Benefits of Precision Alignment

1. Benefits of Precision Alignment Ron Sullivan VibrAlign, Inc Richmond, VA 804-379-2250 www.vibralign.com vibralign@aol.com ronaldo101@aol.com

2. Who is VibrAlign? • Laser Alignment Systems • Machinery Diagnostics • Machinery Alignment • Training Programs

3. Who am I? • Ron Sullivan • 19 years experience • Machinery diagnostics • Machinery positioning • Training programs • Instructor

4. What are my objectives for today? • Discover • Instruct • Dialog • Influence • Partner

5. What is maintenance? • Do you have a maintenance mission statement? • Does it address precision alignments? • Can your people recite your mission? • Ask your people: What is your job?

6. Causes of Excessive Vibration

7. Some Benefits of Precision Alignment • Reduced vibration amplitudes • Improved product quality • Longer bearing life • Longer seal life • Less unscheduled downtime • Some have seen lowered energy consumption

8. Misalignment & Bearing Life 3 16700 dynamic capacity x load rating L = 10 force rpm = Hours of life

9. What are some “common problems”? • Base bound situations • Bolt bound situation • Soft foot • Bad bases • Long spans • Excessive runout • Non-rotating shaft • Limited or obstructed rotation

10. What are the real problems? • Getting started (implementing a precision alignment process) • Understanding the basics of alignment • Understanding the objective of precision alignment • Using technology to cover a lack of understanding

11. Rotational Centers • All shafts, whether they are straight or bent, rotate on an axis called the rotational center. • The rotational center forms a straight line.

12. Collinearity • Two shafts are said to be collinear when their respective rotational centers form a single line.

13. Misalignment • Shafts are misaligned when the two shafts are not collinear.

14. The Objective of Precision Alignment? • It is not about “coupling alignment” • It is about: • finding the rotational centers of the machines • positioning the machines • so their centerlines meet a tolerance • when the machines are at operating conditions

15. Stationary & Movable Machines • The driven component is usually designated as the stationary machine, the driver as the movable machine. • Therefore, misalignment is expressed by describing the position of the movable machine relative to the stationary machine. Stationary Machine Movable Machine

16. Horizontal Misalignment • Machines may be misaligned horizontally... Top view (plan)

17. Vertical Misalignment • ... or vertically. Side view (elevation)

18. Types of Misalignment Offset misalignment is often thought of as two coupling hubs which are offset vertically or horizontally.

19. Offset misalignment • Offset misalignment is deviation of the shaft centerlines at the power plane(s) • Offset is the deviation anywhere along the length

20. Shaft Offset

21. Types of Misalignment Angular misalignment is often thought of as two coupling faces which are not parallel.

22. Angular Misalignment Angular misalignment is centerline deviation where the offset is not constant.

23. Shaft Angularity

24. Alignment Tolerances

25. Alignment Methods