Section 9.2.4 generally prohibits repair methods like plasma spray, plating, or metalizing on bearing journals and seal areas unless otherwise approved.
This article is for informational purposes only. Always refer to the official API Standard 687, latest edition, for binding requirements. The author is not affiliated with API.
As of 2025, the API Subcommittee on Mechanical Equipment is considering updates to API 687 to include: Api 687 Rotor Repair Pdf Download--------
Having a PDF copy of the API 687 standard on hand can be a valuable resource for maintenance teams, engineers, and operations personnel involved in rotor repair and refurbishment.
Report on Industry Context, Challenges, and Recommendations Section 9
permitted for rotors.
Clarifies which rotors are covered (generally those operating above 3,000 RPM or with high strain energy). The author is not affiliated with API
for standards incorporated into federal regulations, though RP 687 may only be available there if specifically referenced by law. American Petroleum Institute | API Guide Overview & Scope