m0.3 Lightened Spur Gear

Module: m0.3
Outer diameter:Ø140mm
Inner diameter: Ø60mm
Tooth width: 7mm
Number of teeth: 450
Tooth profile error: ≤ 10μm
Tooth surface roughness:Hobbing: Ra ≤ 0.8,Grinding: Ra ≤ 0.4
Precision: JIS 1-2, DIN 5-6, AGMA 13-12
Materials:18CrNiMo7-6,9310,440C,440C,17-4PH Surface roughness can reach Ra0.2 Positional tolerance accuracy：0.01mm Form tolerance:0.005mm.

Product Introduction

Products Description

MH manufacture custom small-module micro gears.

This is a High-Precision Micro Module Ring Gear – m0.3

Ultra-micro module (m0.3)

Tooth height is only about 2.25 × 0.3 ≈ 0.675 mm, with extremely thin tooth roots.

Large diameter, thin-walled structure

Large diameter, numerous internal weight-reduction cavities, weak annular rigidity, prone to machining deformation.

Structure integrated with the gear ring

Not a simple gear ring, but rather: complex internal cavity, zoned weight-reduction design, multi-faceted machining.

03m Lightweight Small-Module Ring Spur Gear

Key Technical Challenges

Ultra-micro module machining capability.
Large diameter pitch error control
Thin-walled structure deformation control
Batch consistency control

MH Manufacturing Solution

Key Datum and Structural Machining

• MAZAK INTEGREX i-250 Milling and Turning Center Used for single-clamp machining of center holes, end faces, positioning datums, and complex cavity structures, reducing cumulative errors.

Precision Machining of Thin-Walled Structures and Weight-Reducing Cavities

• Multiple high-rigidity CNC machining centers

• Optimal machining sequence and symmetrical removal strategy to control deformationGear grinding capabilities.

Small Module Gear Machining and Finishing

• Mature small module gear machining technology

• DIN 6 precision or DIN 5 gear grinding solutions can be implemented upon request.

Precision Inspection and Quality Verification

• ZEISS Coordinate Measuring System

• Used to inspect circular runout, concentricity, key dimensions, and structural consistency, ensuring stable batch delivery.