Vertical Z Axis Ball Screw Selection Should State Load and Brake Details

Quick answer

A vertical Z axis ball screw must be selected by load, lead, thrust margin, brake plan, drop risk, and safety factor, not by speed alone. weimute should receive the vertical load, motor/brake information, travel, nut style, and support plan before quoting.

Application decision table

| Vertical Z axis question | What to confirm | Why it matters | | --- | --- | --- | | Will the axis hold position? | Brake, motor holding torque, lead | Reduces drop risk when power is off. | | Is thrust enough? | Load, acceleration, duty, safety factor | Confirms thrust margin and screw size. | | Is speed realistic? | Lead, motor speed, travel | Avoids choosing too large a lead. | | Is assembly safe? | Support unit, nut style, end machining | Keeps fixed side and coupling fit stable. |

RFQ checklist

Vertical Z axis load, moving mass, stroke, speed target, and cycle time.
Lead choice, thrust margin, safety factor, brake type, and drop risk concern.
Motor type, coupling, support unit, nut style, accuracy, and backlash requirement.
End machining drawing, installation space, quantity, packing, and delivery target.
Note whether the application is CNC, router, lifting, packaging, or automation equipment.

Send us your Z axis load case

Send weimute the load, travel, speed, brake plan, and support unit information. Our manufacturing and sales team will review whether the lead and screw size leave enough thrust margin and safety factor before quoting.

FAQ

**Can I choose a larger lead for faster Z movement?** Only after checking brake, load, thrust margin, and drop risk.

**Does a vertical axis always need a brake?** Many vertical axes need a brake or other holding method, but the final choice depends on load, lead, motor, and safety requirement.

Next step

Turn this guide into an RFQ

When the specification direction is clear, send the details below together with quantity, lead time, and packing requirements.

Include these details

Model, diameter, lead, accuracy grade, or target application.
Load, speed, travel, mounting method, and matching rail or support-unit needs.
Quantity, lead time, packing, and whether inspection records or shipment photos are needed.

Send Z axis load and brake details View applications