Precision CNC Machined Drive Housings for Robotics
RobotPartsCNC produces high-tolerance drive housings, actuator casings, and transmission components for AMR and AGV platforms. From one-piece prototypes to production batches, we manufacture parts engineered for accurate motion control and reliable assembly.
H7/H8
Bearing fit control
5-axis
Complex housing geometry
CMM
Dimensional inspection
Built around critical interfaces
Bearing bores, motor pilots, reducer mounting faces, sealing grooves, and lightweight aluminum structures.
Engineering standards
A structural foundation for reliable robot motion
A drive housing must maintain alignment under load while minimizing mass to extend battery life. Our machining approach focuses on the interfaces and geometric relationships that directly affect vibration, gear wear, sealing, and assembly performance.
Bearing fits
Precision boring to H7/H8 tolerances supports interference fits without distorting the housing.
Motor interfaces
Accurate bolt patterns and pilot diameters align motor shafts, reducers, and gearboxes.
Sealing integrity
O-ring grooves and seal seats are machined for demanding industrial and IP-rated environments.
Geometric control
Perpendicularity and parallelism between mounting faces help reduce vibration and premature gear wear.
CNC capabilities
Complex geometries with fewer setup-related risks
Our Shenzhen facility uses multi-axis CNC milling and turn-mill centers to produce complex housings in a single setup where possible. This helps reduce tolerance stack-up caused by repeated re-fixturing.
5-axis milling
Suitable for cooling fins, weight-reduction pockets, and non-orthogonal mounting features.
Mill-turn processing
Circular housings with integrated flanges can be produced with controlled concentricity between the outer diameter and bearing bores.
Thin-wall machining
Dedicated fixturing and tool paths help manage stress and prevent deformation in lightweight aluminum housings.
Material and finish selection
Lightweight structures, protected for service
We balance stiffness, impact resistance, corrosion protection, and total assembly weight according to the robot platform and operating environment.
Aluminum 6061-T6 and 7075-T6
Lightweight, high-strength options for drive housings; 7075-T6 is suited to applications requiring greater impact resistance.
Stainless steel 304 and 316
Selected for corrosion resistance and applications such as laboratory, medical, or food-related robotics.
Carbon steels 1045 and 4140
Used when the housing is a load-bearing structure or requires localized surface hardening.
Secondary processes
Assembly-ready surface treatment
-
●
Hard anodizing, Type III
Improves aluminum surface hardness and resistance to abrasive dust and friction.
-
●
Clear or color anodizing
Adds corrosion resistance and visual identification for different robot modules.
-
●
Electroless nickel plating
Provides uniform coverage on complex internal geometries in steel or aluminum components.
-
●
Precision deburring
Removes chips and sharp edges that could interfere with sensors, bearings, or gear assemblies.
Quality control
Inspection built around motion-critical dimensions
Our quality team uses CMM equipment to verify production batches and confirm that housings are ready for repeatable assembly. Every shipment includes a Certificate of Conformance, with FAI or batch-specific inspection reports available upon request.
Concentricity
Runout checks for drive shafts and gear-driven housings.
True position
Mounting holes aligned to motor and gearbox specifications.
Thread control
Tapped holes verified for smooth production-line assembly.
Development support
Prototype to production
Prototyping
Rapid initial housings for fit, clearance, and motion validation.
Low-volume production
Batch production from 50 to 1,000+ units using optimized fixtures.
DFM feedback
Actionable recommendations for thin walls, internal radii, tolerances, and machining access.
Supply chain support
A streamlined path from material to delivery
Based in Shenzhen, RobotPartsCNC coordinates raw material procurement, specialized heat treatment, finishing, final assembly, and international logistics. Air and sea freight options help keep components moving to your schedule.
01
Material sourcing
Approved materials and coordinated specialty processes.
02
Production control
Stable fixtures and inspection for repeatable batches.
03
Final readiness
Deburring, finishing, documentation, and assembly support.
04
Global delivery
Reliable air and sea freight coordination.
Request your quote
Send your drive housing requirements
Share your project files and required quantities for a formal quotation. Our team can review the design for manufacturability before machining begins.
Please include:
- 3D CAD files in STEP, STP, or X_T format.
- 2D drawings with GD&T specifications in PDF format.
- Material and surface finish requirements.
- Prototype and production quantities.
Talk with our manufacturing team
Provide your details and files through the inquiry channel below.
RobotPartsCNC
Email: info@robotpartscnc.com