Precision CNC Machined 6061 Aluminum Wheel Hub with Keyway | 8-Bolt Gearbox Hub
From concept to production in 25 days High-quality, cost-efficient rapid tooling solution.
25 Days
Total Lead Time
±0.02 mm
Precision Tolerance
100K+ Shots
Mold Life
0 PPM
Quality Target
Project Overview
CNC machining of a compact Al6061 wheel hub for a Yard.bot robotic lawn-care gearbox / wheel-drive assembly. The component has an Ø84 mm flange, 55 mm overall length, eight M8 x 1.25-6H threaded mounting holes on an Ø71.4 mm bolt circle, and a precision Ø15.88 H8 keyed bore. The finished part weight is approximately 0.33 kg.
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The Challenge
The functional challenge is maintaining the relationship between the keyed shaft bore, mounting face and eight-hole bolt pattern. The Ø15.88 H8 bore has a tight fit requirement and the drawing also controls bore orientation/runout to datum A, face flatness, and hole position relative to datums A and B. Any bore-size error, keyway offset, face distortion or bolt-circle position error can cause difficult assembly, hub runout or poor torque transfer in the drivetrain.
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Our Solution
We planned the machining around stable datum control. The main turned features, flange faces and hub OD are established first, followed by precision finishing of the H8 bore. The keyway is machined from the bore datum, and the eight M8 threaded holes are indexed on the specified Ø71.4 mm bolt circle. Critical dimensions and geometric relationships are checked with precision bore measurement and CMM / suitable positional inspection. Deburring is controlled carefully around the keyway and threads, while unspecified tolerances follow ISO 2768-mK and unspecified chamfers are C0.5.
Project Results
The finished aluminum wheel hub provides a lightweight, accurately located interface between the drive shaft / gearbox and the wheel-side assembly. Consistent bore fit, keyway geometry, face control and bolt-pattern accuracy support repeatable installation, reduced runout and reliable torque transmission, while the Al6061 construction keeps component mass low for robotic outdoor equipment.
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Customer Feedback
“
The tooling quality exceeded our expectations. The parts met all requirements and the lead time was impressive. We highly recommend their rapid tooling service.
— Project Manager, Automotive Lighting Company
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