Precision Custom Brass CNC Machining

FlexiTurn provides end-to-end custom CNC machining services for precision brass sleeve bearings and guide bushings, supporting customers from initial design review through prototyping, low-volume validation, and high-volume production. As a China-based precision machining enterprise, we combine advanced turning, 4-axis drilling, and precision grinding capabilities with rigorous quality control to deliver consistent, tight-tolerance components tailored to your motion system requirements. We support rapid prototyping, low-volume test runs, and high-volume serial production, all backed by full material traceability and transparent project communication.

Material Selection Support

We machine this component class from a range of copper alloys to match your application’s wear, corrosion, and cost requirements:

Standard grade: C36000 free-cutting brass for general industrial motion applications

High-wear upgrade: C93200 bearing bronze for heavy-load, extended-service-life conditions

Custom alloy grades available upon request, all supplied with certified mill test reports and full material traceability

We can support ASTM B16 and ASTM B505 material references; RoHS-compliant lead-free alloys are available upon request

Machining Capabilities

Leveraging our in-house 3-axis, 4-axis, and multi-axis CNC equipment, we configure optimized process routes for every order:

CNC turning for inner/outer diameters, end faces, and retaining grooves, with in-process concentricity control

4-axis indexed drilling for radial lubrication holes, locating pin holes, and threaded features, completed in a single setup to reduce cumulative indexing error

Optional precision internal grinding for ultra-tolerance bore mating surfaces

Full deburring and edge break on bores, holes, and contours to ensure clean, burr-controlled lubrication passages and safe assembly

Upfront Design for Manufacturability (DFM) support to optimize part geometry, reduce production cost, and shorten lead time

Tolerance & Quality Assurance

Every component passes through a layered inspection process to support consistent dimensional accuracy:

Dimensional tolerance: IT6–IT7 as-turned standard; IT5 achievable with finish grinding

Bore-to-OD concentricity: controlled to ≤0.008 mm

Surface roughness: Ra 0.2–1.6 μm, customizable per application requirements

100% dimensional verification via CMM and precision bore gauging

Full inspection documentation supplied with every shipment

Manufacturing controlled under our ISO 9001:2015-aligned quality management system

Why Work With FlexiTurn

Cost-effective precision: competitive pricing backed by China’s mature manufacturing ecosystem, without compromising quality

Flexible order scale: from single-piece prototypes to serial production runs, all handled under the same quality standard

Fast turnaround: dedicated project managers and streamlined in-house workflows to meet your time-to-market targets

Confidentiality protected: NDAs signed as required, with strict protection of your designs and intellectual property

One-stop service: from DFM consulting and precision machining to surface finishing and secondary operations, coordinated in-house

FlexiTurn — Precision Machining, Delivered with Trust.

Contact us today for a competitive quote on your custom brass bearing and guide bushing requirements.