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Flange Bearing Housing for Oil Pumps - Silica Sol Precision Cast Copper Alloy by China Suppliers & Factory
Product Description
Application & Name: This is a flange bearing seat used in traditional fuel engine cars and oil pumps.
Mechanical Properties (GB/T 1176)
Single cast test rod requirements:
- Tensile strength: ≥220MPa
- Bending strength: ≥130MPa
- Elongation: ≥3%
- Brinell hardness: ≥80HBW
Casting Tolerances & Finish
Tolerance standard: GB/T 6414-DCTG6-GCTG7.
Outer surface roughness: Ra 6.3.
Residual convex of runner and cap must remain within blank tolerance. Pits must not affect machine sizing evaluation or functional usage.
Outer surface roughness: Ra 6.3.
Residual convex of runner and cap must remain within blank tolerance. Pits must not affect machine sizing evaluation or functional usage.
Defect & Structure Limits
Low power requirements: No cracks, pores, or feather crystals allowed on the casting surface.
Small surface inclusions allowed; large surface inclusions must not exceed 0.5mm².
Grain size and porosity must be ≤ Grade 3.
Small surface inclusions allowed; large surface inclusions must not exceed 0.5mm².
Grain size and porosity must be ≤ Grade 3.
Machining & Compliance
After the reference hole machine is added (cutting approx. 1mm), no loose holes larger than 1mm² are allowed.
All substances used strictly meet the requirements of GB/T 30512 and CE RoHs2.0 regulations.
All substances used strictly meet the requirements of GB/T 30512 and CE RoHs2.0 regulations.
Development Background
1. Collaboration Initiation
This project represents a new customer partnership, marking our first development of these specific flange bearing seat parts.
2. Agreements & Compliance
Following mutual background investigations, both parties officially signed the "Mold Development Agreement", "New Product Trial Production Agreement", and "Supplier Integrity Agreement" prior to development.
3. Rapid Development & Precision Machining
With a short development cycle, the first sample delivery was set to 40 days. The processing complexity was high, requiring a mounting hole tolerance of ±0.012mm.
Led by our project department and personally overseen by our executive management, we evaluated the requirements, verified on-site processes, invested in new processing equipment, and successfully met all customer specifications by the second sample delivery.
Our Capabilities: We possess a robust technical development team capable of developing custom OEM parts in the precision casting field. We offer integrated services spanning from casting blanks to final precision machining, focused on providing high-quality, efficient products and services.
Frequently Asked Questions (FAQ)
Q1: What is the primary application of this flange bearing seat?
A1: It is a precision component designed for use in oil pumps within traditional fuel engine automobiles.
Q2: What standards govern the mechanical properties of the casting?
A2: The mechanical properties comply with the GB/T 1176 standard. Requirements include a tensile strength of ≥220MPa, bending strength of ≥130MPa, elongation of ≥3%, and Brinell hardness of ≥80HBW.
Q3: What are the strict tolerance and surface finish requirements for this part?
A3: The casting tolerance follows GB/T 6414-DCTG6-GCTG7, the outer surface roughness is Ra 6.3, and the mounting hole tolerance is highly precise at ±0.012mm.
Q4: How are surface and structural defects controlled?
A4: The casting surface must be free of cracks, pores, and feather crystals. Large surface inclusions must not exceed 0.5mm², grain size/porosity must be ≤ Grade 3, and no loose holes larger than 1mm² are allowed after machining the reference hole (approx. 1mm cut).
Q5: Does this product comply with international environmental regulations?
A5: Yes, all substances and materials used in the manufacturing process meet the requirements of GB/T 30512 and CE RoHs2.0 regulations.
Q6: What is your typical development timeline for OEM precision casting parts?
A6: For this project, the first sample delivery was completed in 40 days. We provide comprehensive, integrated OEM services from initial blank casting to final precision machining, backed by dedicated technical teams and advanced equipment.