Model KN-302 with high precision and high productivity is designed based on reputed model KN-312. It fits to grind small bearing inner race, OD of Tri-port roller , Rod-end ball, a complete Hydro-static bearing with high precision and endless life. His also provided with double armed loader and 1 magnet-2 shoe work support.
Rotary and single point dresser are selectable, feed motion is achieved by wheel slide.
Grind Max OD. size of work |
φ8mm ~ φ35mm |
Bore size range |
― |
Work width |
5mm~20mm |
Wheel table drive |
AC servo + Ball screw |
Wheel table Max. stroke |
120mm |
Wheel table Max. speed |
10m/min |
Dress slide drive |
AC servo + Ball screw |
Dress slide Max. stroke |
70mm |
Cross table drive |
― |
Croaa table Max. stroke |
― |
Cross table Max. speed |
― |
Dressing type |
Rotary Dia. |
Sizing methord |
Sizematic / Gaugematic |
Centre hight from the bottom |
1050mm |
[Example of work piece]

KN-302B [SHOE TYPE MAGNET CHUCK]
Work piece is securely supported by the carbide shoe nad ground to size while the work piece is rotated on a powerful magnetic chuck. This system eliminates work piece clamping and achieves consistent grinding of excellent roundness and squareness, thus the portion of a work piece which is ground to the ground reference outer diameter can have as high concentricity as possible. Of course, it is possible to grind a work piece with reference to an outer diameter of a unground work piece with mill scale.
