Custom 42CrMo Spur Gear Manufacturing for OEM Applications

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Custom Gear Manufacturing · OEM / ODM

Custom 42CrMo Spur Gear Manufacturing for OEM Applications

Need a cylindrical steel gear with a defined tooth profile, central bore, and radial threaded features? Shenzhen Perfect Precision Products Co., Ltd. manufactures drawing-based custom gears and related precision components for prototype, small-batch, and production programs.

The supplied reference is identified as a 42CrMo part processed through turning, gear hobbing, heat treatment, and surface cleaning. The final material condition, tooth data, hardness, accuracy, and tolerances are confirmed during engineering review.

Request a Quote Discuss Your Project

Your quotation is prepared from the agreed drawing, material, quantity, finish, inspection, and delivery requirements. Customer drawings and product information can be handled as confidential business information, with NDA arrangements available on request.

Custom Gear Manufacturing Aligned with Your Drawing

This component appears to be a short cylindrical external spur gear with straight teeth, a central round bore, and radial threaded openings through the outer body. It may be used as a shaft-mounted transmission component, but the actual function and load requirements must be confirmed from the part or assembly drawing.

For reliable production, the drawing should define the tooth count, module or diametral pitch, pressure angle, face width, bore, radial thread features, datums, tolerances, heat treatment, surface condition, and inspection requirements.

Product Specification Overview

Part type Custom cylindrical external spur gear

Material 42CrMo, subject to final grade and material-certificate confirmation

Visible geometry Straight external teeth, central round bore, radial thread-like openings

Manufacturing route Turning, gear hobbing, heat treatment, and surface cleaning

Machining capability ±0.01 mm; special areas may be reviewed for ±0.005 mm

Surface roughness General company information states Ra 0.1–3.2 μm

Inspection resources CMM, 2D measuring instruments, gauges, QA/QC inspection

Drawing formats PDF, STEP, IGS, STL, X_T, DWG, DXF etc.

Tooth count, module, pressure angle, gear accuracy, bore tolerance, thread standard, heat-treatment hardness, and exact dimensions are not confirmed by the product photographs and must be taken from the approved drawing.

Why This Gear Project Requires Engineering Review

Tooth Geometry Must Match the Mating System

Outside diameter alone is not enough to define a gear. Tooth count, module or diametral pitch, pressure angle, face width, and gear standard control how the part mates.

The Bore and Radial Threads Are Functional Features

The central bore and visible radial openings may control shaft fit and retention. Their diameter, tolerance, position, and thread standard should be specified clearly.

Heat Treatment Affects the Finished Part

The specification should define the required method, hardness, case depth where applicable, distortion limits, and any post-treatment machining allowance.

Inspection Should Focus on Functional Characteristics

Inspection may cover the bore, tooth-related dimensions, runout, and material certificate. CMM and 2D measuring resources are available for detailed reporting.

Manufacturing Route

Review drawing, gear data, tolerances, and inspection requirements.

Verify 42CrMo material grade and required traceability documents.

Machine the cylindrical blank and datum features via CNC turning.

Generate external teeth using gear hobbing process.

Machine and inspect the bore and radial threaded features.

Apply specified heat-treatment and control hardness condition.

Complete deburring, cleaning, and rust-removal operations.

Perform FAI, in-process, and pre-shipment inspection.

Protective packaging for teeth, bore, and finished faces.

Factory Capabilities Relevant to Custom Gears

Shenzhen Perfect Precision Products Co., Ltd. is documented as a custom OEM/ODM manufacturer with CNC machining, gear-related manufacturing, rapid prototyping, injection molding, sheet metal, casting, forging, and finishing coordination capabilities.

ISO9001:2015 and ISO13485:2016 quality-management certifications
79+ machines and 100+ professional staff
Six QA/QC inspectors and five testing instruments (CMM, 2D)
General machining tolerance capability of ±0.01 mm
More than 300,000 pieces per month capacity
Prototype, pilot, and production support
Common engineering drawing and CAD file support
International export and logistics coordination

These figures describe documented factory-level capabilities. They are not automatic specifications or capacity guarantees for every gear project.

Request a Quotation

Please provide:

2D drawing and revision number
3D CAD model if available
Material grade and condition
Tooth count, module, pressure angle, face width
Bore, radial thread, keyway, spline requirements
Critical tolerances and runout limits
Heat-treatment and hardness requirements
Surface cleaning or finishing requirements
Quantity and target delivery date
Inspection report or material certificate needs

If you do not have a completed drawing, send photos, a physical sample, a sketch, or a description of the function. The initial discussion can identify missing information, but a final production quotation requires an approved engineering definition.

Frequently Asked Questions

What material is this gear made from?

The supplied part reference identifies it as 42CrMo. Final grade, condition, and certificate requirements must be confirmed against the approved drawing.

Can you manufacture a gear from a photo?

A photo can support a preliminary feasibility discussion, but it cannot establish the complete gear geometry. A drawing, CAD model, or measured sample is required for final quotation.

Can you provide heat treatment?

Heat treatment is identified in the supplied part reference and can be included as a project requirement. The method and hardness must be defined before production.

What tolerance can you achieve?

The documented general machining capability is ±0.01 mm, with special areas potentially reviewed at ±0.005 mm. Gear accuracy is confirmed after drawing review.