Precision Cast Iron Bearing Housings, Covers & Caps

Finished-Machined Components for OEM Applications

Yile Machinery specializes in the manufacturing of custom cast iron bearing housings, covers, and end caps for Original Equipment Manufacturers (OEMs) and major industrial applications. We provide a complete manufacturing solution, transforming raw casting into a precision-machined component that is ready for assembly on your production line.

Our expertise in both foundry processes and CNC machining ensures every part meets the highest standards for fit, performance, and reliability.

The Critical Role of Precision in Bearing Housings

A bearing cover is more than just a cap; it is an engineered component critical to the lifespan of your equipment.

• Ensures Bearing Alignment: Precise machining of the mounting face and bearing bore guarantees that the housing does not distort the bearing, preventing premature wear.

• Provides Effective Sealing: A perfectly flat and smooth sealing face is essential for gasket or O-ring performance, keeping lubrication in and contaminants out.

• Maintains Positional Accuracy: The concentricity between the bearing bore and the bolt hole pattern is critical for proper assembly and shaft alignment.

Our Integrated Manufacturing Process: From Casting to Finished Part

We control the entire production process to guarantee quality and consistency.

1. High-Quality Iron Casting:

• We begin by casting the raw component using high-grade Grey Iron (for excellent vibration damping and machinability) or Ductile Iron (for superior strength and impact resistance).

• Our resin sand molding process produces castings with excellent dimensional stability and a superior surface finish, reducing final machining time.

• Every batch of molten iron is analyzed with a spectrometer to certify its chemical composition and ensure it meets the required material grade (e.g., GG25, GGG50).

2. Precision CNC Machining:

• The raw castings are then machined in our advanced CNC machining centers.

• We machine the bearing bore, bolt holes, and mounting face in a single setup to ensure perfect concentricity and perpendicularity.

• This process guarantees that every housing cover in a production run has identical, tight tolerances, ensuring interchangeability and consistent assembly performance.

Fully Customizable for Your Application

We manufacture a wide range of custom bearing housing components based on your specific designs, including:

• Flanged Bearing Housings

• Bearing End Covers and Caps

• Bearing Retainer Plates

• Pillow Block Housings

• Take-Up Unit Housings

These components are essential for industries such as:

• Gearbox and Transmission Manufacturing

• Electric Motors and Pumps

• Conveyor Systems and Material Handling

• Agricultural and Construction Machinery

• Industrial Fans and Blowers

Quality Assurance for OEM Confidence

We provide the documentation and verification you need to be confident in our products.

• Material Certification: Mill Test Reports (MTRs) are available for all castings.

• Dimensional Inspection Reports: We can provide CMM (Coordinate Measuring Machine) reports to verify that all critical dimensions, tolerances, and geometric features meet your drawing specifications.

• 100% Final Inspection: Every finished part is visually and dimensionally checked before shipping.

Request a Quote for Your Custom Bearing Housing

Send us your technical drawing, material grade, annual quantity, and any specific testing or finishing requirements. Our team will provide a competitive quote for a fully-machined, assembly-ready component.