Vitrified CBN abrasive ring
Vitrified Bond Diamond/CBN Grinding Wheels

Vitrified CBN abrasive ring

These solid vitrified CBN abrasive rings are designed for internal grinding of hardened steel, high-speed steel, tool steel, and die steel components.

The all-CBN construction with no metallic core allows the ring to be bonded or pressed directly onto a grinding spindle or mandrel, making it well suited for small-bore internal grinding operations where dimensional precision and surface finish are critical.

Vitrified bond offers excellent form retention, free-cutting action, and compatibility with water-soluble coolants.

Add to quote
SKU: GW-VC-R Category: Tags: ,

Specifications

Parameter Imperial Metric
Product type Vitrified CBN abrasive ring (solid, no core)
Abrasive CBN (cubic boron nitride)
Bond type Vitrified bond
Hardness Custom
Grit / mesh Custom
Available sizes (D × H × T) 0.08″×0.04″×0.08″
0.12″×0.08″×0.12″
0.20″×0.12″×0.20″
0.24″×(0.08–0.16″)×0.24″
0.28″×(0.08–0.16″)×0.28″
0.31″×(0.08–0.20″)×0.31″
0.39″×(0.08–0.28″)×0.39″
0.47″×(0.16–0.31″)×0.47″
0.59″×(0.16–0.39″)×0.59″
0.63″×(0.16–0.47″)×0.63″
0.71″×(0.16–0.55″)×0.71″
0.79″×(0.16–0.63″)×0.79″
0.87″×(0.16–0.71″)×0.87″		 2×1×2 mm
3×2×3 mm
5×3×5 mm
6×(2–4)×6 mm
7×(2–4)×7 mm
8×(2–5)×8 mm
10×(2–7)×10 mm
12×(4–8)×12 mm
15×(4–10)×15 mm
16×(4–12)×16 mm
18×(4–14)×18 mm
20×(4–16)×20 mm
22×(4–18)×22 mm
Custom sizes Available — submit drawing or D×H×T dimensions

Applications

Application Typical Bore OD Recommended Grit Notes
Internal bore grinding — hardened steel 0.12″ – 0.87″
3 – 22 mm		 120 – 320 # Suitable for HRC 45–65; vitrified bond resists heat buildup
Die & mold internal grinding 0.20″ – 0.87″
5 – 22 mm		 150 – 320 # High dimensional accuracy for punch and die bore finishing
High-speed steel (HSS) tool bore grinding 0.12″ – 0.71″
3 – 18 mm		 120 – 220 # CBN outperforms conventional abrasives on HSS; longer wheel life
Bearing race internal grinding 0.20″ – 0.79″
5 – 20 mm		 180 – 320 # Fine grit for tight tolerance and low Ra surface finish requirements
Hydraulic valve bore finishing 0.20″ – 0.87″
5 – 22 mm		 220 – 360 # Achieves Ra <0.4 μm on valve spool and sleeve bores
Small punch & needle bore grinding 0.08″ – 0.31″
2 – 8 mm		 150 – 320 # Smallest sizes suited for micro-bore grinding applications

Ordering Information

Item Detail
MOQ 1 piece
Lead time 7 business days · Custom: quoted on request
Custom quote Within 24 hours of drawing or spec receipt
Payment 100% T/T in advance · PayPal · Credit card

Related products