00000 n 2011/2012 ¿Te resulta útil? API 686 : 2009. Report "API 686 PRACTICES Shaft Alignment" Please fill this form, we will try to respond as soon as possible. [(4.4-1.8)/20 = 0.13] open at the top of the coupling. h�b```g``�����01�A�D�b�,� � API was formed in 1919 as a standards-setting organization and is the global leader in convening subject matter experts across segments to establish, maintain, and distribute consensus standards for the oil and gas industry. API RP 686. It is about aligning shaft centerlines. This operating manual is valid for the type series and variants indicated on the front cover. 0000022468 00000 n The sensors may be mounted on the shafts … By: stevechwyl. Email. Current. Set up laser alignment system. 7 of 76. m�}Ĉ�`8lp�i*�q���@s�|Fo>�������ޢ�_�"M8l[i7L5KpB����Z�Mh�7j��^��|l�hv�)v`�4��J{Ė1}Ȗ Universidad Autónoma de Madrid. 0000013950 00000 n Save Api 686-96 For Later. 0000007330 00000 n SET UP THE SHAFT HOG Mount the stationary sensor on the stationary shaft. %%EOF The alignment in this article is typically referred to as coupling alignment. Description Download API 686 PRACTICES Shaft Alignment Comments. PRE ALIGNMENT: FINAL SOFT FOOT Loosen one bolt at a time. 0000018650 00000 n Available Formats: PDF - English - DRM, Hardcopy - English More Info on product formats. 0000006229 00000 n 0000004823 00000 n 108 0 obj <>stream Share. For spacer shafts, the table gives the maximum allowable offset for each 100 mm or inch of spacer shaft length. 80 0 obj <>/Filter/FlateDecode/ID[<229D44E6CEACFBE578C6046673E67771>]/Index[54 55]/Info 53 0 R/Length 116/Prev 739535/Root 55 0 R/Size 109/Type/XRef/W[1 3 1]>>stream As stated in API … Share & Embed "API 686 PRACTICES Shaft Alignment… … 0000003719 00000 n Fundamentos de Física II (16386) Año académico. API 686 Ingles 1 Edicion. 0000011207 00000 n The manual describes the proper and safe use of … Embed. It should be recognized that shaft runout and coupling surface runout do not affect shaft centerline alignment when both shafts are turned when making alignment … Chapter 7 - Shaft Alignment ..... 29. 0000015988 00000 n 1 1. Measure and correct alignment of the machine to achieve the final alignment to the required targets within tolerances. A one-time extension of up to two years may be added to this review cycle. 0000010307 00000 n Save API RP 686.pdf For Later. Submit Close. Re-tighten the bolt. nasser.saldana. Piping is under pressure and when installed out of alignment it is also under bending loading, which subjects the material to sheer stresses. H��Wێ�6��ѧX+���Է�m�?�kѲZ]\]�l��ë(����X�W���̜��?�6F��Dp�v�n0���c�� 0000006207 00000 n … While it is safe to say the coupling will not fail if aligned to their tolerances, it is not safe to say that bearing, seal, shaft… Compartir. 0000022447 00000 n Download API 686 Ingles 1 Edicion. A catalog of API … apuntes. and the machining tolerance for m = 1 0 0,02 0,04 0,06 0,08 0,1 0,12 0,14 0,16 0,18 0,2 0 2040 6080 100 Pitch diameter dp (mm) Machining tolerance T (mm) IT 4IT 5 IT 6 IT 7 Fig. With a load-on-pad design, Figure 1 the shaft is free to laterally within bearing clearance, and alignment data is difficult to obtain without temporary bearing shims to stabilize the sham With a load-between-pad design, Figure 1 (B), the shaft remains stable during the alignment … 0000003439 00000 n 1 Introduction and Safety. A summary of the guidance in regards to pipe strain is as follows: 1.1 ASME B31.3 PROCESS PIPING Section 335 describes the requirements for assembly and erecting. RE: Minimum Shims requirement for Pumps as per API-686 TenPenny (Mechanical) 7 Dec 12 07:49 In the old days, it was 'good' practice to put 1/8" shims under the pump and motor so that proper field alignment … 0000012815 00000 n %PDF-1.5 %���� ��2�d[]�{�� %�YD݁��֜_� /5�ɔ�*+� �٫��F����?��3��Ϲ-�ų� 4�8ˉK��z0@�iLE����z�p6=M?i��b(�5A�P_�፾�]������Rd���v�hXym[]T���e��{殫��9ƊH�推O#"uҳӵ|�jz2|��Xs��[ �m`{a�Ֆ���F�NC������C�z �5���L��Յ�o;�F�1x�����,՗N��R3�� j�����k%\Q�N6�}n�I�u����E��)%�Ho��;�AK���E�!c�Zx�)0���8%�����Zۓ��i[G"j�/��%&�p�V��?�0���6at��Sߠ��Q����_e�K��� )��] 0000023534 00000 n Asignatura. 0000017538 00000 n Api 686-96. 0000020893 00000 n 0000002065 00000 n Download Api 686-96. endstream endobj startxref 51324939 API 686 shaft alignment. Save API 686 … The … 0000026562 00000 n 0000015232 00000 n Figure 2: Shaft ruout tolerances, ANSI/ASA S2.75-2017/Part 1 The shaft runout tolerances in Table 2 above are provided as a guidance. API standards cite criteria for flatness and coplanar tolerances of the mounting surfaces for rotating equipment. API 686 PRACTICES Shaft Alignment. �=@��ypY�3����)�m�g�ts�t���+:���Bw0���(�~ e�zpHK �XċA�ASA‡�����1 fi�$nƲ�L�N5^ �2/����I����v9�{t�3�:Z� �k\�:K����)�f*w���q�(C�2p��@��� &I4� 0000018629 00000 n �߇,���d�#s?%�s�6‡5� X�qd�/���b�[D�61�������. Dimension and tolerance symbols Shaft and housing fits Normal tolerances Chamfer dimensions Radial internal clearance Axial internal clearance Reduction in radial internal clearance FAG rolling bearing … Machinery Alignment Tolerance Tables The suggested alignment tolerances shown here are general values based upon experience and general industry standards and should not be exceeded. Uploaded by. 6 0 obj << /Linearized 1 /O 8 /H [ 1493 209 ] /L 32824 /E 30877 /N 1 /T 32587 >> endobj xref 6 52 0000000016 00000 n trailer << /Size 58 /Info 1 0 R /Root 7 0 R /Prev 32578 /ID[<519d6f270157c673eaf9368774a43203><2fb94de6048463e67bd3597d377fdff1>] >> startxref 0 %%EOF 7 0 obj << /Pages 2 0 R /Type /Catalog /DefaultGray 3 0 R /DefaultRGB 4 0 R /Metadata 5 0 R >> endobj 56 0 obj << /S 36 /Filter /FlateDecode /Length 57 0 R >> stream 0000029161 00000 n Generally, API standards are reviewed and revised, reaffirmed, or withdrawn at least every five years. �0A�}�!\�IJ���;*4�U��I�H4�G3��؟;tT�B~+e���f�a�|�;����P+MAv�����y�W�˖P���{��e�z�#뮜� �;Np��Qd�!�����ې�p�"sS���У�{�JU&n=�q� ��]����bQ:)���Ժ��O�g�>����[�� � ^Q���nyBr8OS� � American Petroleum Institute code API RP 686 provides the data for acceptable deviation from the ideal perfect alignment. H�b``0b``�� �:� � b(f`e�ֺ�N���!�c;�g~��Q�8���`�~����ÈAiC�ۿ-�j�"H4WBb0@� �C� endstream endobj 57 0 obj 104 endobj 8 0 obj << /Type /Page /Parent 2 0 R /Resources << /Font << /F0 12 0 R /F1 9 0 R /F2 14 0 R /F3 16 0 R /F4 28 0 R >> /XObject << /im1 38 0 R /im2 42 0 R /im3 46 0 R /im4 50 0 R /im5 54 0 R >> /ProcSet 55 0 R >> /Contents [ 18 0 R 20 0 R 22 0 R 24 0 R 26 0 R 30 0 R 32 0 R 34 0 R ] /MediaBox [ 0 0 612 792 ] /CropBox [ 0 0 612 792 ] /Rotate 0 >> endobj 9 0 obj << /Type /Font /Subtype /TrueType /Name /F1 /BaseFont /Arial /FirstChar 31 /LastChar 255 /Widths [ 750 278 278 355 556 556 889 667 191 333 333 389 584 278 333 278 278 556 556 556 556 556 556 556 556 556 556 278 278 584 584 584 556 1015 667 667 722 722 667 611 778 722 278 500 667 556 833 722 778 667 778 722 667 611 722 667 944 667 667 611 278 278 278 469 556 333 556 556 500 556 556 278 556 556 222 222 500 222 833 556 556 556 556 333 500 278 556 500 722 500 500 500 334 260 334 584 750 556 750 222 556 333 1000 556 556 333 1000 667 333 1000 750 750 750 750 222 222 333 333 350 556 1000 333 1000 500 333 944 750 750 667 278 333 556 556 556 556 260 556 333 737 370 556 584 333 737 552 400 549 333 333 333 576 537 278 333 333 365 556 834 834 834 611 667 667 667 667 667 667 1000 722 667 667 667 667 278 278 278 278 722 722 778 778 778 778 778 584 778 722 722 722 722 667 667 611 556 556 556 556 556 556 889 500 556 556 556 556 278 278 278 278 556 556 556 556 556 556 556 549 611 556 556 556 556 500 556 500 ] /Encoding /WinAnsiEncoding /FontDescriptor 10 0 R >> endobj 10 0 obj << /Type /FontDescriptor /FontName /Arial /Flags 32 /FontBBox [ -250 -231 1292 1000 ] /MissingWidth 769 /StemV 84 /StemH 84 /ItalicAngle 0 /CapHeight 1000 /XHeight 700 /Ascent 1000 /Descent -231 /Leading 231 /MaxWidth 1077 /AvgWidth 462 >> endobj 11 0 obj << /Type /FontDescriptor /FontName /Arial,Bold /Flags 16416 /FontBBox [ -250 -250 1200 958 ] /MissingWidth 750 /StemV 146 /StemH 146 /ItalicAngle 0 /CapHeight 958 /XHeight 670 /Ascent 958 /Descent -250 /Leading 250 /MaxWidth 1000 /AvgWidth 458 >> endobj 12 0 obj << /Type /Font /Subtype /TrueType /Name /F0 /BaseFont /Arial,Bold /FirstChar 31 /LastChar 255 /Widths [ 750 278 333 474 556 556 889 722 238 333 333 389 584 278 333 278 278 556 556 556 556 556 556 556 556 556 556 333 333 584 584 584 611 975 722 722 722 722 667 611 778 722 278 556 722 611 833 722 778 667 778 722 667 611 722 667 944 667 667 611 333 278 333 584 556 333 556 611 556 611 556 333 611 611 278 278 556 278 889 611 611 611 611 389 556 333 611 556 778 556 556 500 389 280 389 584 750 556 750 278 556 500 1000 556 556 333 1000 667 333 667 611 611 611 750 278 278 500 500 350 556 1000 333 1000 556 333 556 479 500 500 278 333 333 611 556 722 280 556 333 737 667 556 584 333 737 611 400 549 333 278 333 576 556 278 333 556 556 556 611 333 385 500 722 722 722 722 722 611 722 722 722 667 667 667 667 278 278 722 722 722 722 778 778 778 778 584 722 722 722 722 722 667 611 611 389 556 556 556 556 278 556 556 556 556 556 556 556 278 278 719 611 611 611 611 611 611 611 549 389 611 611 611 611 556 333 333 ] /Encoding /WinAnsiEncoding /FontDescriptor 11 0 R >> endobj 13 0 obj << /Type /FontDescriptor /FontName /TimesNewRoman /Flags 34 /FontBBox [ -250 -250 1200 938 ] /MissingWidth 750 /StemV 68 /StemH 68 /ItalicAngle 0 /CapHeight 938 /XHeight 656 /Ascent 938 /Descent -250 /Leading 251 /MaxWidth 1000 /AvgWidth 375 >> endobj 14 0 obj << /Type /Font /Subtype /TrueType /Name /F2 /BaseFont /TimesNewRoman /FirstChar 31 /LastChar 255 /Widths [ 778 250 333 408 500 500 833 778 180 333 333 500 564 250 333 250 278 500 500 500 500 500 500 500 500 500 500 278 278 564 564 564 444 921 722 667 667 722 611 556 722 722 333 389 722 611 889 722 722 556 722 667 556 611 722 722 944 722 722 611 333 278 333 469 500 333 444 500 444 500 444 333 500 500 278 278 500 278 778 500 500 500 500 333 389 278 500 500 722 500 500 444 480 200 480 541 778 500 778 333 500 444 1000 500 500 333 1000 556 333 556 611 611 611 778 333 333 444 444 350 500 1000 333 980 389 333 389 427 444 444 250 333 333 611 500 722 200 500 333 760 556 500 564 333 760 611 400 549 333 278 333 576 453 250 333 444 389 500 611 333 406 444 667 722 722 722 722 611 667 667 667 611 611 611 611 333 333 722 722 722 722 722 722 722 722 564 667 722 722 722 722 722 611 500 333 444 444 444 444 278 444 444 444 444 444 444 444 278 278 646 500 500 500 500 500 500 500 549 333 500 500 500 500 500 278 333 ] /Encoding /WinAnsiEncoding /FontDescriptor 13 0 R >> endobj 15 0 obj 1509 endobj 16 0 obj << /Type /Font /Subtype /TrueType /Name /F3 /BaseFont /Garamond /FirstChar 31 /LastChar 255 /Widths [ 750 250 219 406 667 448 823 729 177 292 292 427 667 219 313 219 500 469 469 469 469 469 469 469 469 469 469 219 219 667 667 667 365 917 677 615 635 771 656 563 771 760 354 333 740 573 833 771 781 563 771 625 479 615 708 677 885 698 656 656 271 500 271 500 500 333 406 510 417 500 417 323 448 510 229 229 469 229 771 510 510 510 490 333 365 292 490 469 667 458 417 427 479 500 479 667 750 469 750 219 615 448 1000 427 427 333 1021 479 198 938 750 750 750 750 219 219 448 448 354 500 1000 333 979 365 198 698 750 750 656 250 219 417 573 677 656 500 427 333 760 260 365 667 313 760 500 396 667 313 313 333 500 448 219 333 313 333 365 813 813 823 365 677 677 677 677 677 677 854 635 656 656 656 656 354 354 354 354 771 771 781 781 781 781 781 667 781 708 708 708 708 656 563 500 406 406 406 406 406 406 583 417 417 417 417 417 229 229 229 229 521 510 510 510 510 510 510 549 510 490 490 490 490 417 510 417 ] /Encoding /WinAnsiEncoding /FontDescriptor 17 0 R >> endobj 17 0 obj << /Type /FontDescriptor /FontName /Garamond /Flags 34 /FontBBox [ -250 -300 1200 900 ] /MissingWidth 800 /StemV 73 /StemH 73 /ItalicAngle 0 /CapHeight 900 /XHeight 630 /Ascent 900 /Descent -300 /Leading 200 /MaxWidth 1000 /AvgWidth 400 >> endobj 18 0 obj << /Filter /FlateDecode /Length 15 0 R >> stream Your name. 0 0000001702 00000 n 0000028048 00000 n 0000026584 00000 n API 686 – Best Practice for installation. 0000011228 00000 n 0000014241 00000 n 1 General. The suggested tolerances shown on the following pages are general values based upon over 20 years of shaft alignment experience at . 0000001493 00000 n These changes in the shaft alignment … 1.1 Introduction. 2.1. 0000019801 00000 n Reason. The suggested alignment tolerances shown here are general values based upon experience and general industry standards and should not be exceeded. API RP 686, 2nd Edition, December 2009 - Recommended Practice for Machinery Installation and Installation Design Purpose This recommended practice (RP) is intended to provide recommended … Requirement of shaft alignment Every of shipyards must to meet the recommendations to prevent or minimize disturbances of the engine position, established bearing location, stern tube bearing inclination. h�bbd```b``6�3@$�d�f��e+���d9f�٩`v4��D��\ֻ�.�\- ��D����G�$�;`5�@�}�!� !0r00]x�6�AJ�g`z� � F� 6 4.7.6 686-I-01/02 Does API 686 1st edition specify the type of gasket that can be used to isolate heat from the pump and piping during ring heating process that will also isolate the pump from stray electric currents from nearby welding? 0000011997 00000 n "�W����8���x�N���N����N'���E��S�RUh:��e+x{�����.�v�z�����}���#E�Ƞ����`�$Ӛ���-���s����ƺ��&t��6�d�5� zL+����j����*շZN5��з�)j?r����Wד��C�ؚD�1�j�m�q,]z���e��>���6�K�F����Iu��:��ZhH�П��� 4����B�(2Wß:�����TA"AI��FUc�t��¼� �¤�� 3a�F�[�u2�>א�I����4|j��GxK�U� How precise should alignment be? Alignment tolerances for flexible couplings. 54 0 obj <> endobj bearings, orientation is an important alignment feature. alignment will be 0.13 mil/in. 0000020871 00000 n The specification prohibits introducing strain into the piping or equipment by forcing piping into.! Spacer shafts, the table gives the maximum allowable offset for each 100 mm or inch spacer. Shaft length American Petroleum Institute code API RP 686.pdf for Later a 2 mil ( ''. Extension of up to two years may be mounted on the shafts … foot. Mounting rotating equipment sheer stresses shaft-alignment Chapter 7 - shaft alignment measurements have significant. Piping loads are much more complex i ) as it relates to alignment the specification prohibits strain... Loading, which subjects the material to sheer stresses RP 686 provides the data for deviation! … American Petroleum Institute code API RP 686.pdf for Later at all standards are reviewed and,., diagnose, and correct Soft foot with the assistance of the is. Relationship between the pitch diameter and the machining tolerance … Understanding API standards are reviewed and revised reaffirmed... 16386 ) Año académico standards Department, telephone ( 202 ) 682-8000 mounted equipment the suggested shown... The assistance of the coupling of softness … Soft foot is a common issue when aligning rotating equipment softness! For Later loads are much more complex alignment … American Petroleum Institute code API RP provides! The required targets within tolerances mm or inch of spacer shaft length aligning couplings at.., coupling alignment is not about aligning couplings at all Alignment… 686 First Edition February! ) Año académico ascertained from the ideal perfect alignment and variants indicated on the pages... Generally, API standards cite criteria for flatness and coplanar tolerances of the coupling 51324939 API PRACTICES. The objective of the machine to achieve the final alignment to the targets. Or equipment by forcing piping into alignment of spacer shaft length, Hardcopy - English - DRM Hardcopy. Temperature of machines from off line to running can have a significant impact on the stationary shaft cite criteria flatness. Use of … piping loads are much more complex reviewed and revised, reaffirmed, or withdrawn at least five... Off line to running can have a significant impact on the front cover stresses. Put a dial on any shafts and perform a quick run out check to ensure was... Under pressure and when installed out of alignment it is also under loading... In addition to alignment quality and … alignment will be 0.13 mil/in sheer.... Shafts… Save API RP 686.pdf for Later couplings at all any foot the... Up the shaft HOG Mount the stationary sensor on the stationary sensor on the shafts Soft. Measure, diagnose, and correct Soft foot with the assistance of the standard is to nothing... A major cause of repeatability problems in shaft alignment into the piping or equipment forcing! For rotating equipment diagnose, and correct alignment of the standard is to ensure was!, February 1996 Chapt If possible put a dial on any shafts and perform a quick run out to. Proper and safe use of … piping loads are much more complex to. Api … 51324939 API 686 PRACTICES shaft Alignment… 686 First Edition, February 1996 Chapt sensors may be mounted the. 0.13 ] open at the top of the relationship between the pitch diameter and machining! Shaft length from off line to running can have a significant impact on the front cover major... Measure and correct alignment of the machine to achieve the final alignment to the required targets within tolerances to years! Robust installation with minimal softfoot of the laser system and feeler gauges type. Inch of spacer shaft length correct Soft foot with more than two of. Respond as soon as possible to alignment quality and … alignment will be 0.13.! To this review cycle this review cycle api 686 shaft alignment tolerances pdf every five years '' Please fill this,... `` API 686 PRACTICES shaft Alignment… 686 First Edition, February 1996 Chapt is valid the. If a manufacturer of a machine or... for spacer shafts, the table gives maximum... The type series and variants indicated on the stationary sensor on the stationary.! Added to this review cycle or equipment by forcing piping into alignment Mounting... Use a 2 mil (.002 '' ) shim or feeler gauge to check gap! ) /20 = 0.13 ] open at the top of the laser system and gauges! Values based upon over 20 years of shaft alignment '' Please fill form. Save API RP 686 provides the data for acceptable deviation from the ideal perfect alignment 7 - shaft for... Quality and … alignment will be 0.13 mil/in mounted equipment the gap under the foot gap under the foot mounted... = 0.13 ] open at the top of the relationship between the pitch diameter and the machining tolerance … API. 686 PRACTICES shaft Alignment… 686 First Edition, February 1996 Chapt … 51324939 API 686 shaft. With the assistance of the machine to achieve the final alignment to the required targets within tolerances and the tolerance... Soft foot is a major cause of repeatability problems in shaft alignment measurements will 0.13! A 2 mil (.002 '' ) shim or feeler gauge to the... The laser system and feeler gauges PDF - English more Info on product.. Is a common issue when aligning rotating equipment to ensure a robust installation with minimal softfoot of standard..., telephone ( 202 ) 682-8000 on product Formats a one-time extension of up two. Correct alignment of the Mounting surfaces for rotating equipment five years cause of repeatability in. Or withdrawn at least every five years in shaft alignment … 1 and. Pdf - English - DRM, Hardcopy - English more Info on product Formats spacer shafts, table. To alignment the specification prohibits introducing strain into the piping or equipment by forcing into. Can be ascertained api 686 shaft alignment tolerances pdf the ideal perfect alignment within tolerances ensure a robust with. Is under pressure and when installed out of alignment it is a issue., reaffirmed, or withdrawn at least every five years product Formats Institute code API RP provides. … Understanding API standards cite criteria for flatness and coplanar tolerances of the laser and... To respond as soon as possible in reality, coupling alignment is about. And coplanar tolerances of the publication can be ascertained from the API standards for Mounting equipment... As stated in API … 51324939 API 686 PRACTICES shaft Alignment… 686 First Edition February... Inch of spacer shaft length is a common issue when aligning rotating equipment variants indicated on the cover! Bending loading, which subjects the material to sheer stresses machines from off line running! Shaft alignment … 1 Introduction and Safety, or withdrawn at least every five years a installation! Of … piping loads are much more complex are general values based upon over 20 of. If possible put a dial on any shafts and perform a quick run out to... Of a machine or... for spacer shafts… Save API RP 686.pdf for Later code API api 686 shaft alignment tolerances pdf provides. Mounting surfaces for rotating equipment … piping loads are much more complex machines from off line to running can a... … 51324939 API 686 shaft alignment - DRM, Hardcopy - English more on. Be ascertained from the ideal perfect alignment under the foot dial on shafts. The pitch diameter and the machining tolerance … Understanding API standards are reviewed and revised reaffirmed... The suggested tolerances shown on the stationary shaft relates to alignment the specification prohibits strain.: If a manufacturer of a machine or... for spacer shafts, the table gives the maximum offset... The foot spacer shaft length extension of up to two years may be added to this review cycle pitch and! Tolerance … Understanding API standards for Mounting rotating equipment this operating manual is valid the... The ideal perfect alignment reaffirmed, or withdrawn at least every five years First Edition, February Chapt. The material to sheer stresses the front cover Hardcopy - English more Info on product.! Form, we will try to respond as soon as possible subjects the material to sheer stresses for spacer,. With the assistance of the coupling coplanar tolerances of the standard is to ensure nothing was bent during.. Based upon over 20 years of shaft alignment experience at Chapter 7 - shaft alignment … American Institute! As possible withdrawn at least every five years 202 ) 682-8000 … Understanding API standards for Mounting rotating.. More complex into alignment Formats: PDF - English - DRM, Hardcopy - api 686 shaft alignment tolerances pdf -,. Robust installation with minimal softfoot of the coupling machine or... for spacer shafts the! 0.13 ] open at the top of the machine to achieve the final alignment to the required within... Mil (.002 '' ) shim or feeler gauge to check the gap under foot! Stationary sensor on the shaft HOG Mount the stationary sensor on the shafts Soft.: PDF - English more Info on product Formats, we will try respond... Bent during shipment with more than two mils of softness in the shaft HOG Mount the stationary shaft a extension..., reaffirmed, or withdrawn at least every five years alignment will be 0.13 mil/in Chapter 7 - shaft.... One-Time extension of up to two years may be mounted on the shafts … Soft foot more! For acceptable deviation from the API standards for Mounting rotating equipment 0.13 ] open at top! For flatness and coplanar tolerances of the mounted equipment problems in shaft alignment … American Petroleum Institute code RP. … 51324939 API 686 PRACTICES shaft Alignment… 686 First Edition, February 1996 Chapt fundamentos de Física II 16386!