What C7 means
C7 rolled ball screws are commonly used when cost and delivery matter more than high positioning accuracy. They fit many CNC routers, automation, packing, and repair applications.
What C5 means
C5 ground ball screws are chosen when accuracy and repeatability are more demanding. They usually cost more and need clearer drawing control.
How to choose
Compare the machine requirement, stroke, speed, load, installation, budget, and delivery target. If you are unsure, send the application details and ask for a recommendation.
Send these details for a quote
- Model or diameter and lead.
- Total length and thread length.
- Accuracy target or machine application.
- Nut type and preload or backlash requirement.
- End machining drawing when needed.
A clear RFQ lets the supplier quote C7 or C5 options without guessing.