CNC Precision Mechanical Parts

Shaft Components

Drive shafts, motor shafts, servo, spindle, camshafts

  • Material 45# steel, 40Cr, SS 304, aluminum 6061
  • Process CNC turning, OD grinding, heat treatment
  • Tolerance ±0.01mm
  • Lead Time 15-25 days
Finished shaft component — precision CNC turning
Finished shaft component — precision CNC turning

Product Details

Shaft components are the core of mechanical power transmission, widely used in motors, gear reducers and construction machinery. We excel at splined shafts, gear shafts and multi-step complex shafts — hobbing, helical gear cutting, bore honing, OD grinding and turn-mill in one setup, achieving runout ≤0.01mm and flank surface Ra0.4 for high-precision transmission.

Applications

  • Motor spindle shafts
  • Gearbox transmission shafts
  • Construction machinery drive shafts
  • Agricultural PTO shafts

Typical Size Range

Min
Φ3mm
Max
Φ300mm
Other
≤2000mm

Common Materials

Material GradeInternational StandardTypical Application
45# Steel AISI 1045 General drive and motor shafts
40Cr AISI 5140 High-strength transmission shafts
SS 304 AISI 304 Food, medical, chemical
Aluminum 6061 AA 6061-T6 Lightweight transmission

Process Capabilities

  • CNC turning (tolerance ±0.02mm)
  • OD grinding (tolerance ±0.005mm)
  • Spline hobbing / broaching
  • Helical gear hobbing (flank Ra0.4)
  • Turn-mill in one setup
  • Induction hardening + tempering
  • Dynamic balancing (G2.5)

Frequently Asked Questions

What is the minimum order quantity for shaft parts?

Samples start from 1 piece; bulk orders from 50 pcs. Prototypes are delivered in 3-5 working days.

Can you machine shafts with keyways, splines and threads?

Yes — our turn-mill machines complete keyways, end holes and internal threads in a single setup.

What balancing grade do you offer?

For high-speed shafts (>3000 rpm), we deliver G2.5 per ISO 1940-1 with full balance reports.

What hardness range can you achieve?

Standard induction hardening HRC 45-55, quenched & tempered HB 220-280 — adjusted to the application.

Detailed Content

Shaft Components

Shaft components are the core of mechanical power transmission, widely used in motors, gear reducers and construction machinery.

Core Process Capabilities

  • Spline hobbing / broaching: Both-end splines completed in one setup, with CNC-machined tooth root fillets and pitch cumulative error ≤0.015mm — ideal for splined shafts and output shafts in batch production.
  • Helical gear hobbing: Flank surface roughness Ra0.4, tooth profile accuracy DIN grade 7, hobbed directly on the shaft body — eliminating keyed joints for smoother transmission.
  • Turn-mill in one setup: Multi-step features, internal bores, end holes, square heads and inner/outer threads are completed in one setup, achieving coaxiality ≤0.01mm and axial play ≤0.02mm, avoiding secondary clamping errors.
  • OD grinding: Mating diameters reach dimensional accuracy ±0.005mm and roundness ≤0.003mm, ensuring reliable bearing and seal fits.