Carbon Steel Mounting Assembly with Four Bolt Round Flange Hub and Machined Bore

We offer the four bolt round flange hub in carbon steel for consistent fit across runs. Diameter tolerance, fit class, and surface texture are held as primary checkpoints for the hub. Provide detailed drawings when bolt circle and pilot diameters are critical to your assembly stack-up. Precision-machined drivetrain components are produced at our IATF 16949 / ISO 9001 Jiangsu plant. The facility supports in-house anodizing, black oxide coating, and chemical plating, supporting automotive, medical equipment, and automation projects. Pricing and lead time are driven by tolerance band, surface texture requirement, and material selection. Order volume and inspection scope also directly influence overall project delivery timing.