Course Objective
The most common machine element found between what moves and what doesn't is an anti-friction bearing.
This course introduces a maintenance employee to the basic types of bearings and common nomenclature
used. Bearing installation and maintenance is discussed with a focus on preventing premature failure.
The student is also trained to analyze failed bearings so a similar occurrence will not happen again.
Benefits
Provides a framework for basic mechanical knowledge
Raises employee awareness of proper bearing installation
Dispels many misconceptions about bearing maintenance and bearing life
Activities
Classroom inspection of various bearing types
Using a micrometer to check bearing fits
Bearing installation exercises
Analyzing failed bearings
Outline
The Bearing Equation
Improvements in Bearing Materials and Design
Dynamic Load Ratings of Bearings vs. Actual Forces
Bearing Components
Plain Bearings
Ball or Roller Bearings
Cage Assembly
Seals, Shields, Snap-rings, and Bearing Hardware
Bearing Types and Applications
Types of Radial Ball Bearings and Their Uses
Types of Radial Roller Bearings and Their Uses
Pre-mounted Bearings (Flange, Pillow Block, etc.)
Understanding Manufacturers Identification Numbers
ABMA Identification
Identifying Bearing Hardware
Internal Clearance and Bearing Application
ABEC and RBEC Tolerances
Bearing Installation
The Importance of Cleanliness
Mounting Tapered Shaft Bearings
Proper Bearing Fits and Methods to Correct Loose Fits
Proper Bearing Installation Using Heat, Force, and other Methods
Classroom Exercise
Bearing Lubrication
Purpose of Lubrication in Bearings
When to Use Oil vs. Grease
Lubrication Methods and Frequency
Bearing Failure Analysis
Proper Disassembly and Cleaning for Inspection
Common Failure Modes
Classroom Inspection and Analysis Exercise