Stainless Steel Large Precision Flange Bearing Housing | Specialized Support & Positioning Component for Heavy-Duty Industrial Equipment

This product is a stainless steel large precision flange bearing housing, a core support and positioning component in heavy-duty industrial equipment, chemical pumps, fans, agitators, and large transmission systems. Made of 304/316 stainless steel, it is manufactured via integrated large-scale CNC turning and milling compound processing, flange drilling, internal rib forming, and precision end face grinding. Strict control over coaxiality, circular runout, and end face perpendicularity ensures long-term stability and rotational accuracy under high load, high speed, and strong corrosion conditions. The flange is equipped with evenly distributed mounting holes, and the internal reinforcing rib design significantly improves rigidity, combining lightweight construction with deformation resistance, while meeting fluid guidance or weight reduction requirements.

Core Processes & Parameters

Application Industries: Chemical pump and valve equipment, large fans, agitators, marine engineering equipment, food and pharmaceutical machinery, heavy-duty industrial transmission systems

Manufacturing Process: Stainless steel cutting → rough turning/milling → precision turning of inner/outer circles → flange drilling and tapping → internal reinforcing rib processing → end face precision grinding → deburring and chamfering → surface polishing/passivation

Machining Precision: Key dimensional tolerances are strictly controlled within ±0.01mm, with inner hole circular runout ≤0.008mm, end face perpendicularity ≤0.01mm, and surface roughness Ra1.6, ensuring bearing installation coaxiality and equipment operation accuracy

Core Production Equipment: Large CNC lathes, turn-mill composite machining centers, CNC drilling and tapping centers, precision grinders, surface treatment equipment

Material Performance: 304/316 stainless steel with tensile strength ≥520MPa, excellent acid and alkali corrosion resistance, and high temperature resistance, suitable for harsh conditions such as humidity, corrosion, and food-grade environments, with no rust or deformation after long-term use

Available Post-Processing: Deburring, sharp edge chamfering, surface polishing, natural passivation, electrolytic polishing, custom engraving and marking

Lead Time: 7-10 days for samples, 10-20 days for small-to-medium batches; lead times for large orders can be negotiated based on production capacity

Key Product Advantages

High-Strength Corrosion-Resistant Material: Made of 304/316 stainless steel, combining high strength with excellent corrosion resistance, suitable for scenarios requiring rust and corrosion resistance such as chemical, food, and marine engineering, solving the problem of carbon steel parts being prone to rust and corrosion

Ultra-Precision Machining: Integrated turn-mill forming, with strict control over inner hole coaxiality, flange mounting hole position, and end face perpendicularity, ensuring perfect assembly of bearings and shafts, and guaranteeing equipment operation coaxiality and stability

Reinforcing Rib Structure Design: Optimized internal reinforcing rib design significantly improves rigidity and impact resistance, while reducing weight and optimizing fluid distribution, suitable for heavy-load and high-speed conditions

Comprehensive Post-Processing Services: We provide full-process surface treatment from polishing to passivation, and can customize surface solutions such as food-grade and corrosion-resistant according to customer needs to adapt to working conditions in different industries

Stable Bulk Delivery: Mature large-part processing technology and quality control systems ensure stable delivery of large-size, high-precision orders, guaranteeing customer project schedules and supporting long-term supporting cooperation

Quality Control

Each flange bearing housing undergoes strict full-process quality inspection, including dimensional tolerance testing, geometric tolerance testing, surface defect testing, hardness/corrosion resistance testing, to ensure 100% compliance with drawing technical requirements and prevent defective products from leaving the factory.