Precision Shafting

Precision shafting is most commonly produced by centerless grinding, which delivers superior roundness and diameter control compared to turned or cold-drawn bar stock. The right material grade and condition is what seperates a good shaft from one that causes vibration, wear, or premature failure.

Common Stainless Steel Grades for Precision Shafting

Stainless steels are widely used for corrosion resistance, strength, and clean machining.

17-4 PH Precision Shafting
Available in H900, H1025, and H1150 conditions for high strength and dimensional stability.
416 Stainless Precision Shafting
A free-machining grade ideal for high-volume shaft production.
316 / 316L / 316LVM Shafting
Used for medical, food-grade, and corrosion-critical applications.
420 & 440C Shafting
Heat treated for wear resistance and bearing-style applications.

Carbon & Alloy Steel Precision Shafting

For industrial motion systems, power transmission, and automation:

1045 Precision Shafting
A workhorse grade for general mechanical shafts.
1144 Stressproof® Shafting
Known for excellent straightness and fatigue strength.
4140 / 4140 HT Shafting
Heat-treated alloy steel for high-load and rotating shafts.
4340 Precision Ground Shafting
Used where extreme strength and toughness are required.

Medical & High-Performance Shafting Grades

For tight tolerance and regulated applications:

316LVM Precision Shafting
MP35N Shafting
Cobalt Chrome Shafting
Nitinol Shafting (small diameter wire and rod)

These materials often require micro-finish grinding, strict straightness control, and full material traceability.

Why Centerless Ground Precision Shafting Performs Better

Compared to cold-drawn or turned shafts, centerless ground shafting provides:

Tighter diameter tolerances
Improved roundness
Better surface finish (often 8–16 Ra)
Consistent performance in Swiss lathes, linear motion systems, and bearing assemblies