TG&P vs Centerless Ground Bar

TG&P and centerless ground bar are both used for precision applications, but they serve different levels of tolerance and finish requirements.

👉 Learn more about TG&P and how it compares to precision grinding.

Key Differences ( CG vs TG&P )

FeatureTG&P BarCenterless Ground (CG)
ToleranceTightVery tight
Surface FinishSmoothSuperior
StraightnessGoodExcellent
Final SizingPre-sizedFinal size control

What Is TG&P Used For?

  • General precision shafting
  • Ready-to-machine bar
  • Applications with standard tolerance requirements

What Is Centerless Ground Used For?

  • Ultra-tight tolerance parts
  • High-precision components
  • Final diameter control
  • Medical and aerospace applications

When to Choose TG&P

Use TG&P when:

  • Standard precision is acceptable
  • Cost needs to be controlled
  • Minimal machining is required

When to Choose Centerless Ground

Use CG when:

  • Tight tolerances are critical
  • Surface finish requirements are high
  • Parts require exact sizing

Upgrade Path

Many applications start with TG&P and are then:
➡️ Centerless ground to final size

This allows for:

  • Better accuracy
  • Improved finish
  • Consistent results

Request a Quote - CG, TG&P, PG Bars

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