Balancing of Rotating Machinery


This course covers single-plane balancing techniques for both rigid and flexible rotors. It includes both field balancing and shop (balancing machine) balancing. Topics such as pre-balance checks, influence coefficients, balance quality and tolerances, residual unbalance testing and case histories are included. It is partial preparation for the Vibration Analyst Category III and IV Certification Exams. The workshops and demonstrations, scheduled throughout the training course, are used to illustrate theory and applications.

All registered attendees in the Balancing of Rotating Machinery training course receive the following:
·         Course power points
·         Class notes
·         Workshops containing examples, workshop problems and the Balancing Body of Knowledge
·         Training course examination study guide
·         Calculator, ruler and balancing tools
·         Certificate of completion (3.7 CEUs)

The BRM training course will begin at noon and conclude at 6:00 p.m. on Monday; then will begin at 8:00 am and conclude at 5:00 pm Tuesday through Friday. Subject to change.

It is recommended that attendees review the Body of Knowledge prior to the training course which can be found at under Certification.
Registration Fee: $1,975 USD
(VI Members are entitled to a 10% discount off registration pricing.)

Dates & Locations:

February 5-9, 2018
Tempe, AZ


October 15-19, 2018
Oak Brook, IL


Course Content Includes:

Basic Aspects of Machine Balancing
Purpose, mass unbalance force and causes, rotor classification, techniques, equipment, pre-balancing checks, critical speeds, trial weight selection/placement, and pitfalls.

Single-Plane Balancing Techniques
Vector and four-run methods, critical speeds, modes, heavy spot high-spot relationship, balance sensitivity, phase lag, trial weight selection, weight splitting, criteria and standards.

Workshop I: Topics
Class exercises on basic principles.

Workshop II: Single-Plane Balancing
Hands-on exercises using a rotor kit, vector method, single-plane balancing; registrants can bring an instrument or use the Institute’s equipment.

Workshop III: Single-Plane Balancing
Vector and four-run methods, critical speeds, modes, heavy spot high-spot relationship, balance sensitivity, phase lag, trial weight selection, weight splitting, criteria, and standards.
Single-Plane Balancing Techniques
Influence coefficient and static/couple methods, calculator and graphical methods, one-shot balancing-single plane.

Workshop IV: Single-Plane Balancing
Static-couple method, class exercises.

Workshop V: Single-Plane Balancing
Class exercises.

Workshop VI: Single-Plane Balancing Coefficients
Class exercises.

Turbine/Generator Balancing
Procedures, static/couple method, influence coefficient method, plane/sensor selections, strategy for least runs.
Roll Balancing
Weight placement, critical speeds, bow effects.
Fan Balancing
Balancing techniques (single- and two-plane), overhung fans, balance sensitivity, critical speeds, case histories.
Shop Balancing Techniques
Balance machine procedures and calibration.
Balancing Case Histories
Balancing in the field, procedures, strategies, and pitfalls.

Course Review

Training Examination on Course Content (1.5 hours)

Training Examination Review 
Optional Certification Exam to be administered on the day AFTER the course.

Vibration Analyst Category I: $275
Vibration Analyst Category II: $300
Vibration Analyst Category III: $350
Vibration Analyst Category IV: $450
Balancing Field Specialist Exam: $275