External Cylindrical & Centerless Grinding


Cylindrical wheels are most often used when the part is held between centers and in chucks. There are three methods of cylindrical grinding: plunge, traverse and angular.
1. Plunge grinding-wheel is thrust or plunged into the part
2. Traverse grinding-wheel moves across the part
3. Angular grinding-wheel infeed into the part at an angle

If used in grinding machines with high power & high rigidity as well as at higher surface speed such as 45m/s, the wheels can achieve more consistent size precision, less dressing, higher efficiency and higher cutting ability.


Applicable Industries

• Engine manufacturing in automotive & motorcycle industries: camshaft, crankshaft, transmission shafts, etc.
• Shafts for motors
• Gear & cam
• Roller for transmission & conveyor
• Bearing
• Shipbuilding
• Aerospace
• Ball screw
• Toolroom



Product Features

3CG, 4CG, 5CG–highest efficiency & lowest unit grinding cost
Features
Benefits
‧Ceramic aluminum oxide (micro-crystalline)
‧Highest hardness & toughness among Al2O3
‧Self-sharpening
‧Used with durable bond
‧Higher removal rate, lower grinding temperature
‧2X~5X longer wheel life than other abrasives
‧Longer dressing intervals
‧Good form holding
‧Good free cutting ability
‧Applicable for materials with high hardness or high tensile strength, Ex: alloy, tool and high speed steels
SA-Medium to Heavy Removal Rate
Features
Benefits
‧Mono-crystalline
‧Hard & tough
‧Good free cutting ability, versatile
‧Long dressing intervals and consistent size precision
‧Good form holding ability
‧Suitable for materials with medium to high hardness
DA-Medium to Heavy Removal Rate
Features
Benefits
‧Angular shape
‧Harder & tougher than PA
‧Free cutting ability similar to SA
‧Applicable to hardened steels such as high carbon steel, alloy steel and high speed steel
PA-Low to Medium Removal Rate
Features
Benefits
‧Friable than DA
‧Tougher than WA
‧Suitable for steels with hardness ≤ HRC55
‧Mainly for medium removal rate

External Cylindrical (OD) Grinding Wheels for Surface Speed 45m/s

These wheels are suitable for grinding machines with high rigidity operating at 45m/s. Ex: TOYODA, SHIGIYA, NTC, KONDO, STUDER, LANDIS, etc. Higher efficiency, less dressing, better finish, longer wheel life and consistent size precision can be attained simultaneously.



Abrasive Types for 45m/s—3CG, 4CG, 5CG, SA, PA, DA
Applicable Materials
Grit Sizes
Sizes
Remark

SKD, SCM, SNCM, carbon steel, cast iron, HSS, etc. With or without heat treatment.

46
60
80
100
120

150

D:255 ~ 810

T:12 ~ 160

For high rigidity grinding machines operating at 45m/s.


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