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Help CenterPrecision CNC Machined Alloy Steel Pump Bearing Cover, IATF16949, Surface Roughness Ra0.4μm
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As a professional manufacturer based in Changzhou, Jiangsu, China, Changzhou Hongxinyutai Precision Mold Co., Ltd. (established 2017) specializes in high-precision CNC machined components. Our Precision CNC Machined Alloy Steel Pump Bearing Cover is engineered to meet the rigorous demands of fluid handling systems, offering exceptional durability and dimensional accuracy. With a surface roughness of Ra0.4μm and manufacturing under TS16969 quality management system, this product ensures reliable sealing and long service life for your pump applications.
Our factory spans 1,000–3,000 square meters with a dedicated team of 51–100 skilled employees, allowing us to deliver consistent quality and on-time delivery. We serve global markets including North America, Europe, Asia, and Oceania, providing customized solutions for various pump types. The bearing cover is machined from premium alloy steel, heat-treated for optimal hardness, and precision ground to achieve the specified surface finish.
Key Features & Benefits:
- Material Excellence: Manufactured from high-strength alloy steel (e.g., 40Cr, 42CrMo) for superior wear resistance and fatigue life.
- Surface Finish: Ra0.4μm (or better) ensures minimal friction, reduced oil leakage, and extended bearing life.
- Precision Machining: CNC turning, milling, and grinding with tolerances up to ±0.005mm for perfect fit with pump housing and shaft.
- Quality System: Produced under TS16969 (automotive-grade quality management) to ensure process control and traceability.
- Customizable: Dimensions, mounting holes, oil grooves, and sealing features can be tailored to your specific pump design.
- Heat Treatment: Optional quenching and tempering to achieve target hardness (HRC 28–32) for impact resistance.
- Surface Treatments: Available in black oxide, phosphating, or zinc plating for corrosion protection.
- Packaging: Individually wrapped in anti-rust paper and foam-lined boxes to prevent damage during transit.
Technical Specifications (Typical):
| Parameter | Value |
|---|---|
| Material | Alloy Steel (40Cr, 42CrMo, or equivalent) |
| Surface Roughness | Ra ≤ 0.4μm |
| Diameter Tolerance | ±0.01mm – ±0.05mm (customizable) |
| Concentricity | ≤ 0.02mm |
| Hardness | HRC 28–32 (as quenched & tempered) |
| Certification | TS16969 |
The bearing cover is a critical component that secures the bearing in the pump housing, prevents contamination ingress, and retains lubricant. Our precision machining ensures a seamless interface, reducing vibration and noise in operation. The Ra0.4μm finish minimizes friction between the seal and the cover, extending seal life and reducing maintenance costs.
Why Choose Changzhou Hongxinyutai?
- Over 6 years of experience in precision mold and CNC machining (since 2017).
- Factory size of 1,000–3,000 sqm with advanced CNC lathes, milling machines, and grinding equipment.
- 51–100 employees including skilled engineers and quality inspectors.
- TS16969 certified quality management system ensures every part meets strict standards.
- Flexible production: from prototypes to mass production (100–10,000+ pieces).
- Global shipping from Jiangsu, Shanghai, or Shenzhen ports with fast lead times.
- Main markets cover 15+ regions worldwide, proving our reliability and competitiveness.
We have successfully supplied precision bearing covers to pump manufacturers in North America, Europe, and Southeast Asia, receiving positive feedback on dimensional consistency and durability. Our team provides free technical consultation to help you optimize the design for manufacturability and cost savings.
Frequently Asked Questions (FAQ):
-
Q: What is the typical lead time for this product?
A: For standard sizes, lead time is 15–20 working days. Custom designs may require 25–30 days depending on complexity. We can expedite for urgent orders upon request. -
Q: Can you machine covers from other materials like stainless steel or brass?
A: Yes, we can use stainless steel (304, 316), brass, or aluminum based on your application. Alloy steel is our standard for high strength and wear resistance. -
Q: Do you provide samples before mass production?
A: Absolutely. We offer sample approval (T1/T2) before full production. Samples are charged and refundable upon bulk order. -
Q: How do you ensure the Ra0.4μm surface roughness?
A: We use precision grinding and polishing processes. Our in-house surface roughness tester (Mitutoyo) checks every batch to guarantee compliance. -
Q: Is the TS16969 certification valid for automotive pump applications?
A: Yes, TS16969 is an automotive quality standard that ensures process control, failure mode analysis, and continuous improvement, making it suitable for any high-reliability pump. -
Q: What is the minimum order quantity?
A: MOQ is 100 pieces for standard designs. For custom designs, MOQ may be 500 pieces. We can discuss lower quantities for initial trials. -
Q: How do you package the bearing covers for export?
A: Each cover is individually wrapped in anti-rust paper, then placed in a corrugated box with foam inserts. For sea freight, we use wooden crates to prevent moisture and impact. -
Q: Can you add oil grooves or sealing features?
A: Yes, we can machine oil grooves, O-ring grooves, or labyrinth seals per your drawings. Our engineering team will review the design for optimal performance.
With our dedicated quality control, competitive pricing, and global logistics network, Changzhou Hongxinyutai is your trusted partner for precision pump components. Contact us today to discuss your requirements or request a quotation. We are ready to support your project from concept to delivery.
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