Precision CNC Manufacturing Since 2013
Precision Motor Spacers and CNC Machined Components
SpacerMFG manufactures custom motor spacers and precision-turned components for OEMs and industrial equipment manufacturers. Based in Shenzhen, we translate technical drawings into high-accuracy metal parts, supporting projects from initial prototyping through high-volume production.
2013
Manufacturing experience
OEM
Drawing-based production
CNC
Turning and milling
Built around your technical requirements
Prototype support, production repeatability, and application-focused engineering review.
Dimensional reliability
Why precision matters in motor spacers
Motor spacers are critical for maintaining axial alignment and spacing in high-speed rotating equipment. Even minor deviations in length, squareness, or bore tolerance can lead to vibration, premature bearing failure, or increased thermal expansion issues.
We manufacture spacers to strict dimensional specifications so your assembly achieves the performance, stability, and service life required by your design engineers.
Axial alignment
Controlled length and squareness for dependable assembly positioning.
Bore accuracy
Reliable ID and OD relationships for shafts, housings, and bearings.
Long-term stability
Parts designed for demanding thermal and mechanical conditions.
Manufacturing capabilities
CNC processes for cylindrical and complex components
Our dedicated facility combines CNC turning and milling to manage complex geometries, specific material requirements, and repeat production needs.
CNC Turning
Cylindrical partsTurning centers are configured for high-precision cylindrical parts, maintaining tight tolerances on outside diameter, inside diameter, and length.
- Common parts
- Motor spacers, sleeves, bushings, shafts, pins, and collars.
- Materials
- Aluminum, stainless steel, carbon steel, brass, and engineering plastics.
- Features
- Grooves, chamfers, threads, and stepped profiles.
CNC Milling
Complex geometriesFor components requiring more than simple rotation, our milling capabilities handle brackets, mounting blocks, and complex motor-frame components.
Machined features
Slots, pockets, counterbores, and irregular profiles.
Secondary operations
Tapping, drilling, and precision marking.
Material engineering
Material selection for motor applications
The choice of material directly impacts the thermal and mechanical stability of your motor. We routinely process materials selected for weight, strength, corrosion resistance, conductivity, and friction requirements.
Aluminum
Ideal for lightweight applications and heat dissipation.
Stainless steel
303, 304, and 316 grades selected for corrosion resistance and strength in harsh environments.
Carbon steel
Used for high-load applications where structural rigidity is the priority.
Brass and copper
Specified for electrical conductivity or specific friction requirements.
Beyond machining
Finishing that supports your application
A spacer is only as good as its finish. Comprehensive secondary processing helps parts meet environmental, functional, and aesthetic requirements.
Anodizing
Corrosion resistance for aluminum motor components.
Passivation
Essential for stainless steel parts in medical or clean-room equipment.
Plating and oxide
Nickel, zinc plating, and black oxide for rust prevention and wear resistance.
Grinding and deburring
Burr-free parts that meet your final surface roughness specifications.
Engineering partnership
Support for OEM development and repeat production
We work directly with mechanical engineers, sourcing managers, and product development teams. When you send us your drawings, our team reviews the specifications for manufacturability and identifies potential cost savings or efficiency improvements before production begins.
Whether you need a small batch of prototypes for a new motor design or repeat production for an established product line, we align our manufacturing process with your schedule.
From drawing to delivery
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1
Review
Assess drawings, tolerances, materials, and finishing requirements.
-
2
Prototype
Produce samples or pilot runs to validate your motor assembly.
-
3
Scale
Support repeat production with a process aligned to your schedule.
Industrial applications
Built for high-reliability sectors
Industrial automation
Precision spacers and alignment bushings for robotic joints.
Machinery OEMs
Custom sleeves and shafts for heavy-duty drive systems.
Medical and laboratory
High-precision stainless steel components for demanding equipment.
Automotive and mobility
Repeatable, high-tolerance turned parts for powertrain and auxiliary motors.
Request a quote
Send your motor spacer requirements
For an accurate quote, please provide the following information in your RFQ.
- 01Technical drawing: PDF or CAD files with dimensions and tolerances.
- 02Material specification: Grade and any hardening or finishing requirements.
- 03Order quantity: Prototype, pilot run, or annual production volume.
- 04Application details: Special environmental or assembly conditions.
Email: info@spacermfg.com
Factory: , Shenzhen, China
Tell us about your project
Share your requirements and our team will review the best manufacturing approach.