Question 1

What core info is needed for custom shafts?

Accepted Answer

Provide 3D models (STP/IGS), 2D CAD drawings, material specs (42CrMo/17-4PH), tolerance demands (IT5-IT7), and DFM requirements.

Question 2

Which materials dominate high-performance shafts?

Accepted Answer

42CrMo alloy steel, 304/316L stainless steel, titanium alloy, and nitride steel for wear resistance.

Question 3

How to resolve shaft runout issues?

Accepted Answer

Optimize CNC turning/grinding tool paths, balance dynamic precision, and apply journal surface lapping.

Question 4

What causes shaft fatigue failure?

Accepted Answer

Surface defects or improper heat treatment; solved by shot peening and quenching-tempering (HRC 45-55).

Question 5

What's the typical lead time?

Accepted Answer

10-30 days: Standard shafts (10-15 days); complex spline shafts (20-30 days) with hobbing processing.

Question 6

How to enhance shaft corrosion resistance?

Accepted Answer

Apply chrome plating, passivation, or PVD coating; comply with salt spray test (>48h) for automotive/aerospace.

Question 7

What's the common payment structure?

Accepted Answer

30-40% down payment for raw materials, balance paid before delivery; flexible terms for bulk orders.

Question 8

What post-processing improves performance?

Accepted Answer

Heat treatment (carburizing/nitriding), surface grinding, and dynamic balancing (G2.5 grade for high-speed shafts).

Question 9

How to handle spline shaft wear?

Accepted Answer

Adopt induction hardening for tooth surfaces, select involute splines (ISO 6408) and optimize lubrication design.

Question 10

How to verify shaft quality?

Accepted Answer

Use CMM for dimensional inspection, ultrasonic flaw detection (UT) for internal defects, and hardness testing (Rockwell/Brinell).

Question 11

What's the difference between solid and hollow shafts?

Accepted Answer

Solid shafts for high torque (simpler processing); hollow shafts for lightweight design (aerospace/automotive drivetrains).

Question 12

How to ensure IP security for custom designs?

Accepted Answer

Sign NDA agreements, encrypt technical files, and mark unique serial numbers for traceability.

Product profile

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Surface Treatment

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