Robot Joint Bearing Housing 6061-T6 Aluminum 5-Axis Machined 0.01mm Precision
Robot Joint Bearing Housing
,6061-T6 5-Axis Machined Housing
,Custom CNC Precision Parts OEM
This robot joint bearing housing is a precision-machined structural component engineered for industrial robots, collaborative robots and humanoid robot link assemblies where joint stiffness, concentric bearing fit and long-term dimensional stability are the deciding factors. Each unit is carved from a solid 6061-T6 aluminium billet and finished on 5-axis simultaneous CNC machining centers with turn-mill combined capability, holding ±0.01mm dimensional tolerance across bearing bores, mounting faces and locating holes.
The housing integrates a heavy-duty circular bearing seat, a reinforced base flange and a precision vented mounting pattern to transfer torque and radial load without deflection. Because every part is machined to the customer's own 2D/3D drawing, wall thickness, bore diameter, port position and surface treatment can all be tailored to your exact robot joint kinematics.
- Certified billet selection: 6061-T6 aluminium raw stock with mill test certificate and full material traceability.
- 3-axis roughing: rapid stock removal while leaving uniform finishing allowance to control distortion.
- 5-axis simultaneous finishing and turn-mill combined machining: one-setup completion of bearing bores, faces and inclined mounting holes for true positional accuracy.
- In-process CMM inspection: dimensional and geometric checks after each critical operation, not only at final inspection.
- Deburr and clean: deburring, ultrasonic cleaning, then surface treatment (clear anodize, black hard anodize or bead blast).
- Final verification: full-dimension report, protective packing and photo confirmation before shipment.
Bearing bores are bored and finished in the same setup as the mounting face to protect coaxiality between the bearing seat and the flange. Flatness, perpendicularity and hole position are verified on a coordinate measuring machine, and an inspection report with measured values travels with every batch. For critical robotic joints we can tighten the bore fit to G7 and add pre-assembly trial fitting on request.
Aerospace-grade 6061-T6 aluminium gives the housing a high strength-to-weight ratio, good stiffness and excellent machinability, keeping robot arm mass low while resisting dynamic loads. For higher-load joints, 7075-T6 aluminium and stainless steel are available. The vented seat, reinforced ribs and lightening pockets are optimised by our DFM engineers so that you get maximum rigidity at minimum weight.
Custom work is our core business, not an afterthought. Send your STEP, IGES, STP or DWG files and a target tolerance, and our engineering team returns a manufacturability (DFM) review within 24–48 hours. From one-off prototypes to series production, we control the whole route in-house.
- Custom material: 6061-T6, 7075-T6 aluminium, 304/316 stainless steel, brass, titanium on request
- Custom geometry: bore diameter, mounting pattern, port and slot arrangement per drawing
- Custom tolerance: standard ±0.01mm, tighter fit classes to G7 where required
- Custom finish: clear anodize, black hard anodize, bead blast, mirror polish, laser marking
- Low MOQ: from 1 piece, plus full ODM support for new robot joint designs
Dongguan Changxinda Precision Technology Co., Ltd. (brand: China-CXD) has specialised in custom CNC precision parts and metal manufacturing since 2008. Our 90+ staff operate 4-axis and 5-axis CNC machining centers, turn-mill combined CNC lathes, CNC lathes and milling machines under an ISO 9001:2015 quality management system.
- Founded in 2008, 15+ years of precision machining know-how
- Industries served: robotics, medical equipment, automotive, aerospace, automation, laser, LED, lithium battery and precision test instruments
- 200+ customers served, 50–60% of output exported worldwide
- ISO 9001:2015 certified, full material traceability and inspection documentation
- Slogan: CNC Machining Experts, Serving Global Industries
| Prototype / Sample | 5–10 working days |
|---|---|
| Small Batch (10–100 pcs) | 7–14 working days |
| Mass Production (100–1000 pcs) | 15–25 working days |
| Monthly Supply Ability | 10,000 pcs / month |
| Shipping | DHL / FedEx / UPS express, air freight, sea freight |
Scheduled production slots and multi-machine capacity keep lead times predictable, so repeat orders stay on the same delivery rhythm. Export-grade cartons with shock-proof foam protect every housing, and custom branding or labelling is available on request.
- Industrial robot elbow and wrist joint connections
- Collaborative and humanoid robot link assemblies
- Precision automation equipment and actuator mounts
- Pick-and-place and semiconductor handling robots
- Medical and laboratory robot structural joints
- AGV and mobile robot structural brackets
- ±0.01mm dimensional tolerance on critical features
- 5-axis simultaneous and turn-mill combined machining
- H7 bearing bore fit with ≤0.01mm concentricity
- One-setup boring of bearing seat and mounting face
- Solid 6061-T6 aluminium billet construction
- CMM-verified with full inspection report
- Full OEM / ODM non-standard customization
- Low MOQ from 1 piece, prototype to series
- Stable, predictable lead times and export packing
- ISO 9001:2015 certified quality system
Yes. Every housing is built to your STEP, IGES, STP or DWG file. Send the drawing with target tolerance and our engineers return a DFM review within 24–48 hours.
Standard is ±0.01mm with H7 bore fit and ≤0.01mm concentricity. For critical joints we can tighten to G7 and trial-fit before shipment.
We accept orders from 1 piece for prototypes and scale to thousands per month for series production.
Multi-machine capacity of 10,000 pcs per month, reserved production slots and in-process CMM checks keep lead times predictable: samples 5–10 days, small batch 7–14 days, mass production 15–25 days.
Clear anodize, black hard anodize, bead blast, mirror polish and laser marking, chosen to match your robot's appearance and corrosion requirements.
Yes. Every shipment includes a full-dimension inspection report and material certificate as part of our ISO 9001:2015 system.
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