Gearbox Troubleshooting, Inspection & Maintenance

Course Outlines

OBJECTIVES

Course Objectives
• Explain the fundamentals of gear contacts, geometry and the materials employed
• Review the major types of gears and their diverse operational properties
• Describe how to select a gearbox for a given application and the factors that need to be considered
• Show how to select and apply the correct lubrication
• Teach what can be learnt from gear failure


OUTLINE

 GENERAL
 GEARS HISTORY
 GEARING LAW
 GEAR TYPE AND ARRANGEMENT
• GEAR TYPES
• GEAR TRAIN
o Single-Stage Gear Train
o Types of Single-Stage Gear Trains
o Two-Stage Gear Train







 MATERIAL CHARACTERISTICS
• GEAR MATERIALS
o Steel Gears
o Cast iron
o Powder metal gears
o Plastic gears
• HEAT TREATMENT
o Gear Hardening
o Gear-Hardening Methods
o Heat Penetration
o Shaving Teeth before Hardening
o Hardening-time Cycles
o Distortion of Gears
 OPERATIONAL ASPECTS
• GEAR LUBRICATION
o Gearbox Lubrication Properties
o Special types of oil applicable for gearbox lubrication
o Lubrication Methods
o Lubricant Viscosity
o Selection of Lubricant
• GEAR NOISE
• GEAR MAINTENANCE
• GEAR FALIURE
o Gear Faliure Analysis
o Gear Failure Inspection
o Gear Failure Type
o Tests
 GEAR DESIGN
• GEAR TERMINOLOGY
• DESIGN OF SPUR AND HELICAL GEAR
• METRIC STANDARDS WORLDWIDE
o ISO Standards
o Foreign Metric Standards
o Japanese Metric Standards
o Symbols