tailieunhanh - Handbook Of Shaft Alignment Episode 1 Part 2

Tham khảo tài liệu 'handbook of shaft alignment episode 1 part 2', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Appendix C Sample Installation and Shaft Alignment. 757 Appendix D Torque Values SAE Grade 2 Bolts . 759 Appendix E Torque Values SAE Grade 5 Bolts . 761 Appendix F Torque Values SAE Grade 8 Bolts . 763 Appendix G Shaft Alignment and Related . Patents. 765 Appendix H Shaft Alignment Training Questionnaire . 769 Appendix I Shaft Alignment Services Questionnaire . 775 Appendix J Alignment Internet Web Sites . 781 Appendix K Single Plane Balancing . 783 Index. 791 Introduction to Shaft Alignment BENEFITS OF GOOD MACHINERY ALIGNMENT Industry worldwide is losing billions of dollars a year due to misalignment of machinery. The heart and soul of virtually every industrial operation pivots on keeping rotating machinery in good working order. Countless processes are dependent on the successful operation of rotating machines that produce electric power fuels paper steel glass pharmaceuticals the food we eat the clothes we wear the buildings we live and work in and the vehicles that transport us across the surface of the Earth. Just about everything you see around has somehow been influenced by rotating machinery of some kind. The primary objective of accurate alignment is to increase the operating life span of rotating machinery. To achieve this goal machinery components that are most likely to fail must operate well within their design limits. As the parts that are most likely to fail are the bearings seals coupling and shafts the accurately aligned machinery will reduce excessive axial and radial forces on the bearings to insure longer bearing life and rotor stability under dynamic operating conditions. Precise alignment will reduce the possibility of shaft failure from cyclic fatigue it will minimize the amount of wear in the coupling components alleviate the amount of shaft bending from the point of power transmission in the coupling to the coupling end bearing and it will maintain proper internal rotor clearances. In a nutshell accurate alignment will do nothing