High-precision H59 brass bushing Trustworthy CNC machined bearing bushing for mechanical equipment.

The most significant advantage of CNC-machined brass bushings lies in their exceptional dimensional accuracy and stable fit. Using high-precision CNC lathes, the inner diameter tolerance of the bushing can be stably controlled within H7 grade (±0.015mm), with roundness error ≤0.005mm and cylindricity error ≤0.008mm. In the field of precision instruments, the clearance between the inner hole and shaft of an 8mm diameter brass bushing can be precisely set between 0.01-0.02mm, ensuring smooth operation of the moving parts.

The precise guarantee of coaxiality between inner and outer circles is particularly outstanding. Through a single clamping operation, CNC turning can achieve a coaxiality of ≤0.015mm between the inner and outer circles. For brass bushings in servo motor bearing housings, the perpendicularity of the end face to the axis is controlled within 0.01mm, ensuring precise positioning after installation.

High-precision H59 brass bushing Trustworthy CNC machined bearing bushing for mechanical equipment.

I. Integrated Machining brass bushing of Complex Structures and Functional Features

1. Precision Machining of Lubrication Structures Demonstrates Technological Strength.

1. Micro-milling cutter:A spiral lubricating oil groove can be machined on the inner surface of the bushing, with a groove width of 0.8 mm, a groove depth of 0.3 mm, and a lead accuracy of ±0.05 mm.

2. Precise Realization of Positioning and Installation Features:

Keyways, threads, or locating planes are machined on the outer diameter of the bushing, with the relative positional accuracy between these features controlled within 0.02 mm. For brass bushings used in automotive steering systems, the parallelism between the limiting plane on the outer diameter and the inner hole axis is ≤0.01 mm, ensuring reliable function after installation.

II. Optimization and Improvement of Material Properties:

1. Brass materials such as H62 and H65 exhibit excellent performance in CNC machining.

By optimizing cutting parameters, an inner hole surface roughness of Ra0.4-0.8 μm can be obtained. Good surface integrity reduces the bushing break-in time by 50% and initial wear by 60%.

2. Control and Application of Work Hardening Effect: Reasonable cutting depth and feed rate can form a uniform hardened layer on the surface, with a depth controlled at 0.05-0.1mm, increasing hardness by 15-20%. This hardened layer improves wear resistance without affecting the toughness of the substrate. Brass bushings used in compressor connecting rods, after CNC machining, have a wear life extended by 2 times.

3. Full utilization of material thermal conductivity.

The excellent thermal conductivity of brass, combined with precision-machined surfaces, allows for rapid dissipation of frictional heat. Temperature rise under high-speed operating conditions is reduced by 30% compared to ordinary steel bushings, effectively preventing thermal seizing.

III. Manufacturing Efficiency and Quality Assurance

1. Flexible production capacity adapts to diverse needs.

The production line can complete the switching processing of bushings of different specifications within 15 minutes, including adjustments to parameters such as inner diameter, outer diameter, and length.

2. Intelligent quality control.

An online measurement system automatically detects key dimensions every 50 pieces processed, compensating for tool wear in real time. An online monitoring system for inner hole roughness ensures that the surface quality of each bushing meets design requirements, with a near-zero missed inspection rate. V. Performance Breakthroughs in Special Applications

1. Outstanding Performance in High-Speed, Light-Load Applications.

The precise fit and smooth surface achieved through CNC machining are key to this performance in miniature brass bushings used in precision instruments.

2. Excellent Adaptability to Corrosive Environments.

The brass bushings, with their dense surface obtained through precision machining, withstand salt spray corrosion for up to 1500 hours. A special surface treatment process extends their service life by three times.

3. Reliability in Reciprocating Motion Scenarios.

The brass bushings for CNC machine tool guideways, with a fit clearance controlled at 0.015-0.025mm, maintain stable precision and show no significant wear after 5000 hours of continuous operation at a reciprocating motion frequency of 120 times/minute.

Company Profile

    We are a manufacturer integrating industry and trade. We have more than 20 years of experience in production technology. We are located in Dongguan City, Guangdong Province, China. We have advanced high-end professional production and processing technology, and are committed to innovative R&D and production. After years of  market tempering and exploration, it has high-quality   technical management personnel, experienced designers, R&D personnel and a   perfect company management system cnc precision.

5-axis CNC workshop

         Our factory has a plant area of about 2,000 square meters and masters core processing technologies. It has high-end precision production equipment cnc precision: CNC lathes, 5-axis CNC, 4-axis CNC, stamping equipment, die-casting equipment, etc. 2.5-dimensional detection equipment ​

two-dimensional testing

cnc precision surface treatment

          For surface treatment, our suppliers have been working with us for many years. They have rich experience and are familiar with all the quality requirements of each other. The quality is stable and more guaranteed. Such as: heat treatment, spray painting, powder coating, blackening, silver/gold plating, electrolytic polishing, nitriding, phosphating, nickel/zinc/chromium/TiCN plating, anodizing, polishing, passivation, sandblasting, galvanizing, heat treatment , hardening, laser marking, etc. according to customer requirements. Aluminum alloy surface oxidation

Product Packaging

Packaging Details

1. Commercial packaging: 1pc/plastic bag + color box +carton + pallet;
2. Industrial packaging: (1). plastic tube + carton + pallet; (2). plastic bag + kraft paper + carton + pallet;
3. According to the requirement of customer.

FAQ

Q1: Where can I get product & price information?

A1: Send us an inquiry e-mail, we will contact you once we received your mail.

Q2: How long will I get the sample?

A2: Depends on your specific items, within 3-7 days generally.

Q3: What kinds of information do you need for a quote?

A3: Kindly please provide the product drawings in PDF, if provide in STEP or IGS will be better.

Q4: What are the payment terms?

A4: We accept 50% as a payment deposit, when the goods are prepared, we shoot photos or videos for your check, and then you can pay the balance. For small quantities, we accept Paypal, the commission will be added to the order. For big amounts, T/T is preferred.

Q5: How to deliver the goods?

A5: We deliver the products by courier company.

Q6: Are you a trading company or factory?

A6: We are factory direct with 17 experienced engineers and more than 50 employees as well approximate 3,000m2 workshop area.

Q7: What shall we do if we don't have drawings?

A7: Please send your sample to our factory, then we can copy and provide you better solutions. If send us pictures or drafts with dimensions(Length, Height, Width), CAD or 3D file will be made for you.

Q8: Can we get some samples before mass production?

A8: Absolutely yes.

Q9: Will my drawings be safe after sending them to you?