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| Availability: | |
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205 * 40 * 127 * 12 230 * 40 * 127 * 12 280 * 40 * 150 * 12 330 * 40 * 200 * 12 330 * 60 * 200 * 12
Vitrified bond · H / J grade · Grit 80#–320# · OD 205–330mm
Max 35 M/S · Hard & brittle materials · Micron-level precision

// CORE ADVANTAGES
Standard aluminum oxide wheels cannot effectively grind hard and brittle materials without causing subsurface damage, thermal cracking, or unacceptable surface finish deviation. GC's superior hardness and fracture toughness change that equation.
Green Silicon Carbide (Mohs ~9.5) is harder than aluminum oxide and more friable — breaking down to expose fresh, sharp cutting edges throughout the wheel's life. Essential for tungsten carbide, precision ceramics, and optical glass.
hard brittle material grindingPrecisely graded grain distribution ensures consistent material removal per pass and repeatable surface finish — critical for aerospace, automotive, and optical component manufacturing where tolerances are measured in microns.
precision grinding tool · superior surface finishHigh cutting force combined with GC's self-sharpening character minimises the grinding zone temperature. Less heat means less thermal damage, fewer micro-cracks, and longer workpiece service life.
low heat generation · extended wheel lifeThe glass-ceramic bond matrix is rigid, dimensionally stable under thermal load, resistant to grinding fluids, and maintains wheel geometry accurately — safe at up to 35 M/S for high-productivity precision operations.
ceramic bond grinding wheel · high-speed stability// TECHNICAL PARAMETERS
| Parameter | Specification | Notes & Context |
|---|---|---|
| Abrasive Material | Green Silicon Carbide (GC) | For hard & brittle: carbide, ceramics, optical glass, seals, bearings |
| Wheel Shape | Flat with Grooves — Correcting Ring | Internal / external cylindrical and face grinding operations |
| Bond Type | Vitrified (V) | Ceramic bond — rigid, fluid-resistant, form-stable |
| Hardness Grade | H Grade J Grade | H (softer bond) for harder workpieces; J for medium-hard applications |
| Grit Range | 80# — 320# | 80# rough grinding → 320# high-gloss precision finish |
| Max Operating Speed | 35 M/S | High-speed grinding wheel classification |
| OD (Outer Diameter) | 205mm 230mm 280mm 330mm | Large OD options for high-output production grinding |
| Bore Size | 127mm 150mm 200mm | Confirm spindle diameter before ordering |
| Thickness | 40mm 60mm | 60mm for enhanced lateral stability on demanding operations |
// COMMON SIZES · QUICK REFERENCE
| OD × Thickness × Bore (mm) | Approx. Weight | Search Keywords |
|---|---|---|
| 205 × 40 × 127 | ≈ 2,000 g | 205x40x127 GC Wheel Green SiC 205mm |
| 280 × 40 × 150 | ≈ 5,000 g | 280x40x150 Correcting Ring Vitrified 280mm |
| 330 × 60 × 200 | ≈ 8,000 g | 330x60x200 GC Wheel 60mm Thick Grinding Wheel |
| Custom OD / bore / thickness available — contact us with your machine specification | ||
// APPLICATIONS
Carbide cutting tool inserts
Carbide end mills & drills
Die and mould components
Wear parts and bushings
Technical / engineering ceramics
Alumina & zirconia components
Silicon nitride bearing balls
Ceramic seal faces
Precision optical glass blanks
Lens and prism blanks
Camera & instrument optics
Flat polishing and lapping
Mechanical seal ring faces
Precision bearing races
Pump and valve seat grinding
High-tolerance rotary parts
// GRIT SELECTION GUIDE
Grit selection determines the trade-off between material removal rate and surface finish quality. For most precision operations, a two-stage approach — coarse roughing then fine finishing — delivers the optimal result.
// INSTALLATION & SAFETY
Correct installation is mandatory — not optional. An incorrectly mounted vitrified grinding wheel operating at 35 M/S poses severe injury risk to operators and machine damage risk if it fails.
Hold the wheel freely through the bore. Tap the face gently with a wooden or plastic mallet. Interpret the sound:
NEVER skip the ring test. Always verify max RPM on the wheel label against your spindle speed before mounting. Never exceed the marked maximum operating speed under any condition.
Confirm OD, bore, thickness, and max speed rating match your grinding machine requirements exactly. Check marked RPM against spindle speed.
Confirm bore clearance is correct — not too tight (stress) or too loose (runout). Clean all mating surfaces of debris, swarf, and burrs.
Mount flanges symmetrically with full, even contact against both wheel side faces. Misaligned flanges create uneven clamping stress and risk fracture.
Place flexible blotter paper between each flange face and the wheel. Blotters distribute clamping force evenly and protect the wheel face at the contact zone.
Tighten with a standard wrench — firm enough to prevent slippage, never over-tightened. Over-torquing induces radial stress cracks in the vitrified bond. Run at full speed for 60 seconds before workpiece contact.
// FAQ
// CONTACT & ORDERS
Provide your workpiece material, machine spindle speed and bore size, required surface finish (Ra), and production volume. We will recommend the optimal specification and provide a competitive quote.