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| Brand Name: | Vigorous |
| Moq: | 1 Piece |
| Price: | Negotiable |
| Payment Terms: | T/T,L/C |
| Supply Ability: | 500–2000 pcs/month |
Custom Precision Stepped Shaft | CNC Turned Stainless Steel Shafts
| Field | Value |
|---|---|
| Meta Title | Custom Precision Stepped Shaft | CNC Turned Stainless Steel Shafts (66 characters) |
| Primary Keywords | precision stepped shaft, CNC turned shaft, custom machined shaft, stainless steel shaft, stepped shaft manufacturer, OEM shaft |
This precision stepped shaft is a multi-diameter, CNC-turned component designed to transmit torque, locate bearings, and align rotating assemblies with high concentricity. Each diameter step, shoulder, keyway and thread is machined to tight tolerance so the shaft fits reliably into gearboxes, motors, pumps and automation equipment.
The core of this product is its material and processing quality. We start from certified bar stock — stainless steel, alloy steel, brass or engineering plastic — and hold diameter tolerances down to ±0.005 mm, concentricity within 0.010 mm, and a surface finish as fine as Ra 0.4 µm on bearing journals. Every shaft is inspected before shipment.
| Item | Specification |
|---|---|
| Primary Material | Stainless Steel 304 / 316 / 303, Carbon Steel 1045, Alloy Steel 4140 / 42CrMo |
| Alternative Material | Brass H59/H62, Aluminum 6061/7075, Titanium, 20CrMnTi, engineering plastics |
| Primary Process | CNC turning (steps, shoulders, grooves, threads) |
| Secondary Process | CNC milling (keyway, flat, slot), cylindrical grinding, threading, drilling, splining |
| Diameter Tolerance | ±0.005 mm (ground journals) / ±0.01 mm (turned fits) |
| Concentricity / Run-out | ≤ 0.010 mm |
| Surface Roughness | Ra 0.4 – 1.6 µm |
| Heat Treatment | Hardening, tempering, carburizing, induction hardening, nitriding |
| Surface Finish | Zinc / nickel / chrome plating, black oxide, anodizing, polishing, passivation |
| Quality Standard | ISO9001, RoHS, full dimensional inspection report |
The table below shows representative stepped-shaft configurations. All step diameters, lengths and features are fully customizable — send us your drawing and we machine to your exact geometry.
| Model | Step Diameters (D1/D2/D3) | Total Length | Key Features | Surface Finish | Typical Use |
|---|---|---|---|---|---|
| PS-01 | Ø8 / Ø12 / Ø16 mm | 120 mm (est.) | 2 shoulders, M8 thread, keyway | Ra 0.8 µm | Small gearmotor |
| PS-02 | Ø10 / Ø16 / Ø20 mm | 180 mm (est.) | 3 shoulders, keyway, chamfers | Ra 0.4 µm | Pump / reducer |
| PS-03 | Ø12 / Ø20 / Ø28 mm | 240 mm (est.) | Ground journals, retaining ring groove | Ra 0.4 µm | Bearing shaft |
| PS-04 | Ø16 / Ø25 / Ø35 mm | 320 mm (est.) | Threaded ends, spline, keyway | Ra 0.8 µm | Industrial drive |
Each shoulder is turned square within 0.01 mm perpendicularity, giving bearings and gears a flat, positive seating face under load.
Bearing seats are cylindrical-ground to h6/g6 fits with Ra 0.4 µm, ensuring smooth rotation, minimal vibration and long bearing life.
CNC-milled keyways and splines with tight width tolerance transmit torque without backlash or key deformation.
Rolled or cut metric / UNC threads with protective chamfers and center holes for easy, damage-free assembly.
Optional hardening, carburizing or nitriding delivers a hard, wear-resistant surface over a tough, shock-absorbing core.
Stainless grades or zinc / nickel plating resist corrosion and wear, with polishing available for a premium finish.
Beyond stainless and alloy steel, our turning and milling lines handle a broad portfolio of materials, so the shaft can be matched to strength, corrosion, weight or cost requirements.
| Category | Materials | Typical Use |
|---|---|---|
| Stainless Steel | 304, 316, 303, 17-4PH | Corrosion-resistant shafts |
| Carbon / Alloy Steel | 1045, 4140, 42CrMo, 20CrMnTi | High-strength drive shafts |
| Non-Ferrous Metals | Brass H59/H62, Aluminum 6061/7075, Copper | Lightweight / conductive parts |
| Exotic Metals | Titanium, Tool Steel, Hardened Alloy | High-wear / high-load applications |
| Engineering Plastics | POM, Nylon (PA), PEEK, PTFE, ABS | Light-duty, non-magnetic parts |
Send your drawing, target material and quantity — our engineers will reply with a full quote and DFM feedback within 24 hours.
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