CNC Bushing Turning

CNC bushing turning is one of our highest-volume turning services. Bushings are annular parts installed between shafts and bores. They reduce friction, guide positioning, and compensate for wear. Bushings are widely used in automotive suspension systems, hydraulic cylinders, construction machinery joints, industrial gearboxes, and power tools. Our CNC bushing turning covers bronze (tin bronze, aluminum bronze), carbon steel, alloy steel, stainless steel, and engineering plastics (POM, nylon). We machine straight bushings, flanged bushings, thrust bushings, threaded bushings, and custom shapes. Every CNC bushing turning job we deliver ensures precise fit and long service life.

Bushing machining features thin walls and high coaxiality requirements between inner bore and outer diameter. We use high-precision CNC lathes with spindle radial runout within 0.002mm. Custom fixtures complete outer diameter, inner bore, and end faces in a single setup. This fundamentally ensures coaxiality. For thin-wall bushings (wall thickness below 3mm), we use a step-by-step strategy: finish outer diameter, cut off, then finish inner bore. We use dedicated elastic fixturing to avoid clamping deformation. Our bronze bushings achieve inner bore roundness within 0.005mm. Wall thickness deviation is within 0.02mm. Clearance with mating shafts is uniform and stable.

Quality control for CNC bushing turning centers on inner bore size and wall thickness uniformity. We use pneumatic gauges for 100% inner bore inspection (measurement accuracy 0.001mm). This ensures inner diameter stays within tolerance. For bushing designs with oil grooves or oil holes, we use projectors to inspect groove position and dimensions. For appearance, we inspect inner and outer surfaces under 6000K light. Scratches, burrs, and machining marks are not allowed. Every batch includes an inner bore size distribution report. Customers can clearly see batch consistency levels. Our CNC bushing turning service is known for high precision and short lead times. Standard bushing orders take 10-20 days. We accept orders starting from 1 piece. Volume orders receive price discounts. Standard warranty is 1 year. We offer various surface treatments including chrome plating, phosphating, and coating to meet different wear and corrosion requirements.