CBN Sharpening Wheel High Hardness Broach Grinding 1A1 Resin Bond 127mm Precision Profile Retention

CBN Sharpening Wheel – High Hardness & Wear Resistance

The CBN (Cubic Boron Nitride) Sharpening Wheel is engineered for high-precision broach grinding applications where hardness and wear resistance are critical. CBN abrasive grains possess a Knoop hardness of approximately 4700 kg/mm², second only to diamond, ensuring minimal grain blunting and exceptional shape retention over extended grinding cycles.

Key Advantages

• Superior Hardness: CBN abrasives maintain sharp cutting edges significantly longer than conventional Al₂O₃ or SiC wheels, reducing dressing frequency and improving grinding efficiency.
• Excellent Wear Resistance: The wheel maintains its dimensional accuracy even after repeated dressing cycles, perfect for grinding complex broach tooth profiles where contour consistency is essential.
• Precision Profile Retention: Ideal for broach sharpening tasks requiring exact replication of involute, trapezoidal, or spline tooth geometries across multiple regrinding operations.

Performance Specifications

This 1A1 resin bond CBN wheel features a 127mm diameter with 120/140 mesh grit, optimized for finishing and semi-finishing operations on high-speed steel (HSS) broaches. The resin bond formulation provides excellent self-sharpening characteristics while maintaining controlled material removal rates. Compatible with standard tool and cutter grinders equipped with 31.75mm arbor.

Recommended Applications

• Flat broach resharpening
• Round broach grinding
• Spline broach profile grinding
• Involute spline tool maintenance
• HSS cutting tool regrinding

ISO 9001:2015 certified manufacturing. Custom dimensions and grit specifications available upon request. Contact us for technical data sheets and application-specific recommendations.