K-Brief

This is the problematic shaft

There should be a short description so that people quickly can see if this is the relevant K-brief. A describing picture helps those who are more of a visual nature.

Current situation

This section should be updated very often. Ask yourself questions like: Has anything been sent to external laboratories? Has any new test results come out?

Root cause analysis

List all the possible root causes

• No lubrication
• Metallurgical compatibility
• Bearing surfaces too soft
• Bearing loads too high

Proposed countermeasures

	Countermeasure	Effect on root cause
A	Lubricate shaft		Recommended
B	Change metal in the shaft	Upset the metallurgical compatibility	Not recommended
C	Harden the hub and the shaft	Harder bearing surfaces tend to weld less	Investigate further
D	Reduce bearing loads		Not recommended

Conclusion

After a meeting with supplier, the conclusion is to implement lubrication

Action Plan

Task	Responsible	Due date
Acquire grease samples from prefferred suppliers	SIAB	2019-05-17
Start lifetime test	ERAR	2019-05-20