CNC Machining Insights

Sharing our hands-on manufacturing experience to help you bring your projects to life.

Precision-machined pump shaft and mechanical seal face showing different Ra surface finish values

Specification Guide

Ra Surface Finish Chart for Pump Shafts, Seals & Bearings (µm)

Recommended Ra values in µm for pump shaft journals, mechanical seal faces, bearing fits, and O-ring grooves — plus how to call them out on a drawing so suppliers don't guess.

May 30, 2026

Precision CNC machined and 3D printed industrial components side by side

Engineering Insights

CNC Machining vs 3D Printing for Industrial Parts

Compare CNC machining and metal 3D printing for industrial parts: tolerances, surface finish, prototyping vs production, and when to combine both processes.

May 25, 2026