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NC-250

The Roller Driver transmission uses the arc surface indexing principle, which iscurrently the most accurate motion control method. The work piece is composed of an input shaft (curved index roller)and a roller (output shaft). The roller groove surface on the input shaft meshes with the outer ring surface of the driven rollerelement on the roller in line contact, so that to drive the wheel (the worktable) to rotate. The driven roller element utilizes internal roller bearings to transmit torque during rotation.This working principle guarantees zero backlash,excellent workingaccuracy and working efficiency,and effectively avoids the loss of internal parts,and provides a lasting high-precision working state.

Model Unit RX-NC250
Worktable diameter mm ø250
Center height mm 160
Center hole diameter Front-end diameter mm ø65H7
Through hole mm ø65H7
T-slot width mm 12H7
Guide block width mm 18H7
Loading capacity (Radial direction) kg 155
Loading capacity (Axial direction) kg 290
Loading capacity (Tailstock) kg 290
Servo motor SYNTEC S08-AM8/AM11 Motor interface
130
FANUC βis8/βis12
MITSUBISHI HG-104S/154S 130
Reduction ratio 1:90
Maximum setting unit r.p.m 33
Minimum setting unit deg 0.001°
Indexing accuracy sec ±15
Bi-directional repeat accuracy sec 6
Allowable cutting torque kgf-m 80
Clamp type Oil brake
Input pressure kg-cm2 25
Tightening Torque kg-m 60
Product Weight kg 95

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