High Precision Flange Bushing

The most feared thing in precision assembly is "this one fits, the next one doesn't"-having to pick through a box of bushings is purely wasted labor. When we make a High precision flange bushing, we treat dimensional consistency as our top priority. The inner bore, outer diameter, and flange face are machined in a single setup, and key dimensions are controlled via Statistical Process Control (SPC). Batch consistency is excellent-every piece fits the same, no picking, no fitting, and assembly line efficiency jumps immediately.

For a High precision flange bushing, the flange edge is not just decoration-it serves positioning and anti-rotation functions. During assembly, the flange face seats it in place, eliminating the need for additional locating pins. We use high-precision CNC lathes plus grinders, with inner bore tolerance at ±0.005mm, perpendicularity between flange face and outer diameter within 0.01mm, and surface ground to below Ra0.8μm. Once installed, it fits tightly-no leakage, no looseness. Commonly used materials include 45#, 40Cr, stainless steel, or bearing steel, selectable per drawing. High precision flange bushings are most widely used in hydraulic valve blocks, motors, reducers, and automation equipment. With precise mating surfaces, both torque and positioning are stable-worry-free to use, and no need for later patching. Every piece undergoes full inspection before shipping, with key dimensions CMM-sampled, and third-party inspection accepted. We have been making precision parts in Yuhuan for over a decade, under IATF 16949. Send us your drawings; sampling takes 15–20 working days, small batches accepted-try the fit first, scale up once satisfied.

● Hydraulic valve blocks, hydraulic components

● Motors, reducers

● Automation equipment, packaging machinery

● Precision tooling, fixtures

Customization from drawings and reverse engineering from samples supported, no strict MOQ. Inner bore, outer diameter, flange edge dimensions and tolerances all adjustable per drawing. Locating holes and anti-rotation slots can be machined. Custom samples take 15–20 working days, appropriately longer for complex processes.

Operating under IATF 16949. Key dimensions controlled via SPC. 100% final inspection before shipment, CMM-sampled. Third-party inspection accepted, inspection reports accompany goods.

Standard: 30% deposit in advance, 70% balance before shipment. EXW and FOB supported. USD, EUR, CNY accepted. Larger orders = more favorable unit price, tiered pricing by volume.

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