S45C Carbon Steel Column Base | Flange Support Bushing for Guide Shaft

This precision column base is key component for measuring equipment & fixture columns, made of tempered S45C steel via turn-mill machining. Integrated flange + cylindrical bore design: inner bore fits guide column tightly, side set-screw holes lock shaft to avoid shifting, guarantees high coaxial precision for precision measuring machines.

Core Specs

Industries: Precision measuring instruments, testing machine parts, automation fixture, custom precision equipment

Process: S45C steel blank → quenching & tempering → CNC turning → flange milling → drilling & tapping → deburr & chamfer → anti-rust finish

Precision: Inner bore ±0.02mm tolerance, flange parallelism ≤0.05mm, coaxiality ≤0.03mm, inner surface Ra1.6

Equipment: CNC lathe, VMC, heat treatment furnace, tapping center

Material: Tempered S45C steel, excellent hardness & wear resistance

Post-processing: Deburr, chamfer, black oxide, chrome plating, anti-rust oil

Lead time: Samples3-4d, bulk6-11d

Advantages

✅ Double-ear flange ensures uniform fixing & stable installation

✅ Precision bore enables smooth tight fit for guide column

✅ Side set-screw holes lock shaft against rotation & axial slip

✅ Tempered S45C avoids deformation after repeated assembly

Tempered S45C column base, precision bore guides pillar; flange + set screw locking for steady precision equipment mounting.

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