Product Description
This brass stepped bushing, also known as a brass stepped spacer or multi‑stage brass sleeve, is integrally fabricated on a CNC Swiss‑type automatic lathe from premium HPb59‑1 leaded brass bar stock. The whole process machines inner bore, stepped outer profiles and end faces in a single setup, followed by full deburring treatment. The surface retains genuine raw brass turning lines with no plating or extra coating, preserving the natural metallic property of brass. As an experienced custom manufacturer, we provide complete OEM custom service to produce bespoke cnc turned brass spacer. Every custom brass bushing maintains stable dimensional accuracy to serve as wear‑resistant locating and spacing components in precision mechanical systems.
Technical Specifications
| Product name |
Brass Stepped Bushing Spacer |
| Material |
HPb59‑1 Free‑Cutting Brass |
| Machining Process |
CNC Swiss‑Type Lathe One‑Piece Turning, Deburring |
| Max Outer Diameter |
12 mm |
| Overall Height |
7.5 mm |
| Structure |
Multi‑step outer shoulder + Smooth inner through bore |
| Surface Finish |
Natural raw brass turning finish, no electroplating, no coating |
| Standard Dimensional Tolerance |
±0.02 ~ ±0.05 mm |
| Customization |
Custom bore size, step dimension, height and tight tolerance available via OEM custom service |
Applications
Our brass stepped spacer and hpb59‑1 brass sleeve are widely used for automation equipment assemblies, electronic device locating structures, instrument hardware fittings, small transmission mechanism spacing, household appliance fastener assemblies, office equipment components and precision fixture positioning. The brass stepped bushing works as a wear‑resistant spacer and guide sleeve to reduce friction during cyclic mechanical movement.
Custom & OEM Service
We are a professional manufacturer offering full‑range OEM custom service for brass stepped bushing. Clients can submit 2D drawings, 3D STEP files or physical samples for quotation and prototyping. We support custom material grades, varied step geometries, custom bore diameters, non‑standard sizes and strict tolerance requirements. Both low‑volume prototype batches and high‑volume mass production for custom brass bushing and cnc turned brass spacer are acceptable. Our engineering team reviews manufacturability for every custom project before production.
Key Advantages
- One‑piece Swiss‑lathe machining eliminates assembly gaps, preventing positioning deviation caused by separated spare parts
- HPb59‑1 brass delivers excellent machinability and natural wear resistance, lowering later‑stage lubrication maintenance cost
- Tight dimensional tolerance control ensures smooth fitting, avoiding jamming issues during mechanical operation
- Natural unplated brass surface avoids coating peeling risk under continuous friction working conditions
- Flexible OEM custom service adapts to unique installation space instead of limited standard off‑the‑shelf brass sleeve sizes
Quality Control
Strict quality control runs through the full production workflow. Raw HPb59‑1 brass bar material certification is verified before processing. Critical dimensions of each brass stepped bushing are inspected with micrometers and calipers. Visual inspection for burr‑free edges and surface integrity is performed on finished parts. Dimensional inspection reports can be provided on request for custom orders of cnc turned brass spacer and custom brass bushing.
Shipping & Delivery
Sample orders for our brass stepped spacer normally take 3‑7 working days. Bulk OEM custom production lead‑time ranges from 7‑15 working days based on order quantity and machining complexity. We offer multiple shipping options including international express, air freight and sea freight. Each brass stepped bushing is individually protected with anti‑scratch packaging to prevent surface marks during transit.
Frequently Asked Questions
- Can I order non‑standard sizes for this custom brass bushing through OEM custom service?
Yes, as a custom manufacturer, we produce fully customized brass stepped bushing according to your drawings or samples.
- What tolerance level can you achieve for the hpb59‑1 brass sleeve?
Our standard tolerance is ±0.02‑0.05 mm, ultra‑tight tolerance can be customized for special precision requirements.
- Is electroplating or extra surface treatment available for the brass stepped spacer?
This base version uses natural raw brass finish; extra surface finishing can be added for separate OEM custom orders.
- Can you make prototype samples before mass production of the cnc turned brass spacer?
We support small‑batch prototype manufacturing for fit testing before full mass production.
- Which document formats are acceptable to start your custom service?
You can send PDF engineering drawings or STEP/IGS 3D files, or send physical samples for evaluation and quotation.
