Trusted Global Supplier for Precision Machined Shafts

ZM INDUSTRY CO., LTD. delivers high-precision machining solutions for demanding industrial applications. Our production system integrates CNC turning centers, gear grinding machines, automated heat-treatment lines, and full-spectrum inspection equipment. The company has extensive experience exporting worm shaft components, hollow shaft worm gearbox parts, and customized shaft worm gear assemblies to OEM clients worldwide.

Precision Transmission for High-Load Worm Gear Systems

The worm shaft is engineered for high-efficiency torque transmission in worm shaft gearbox and shaft worm gear systems. Manufactured from premium alloy steel with controlled carburizing depth, ultra-fine ground flanks, and Ra0.8 finish, the shaft ensures stable meshing and low noise during continuous duty cycles. Its optimized geometry enhances load distribution when paired with a worm gear shaft or worm shaft and worm gear assembly.

Technical Specifications

Name	worm shaft
Material	High-strength carburizing alloy steel
Hardness	60–62 HRC on functional tooth flanks
Surface Roughness	Ra0.8 ground finishing
Profile Accuracy	DIN 6–7 for worm shaft gear profile
Applicable Gearbox	Worm shaft gearbox / hollow shaft worm gearbox / custom assemblies
Customization capabilities	OEM (Customers provide drawings, our company in accordance with the drawings of customized products)

Quality Control

Multi-Stage Inspection Ensuring Premium Worm Shaft Reliability

Our worm shaft production follows a strict quality management workflow covering material verification, controlled heat treatment, gear-profile grinding, and final assembly simulation. Each worm shaft undergoes ultrasonic testing, magnetic particle inspection, hardness mapping, case-depth measurement, and precision dimensional evaluation. Heat treatment logs and chemical composition reports are traceable for every batch, ensuring consistent performance across worm gear shaft and shaft worm gear applications. ZM INDUSTRY CO., LTD. guarantees stable quality for long-term industrial operation and global export requirements.

Material Inspection: verify alloy steel grade meets specification.

Dimension Verification: ensure all journals and pitch diameters meet tolerances.

Heat Treatment Check: inspect uniform hardness and controlled case depth.

Surface Testing: verify Ra0.8 finish and surface integrity.

NDT Examination: conduct UT and MPI for internal flaw detection.

Final Performance Review: test meshing smoothness and load-bearing behavior.

Packaging & Shipping

Export-Grade Protection for High-Precision Worm Shafts

Each worm shaft is treated with rust-preventive coating and sealed with VCI protection film before being packed in reinforced export-grade fumigation-free wooden boxes. Internal cushioning ensures the worm shaft remains stable during long-distance sea freight. ZM INDUSTRY CO., LTD. provides flexible delivery solutions for worm shaft gearbox and shaft worm gear customers worldwide, supporting both FCL and LCL shipments.

Reinforced Wooden Crates: engineered to withstand sea-freight vibration.

Comprehensive Protection: multi-layer anti-corrosion and impact control.

Flexible Logistics Options: 20GP / 40HQ / LCL available.