Our precision shafts are CNC turned, cylindrically ground, and fully CMM-inspected to tolerances of h6/h7/h8. Available in EN8, EN24, EN31, and stainless steel with surface hardness up to HRC 60, they serve applications from industrial gearboxes and conveyors to defence and automotive drive systems.
Technical Specifications
Key Features
Keyways, splines, and threaded ends as required
Induction hardening available on request
Full CMM inspection with dimensional report
CNC turned and cylindrically ground finish
EN8 / EN24 / EN31 material grades stocked
Typical Applications
Manufacturing Process
Bar Stock Incoming
EN8/EN24/EN31 bar with MTC; diameter and straightness check; hardness spot-test per heat
Rough Turning
CNC turning to within 0.5mm of finish; centres drilled for between-centres grinding
Heat Treatment
Through-hardening or case-hardening per drawing; hardness check after treatment (HRC 40–55)
Finish Turning & Milling
Finish turn to h6 tolerance; keyways/splines milled; threads cut; all dimensions first-off inspected
Cylindrical Grinding
Journal diameters ground to h5/h6 tolerance (Ra 0.8); runout < 0.01mm checked on V-blocks
Final Inspection
Full dimensional report: all diameters, keyways, threads, runout, surface finish; hardness certificate
Standards & Compliance
ISO 286-1
Limits and Fits (Shaft Tolerances)
h5/h6/h7 tolerance grades for precision shaft journals
ISO 1101
Geometrical Product Specifications (GD&T)
Runout, cylindricity, and straightness tolerances on shafts
IS 3073
Case Hardening Steels
Material and heat treatment requirements for case-hardened shafts
DIN 6885
Parallel Keys and Keyways
Keyway dimensions and tolerances for shaft-hub connections
Quality Control Procedures
MTC + hardness sampling on incoming bar
First-off dimensional check after rough turning
Hardness test after heat treatment (certificate issued)
Diameter tolerances on all journals (h6 tolerance — calibrated micrometer)
Surface finish measurement Ra 0.8 on ground journals
Runout check: < 0.01mm TIR on V-blocks
Keyway/spline dimension check (vernier or profile gauge)
Full dimensional report issued with each batch
Related Products
Custom Worm Gearboxes
Precision custom worm and worm wheel gearboxes for actuation and drive applications.
View Product →Gear Rack & Pinion Assemblies
Precision hobbed gear racks and pinions for linear motion and drive systems.
View Product →Crane Components
Precision machined and fabricated components for overhead and gantry cranes.
View Product →Need a Custom Solution?
Our engineering team can design, machine, and test components to your exact specification. Get in touch for a no-obligation quotation.
Request a Quote