In BGB’s repairs department, one issue consistently stands out when inspecting non-BGB slip rings: hydraulic oil ingress.

Time and again, units arrive with significant oil contamination inside the slip ring assembly. In some cases, the amount of oil recovered during disassembly is substantial enough to fill jugs with unwanted hydraulic oil drained from the unit.

Why is oil ingress a problem?

Hydraulic oil inside a slip ring can lead to:

• Contamination of brushes and tracks
• Reduced electrical performance
• Increased wear and premature failure
• Unplanned downtime and costly maintenance
• Difficult fault diagnosis due to intermittent electrical issues

Effective sealing and robust design are critical in hydraulic environments, particularly in demanding offshore, marine, construction and industrial applications where reliability is essential.

Every repair reinforces the same lesson: preventing oil ingress is far more cost-effective than dealing with the consequences after failure.

If you are experiencing recurring slip ring issues, it may be worth investigating whether oil ingress is the root cause before replacing components unnecessarily.

Have you encountered similar challenges with slip rings operating in hydraulic systems? Contact BGB today at sales@bgbinnovation.com