The Importance of Shaft Alignment and Standard Operating Procedures by SKF

In the industrial sector, factory machinery efficiency isn't measured solely by production capacity—it also depends on the stability of the power transmission system. Reducing the risk of Unplanned Downtime often traces back to a crucial yet frequently overlooked factor: shaft alignment. If the motor shaft and machine shaft do not align properly, even a minor deviation can generate vibration, heat accumulation, and premature wear on internal components.

Master Bearings Co., Ltd., an official SKF bearing distributor, offers professional Shaft Alignment services to enhance machine performance and control long-term maintenance costs.

What is Shaft Alignment and What Common Issues Occur?

Shaft Alignment is the process of adjusting the shafts of a motor and driven machine so that their rotational axes are perfectly collinear. Common misalignments include:

• Parallel Misalignment (Offset): The axes of both shafts are parallel but off-center.

• Angular Misalignment: The axes of both shafts meet at an angle rather than forming a straight line.

• Combination Misalignment: Both parallel and angular misalignments occur simultaneously.

5 Warning Signs That Your Machinery Needs Shaft Alignment:

1. Abnormal Vibration: Motors or pumps vibrate severely during operation.

2. Frequent Bearing Failure: Bearings have a shorter lifespan than expected or run at high temperatures.

3. Repeated Seal Leaks: Seals wear out prematurely due to excessive shaft movement.

4. Premature Coupling Wear: Coupling inserts degrade or tear quickly under excess stress.

5. Increased Power Consumption: The machine works harder to overcome internal resistance.

SKF Standard Laser Shaft Alignment Steps:

1. Machine Condition Inspection: Evaluate foundation tightness, coupling status, and bearing conditions before starting.

2. Laser Equipment Installation: Mount laser sensor units on both shafts to capture real-time measurement data.

3. Misalignment Analysis: Process deviation data to calculate precise alignment adjustments.

4. Machine Adjustment: Adjust vertical and horizontal positions within acceptable tolerance limits.

5. Re-check & Verification: Remeasuring after tightening to ensure maximum precision.

Master Bearings Co., Ltd. is ready to deliver expert service using high-precision SKF laser measurement tools to keep your factory machinery operating at peak efficiency, safely, and sustainably.