Our CNC machined set screw bushing, also known as splined bore locking hub, is precisely manufactured from high-strength 6061-T6 aluminum alloy via integrated CNC turning and CNC milling operations. Precision internal splined bore is milled to match splined motor shafts for synchronous power transfer; multiple lateral drilled & tapped set screw holes enable firm shaft locking to prevent circumferential slipping during operation. After complete deburring and precision cleaning, components go through black hard anodizing surface finishing to boost abrasion resistance and anti-corrosion capability. As an experienced custom manufacturer specializing in OEM production, we provide flexible custom service to modify outer diameter, overall length, inner bore size, internal spline parameter, set screw quantity & position based on customer technical drawings or physical samples to satisfy diversified mechanical transmission needs across multiple industrial fields.

The black anodized aluminum hub is widely applied as transmission connection component across civilian industries:

• stepper/servo motor linkage
• automation linear drive equipment
• precision instrumentation transmission parts
• medical lab testing machinery
• new energy small power equipment
• office automation device
• industrial conveyor accessory
• precision robotics transmission assembly

As a trusted custom manufacturer, comprehensive OEM & custom service is supported for all order types:

• Custom overall length, outer diameter and central bore dimension against customer samples or engineering drawings
• Custom internal spline tooth count, tooth depth and spline pitch for matching different motor shafts
• Custom set screw hole count, thread size and hole distribution layout on cylinder side
• Diversified optional surface treatments: assorted anodize colors, sandblasting, polishing via custom service
• Flexible MOQ to accommodate prototype small batch trial orders and large-volume mass OEM manufacturing.

• Precision CNC milled internal splined bore eliminates idle rotation & power loss caused by poor shaft fitting of low-precision hubs, lowering equipment energy waste.
• Multiple set screw locking points disperse fastening stress to avoid hub loosening under long-period high-load running, reducing after-sale maintenance cost.
• Black hard anodized layer improves aluminum surface hardness to avoid scratch & oxidation damage in harsh working environments, cutting component replacement frequency.
• Strict ±0.02mm precision tolerance avoids assembly mismatch problems brought by irregular standard off-the-shelf hubs.
• One-stop OEM custom service solves non-standard shaft installation trouble when standard-size hubs cannot fit bespoke equipment design.

• Incoming raw material inspection to verify 6061-T6 aluminum certification before production launch.
• First article inspection after CNC turning and spline milling setup to confirm dimensional compliance.
• Thread go/no-go gauge inspection for all tapped set screw holes to guarantee interchangeable assembly.
• Full dimensional inspection on finished hubs with precision micrometer & caliper covering all critical specs.
• Final surface appearance and coating check post anodizing before packaging & shipment.

Can I customize inner spline size for my unique stepper motor shaft?

Yes, our OEM custom service fully supports spline parameter customization as per your drawings or samples.

What’s your standard dimensional tolerance for this splined bore locking hub?

Key critical dimensions are controlled at ±0.02mm, tighter tolerance is negotiable for ultra-precision projects.

Is black hard anodizing the only available surface finish option?

No, various anodizing colors and alternative surface treatments are available through our custom service.

Do you accept small prototype orders for CNC machined set screw bushing?

We accept low-volume trial orders alongside bulk OEM production with flexible MOQ.