1A1 straight grinding wheels 80x3x2x20 S B2-01 100% cBN1 B 126

1A1 CBN Grinding Wheel – FEPA B126 (125/106 μm) | CBN1

Straight CBN grinding wheel (1A1) for rough grinding and high stock removal on hardened steels.
Designed for HSS, tool steel and other ferrous materials.

What it actually does:

Aggressive material removal with stable cutting performance.
Used for initial shaping and bulk stock removal before controlled grinding stages.

Grain size (B126 ≈ 125/106 μm):

Coarse grit for heavy-duty steel grinding.

• High stock removal rate
• Typical Ra ~ 0.8–1.5 μm
• Leaves visible grinding marks

Stable under heavy grinding conditions.

In practice:

This is a roughing wheel for steels.
Used as the first step before B107 → B91 → finer stages.
Focus is productivity and fast geometry removal.

Specification:

• Type: 1A1 (straight)
• Abrasive: Cubic Boron Nitride (CBN1)
• Grit: FEPA B126 ≈ 125/106 μm (ANSI 120/140)
• Concentration: 100%
• Body: P / S / Ap
  (Pressed / Steel / Aluplast)

Behavior:

• Aggressive cutting on hardened steels
• High productivity
• Stable grinding process
• Note: requires follow-up finishing

Body options:

• P: lighter, vibration damping
• S: maximum rigidity for heavy grinding
• Ap: balanced performance

Dimensions (D × X × T × H):

• D – outer diameter
• X – abrasive layer
• T – total thickness
• H – bore diameter

Use for:

• HSS grinding
• Tool steel
• Hardened components
• Rough grinding

Do not use for:

• Carbide
• Ceramics
• Non-ferrous materials