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T-137N,T-177N CNC Internal Grinding Machines, Centerless Type

Easily reconfigurable large-size CNC internal grinding machines for machining large bearings with external diameters up to 320 mm. A workpiece support system with two shoes and a magnet improves productivity when machining bearings to high precision.

Main Specifications

T-137N T-177N
Grinding Method NC Oscillation or plunge Plunge
Grindable Work O.D φmm 140 to 320
Grindable Work Width mm 40 to 200
Grindable Work I.D. φmm 84 to 300

T-137N Application

Spherical bearing inner ring internal grinding

φ240×W130mm

Roundness 2.96 μm
Surface roughness 0.34 μmRa
Cycle time 495 sec

T-177N Application

Spherical bearing outer ring groove grinding

Sφ417×W130mm

Roundness 8.32 μm
Surface roughness 0.34 μmRa
Cycle time 920 sec