Mechanical Maintenance: Bearings, Couplings and Alignment
Study common rolling-element bearings, couplings, lubrication and alignment concepts used to maintain reliable industrial rotating equipment.
Work context
Rotating machinery maintenance
This page shows technical knowledge coverage. Course, assessment and credential availability depends on the applicable Industrial Skillset program.
Relevant roles
Mechanical technicians · Reliability technicians · Maintenance planners
Prerequisites
Mechanical fundamentals · Hand tools
Knowledge level
Intermediate coverage with practical workplace context.
Learning outcomes
What this topic is intended to help you understand
- Identify common bearing and coupling types.
- Explain basic lubrication and alignment principles.
- Recognize common failure indicators such as heat, noise, vibration and wear.
Technical scope
Equipment, processes and terminology
- Ball and roller bearings
- Bearing fits
- Couplings
- Shaft alignment
- Soft foot concepts
- Lubrication
- Seals
- Vibration indicators
Workplace practice
How the subject connects to industrial work
- Pre-job condition checks
- Controlled disassembly awareness
- Clean assembly practices
- Alignment verification
- Post-maintenance checks
Quality and safety
Controls that protect people, product and process
- LOTO
- Lifting and pinch points
- Correct bearing handling
- Lubricant cleanliness
- Guard reinstallation
Technical learning supports understanding. Actual work remains governed by site procedures, machine-specific instructions, engineering requirements, supervision and authorization.
Industrial documents
Documents commonly connected to this subject
- OEM manual
- Maintenance procedure
- Alignment report
- Lubrication schedule