Metal Shafts-Precision Spring

Why Choose US?

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Custom Solutions Tailored to your exact load, space, and environmental needs

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ISO 9001 Certified Rigorous quality control at every stage

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Rapid Prototyping Tested samples available in 5-7 days

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Global Supply Chain Reliable delivery across North America, Europe & Asia

Contact US

E-mail: sales@lihongsprings.com

Mobile: +86 176 6501 0974

WhatsApp: +86 150 1844 0213

FAX: +86 0769-8532 4238

Add: Room 101, Building 1, No. 446 Yanglang Road, Dalingshan, Dongguan, Guangdong, China

What is Metal Shafts？

Metal shafts are central rotating/transmission components in machinery, made from steel, aluminum or titanium alloys with 1-500mm diameter and IT5-grade precision, widely used in automotive transmissions, industrial equipment and power systems.Stainless Steel Compression Springs

Key Advantages

High Load Capacity

42CrMo alloy shafts withstand 1000MPa alternating stress.

Precision Transmission

Grinding achieves ≤0.003mm radial runout.

Extended Lifespan

Surface quenching increases fatigue life 3-5x.

Lightweight

Hollow designs reduce weight 40% with equal torque capacity.

Corrosion Resistance

Stainless steel shafts pass 1000+ hour salt spray tests.

How They Work

Efficiently transmits rotational power from prime movers to driven components while withstanding combined bending/torsional loads through precise geometry and surface properties.

Key Characteristics

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Size Range - 1-500mm diameter, up to 10m length

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Precision Class - Up to IT5 grade (≤0.005mm tolerance)

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Speed Capacity - G2.5 dynamic balance for up to 30000rpm

Key Design Factors

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Strength Analysis – Fatigue verification per ISO 6336

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Heat Treatment – Tempering HRC28-32, case hardening HRC50+

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Fit Tolerance – h6/k6 bearing fits ensure optimal assembly

Manufacturing Process

Material Prep

Spectrometry verifies alloy composition.

Rough Machining

Turning removes 90% stock with 0.5mm allowance.

Heat Treatment

Quenching/tempering for core hardness.

Finish Turning

CNC lathes achieve IT7 precision.

Grinding

Cylindrical grinders reach IT5 critical dimensions.

Surface Hardening

Rolling/induction hardening increases hardness.

Balancing

High-speed balancing to G2.5 grade.

Rust Prevention

Phosphating/chromating/Dacromet coatings.