CNC ROTARY TABLE

AR-160

CNC Rotary Table

NON-BACKLASH ROLLER CAM TYPE

The roller cam consists of an input cam shaft and a roller turret.
The roller cam is designed with rolling contact, featuring high rigidity, high speed, and outstanding durability.
Engagement between the roller and cam are preloaded to fully eliminate backlash that enables the roller and cam to exhibit their ultra-high precision feature.
Besides, with rolling contact to transmit kinetic energy, energy consumption during drive can be dramatically reduced. This enables the roller cam to achieve over 90% of transmission efficiency.

Dimensional Drawing

Specifications

Model Unit AR-160
TABLE DIAMETER Ømm 160
CENTER HEIGHT mm 135
SPINDLE HOLE Ømm Ø60H7 /
Ø45
T SLOT WIDTH mm 12H7
GUIDE KEY WIDTH mm 18H7
SERVO MOTOR FANACU α4iF
MITSUBISHI HF(HG)104
SIEMENS 1FK7060
HEIDENHAIN QSY-116C
TOTAL SPEED REDUCTION RATIO   36
MAX. ROTATION SPEED
(3,000 rpm)
rpm 83.3
RESOURCE (PNEUMATIC) kgf/cm² 5
OUTPUT BRAKING TORQUE kg/m 14
INDEXING ACCURACY sec 20
REPEATABILITY sec 4
MIN. INCREMENT 0.001° 0.001°
ALLOWABLE WORK WEIGHT VERTICAL kg 70
HORIZONTAL kg 140
ALLOWABLE LOAD
(WHEN TABLE IS CLAMPED)
kgf 800
Fxl
kgf-m
13
Fxl
kgf-m
40
ALLOWABLE WORK INERTIA kg/cm² 0.48
WEIGHT kg 64


TYPE HYDEX ROLLER CAM WORM / WORM GEAR DIRECT – DRIVE TORQUE MOTOR
Engaging Parts Material and Hardness Cam Shaft: Carburized Steel, HRC 58°~60° Worm: Carburized Steel, HRC60 Direct Drive by Motor
Cam Follower: Bearing Steel, HRC 58°~60° Worm Gear: Phosphor Bronze, HB90
Contact Type Rolling Contact Sliding Contact -
Backlash Nearly Zero-backlash (Within 5 arc - sec) Backlash Required -
Table Surface Accuracy Repeatability Good Low Good
Engaging Parts Preload Required Not Available Without
Transmission Efficiency High Low High
Indexing Accuracy Within 20 arc-sec 15 ~ 20 arc-sec Within 30 arc-sec
Thermal Growth Low (Slightly higher than normal Temperature) High Low
High Speed Good Poor Good
Dynamic Cutting Rigidity High Low Low
Durability Good Poor Moderate
Backlash Adjustment No Need Required -

RADIAL AND AXIAL BEARING LAYOUT
AR-135 / AR-160 / AR-200

FIGURE OF ROLLER AND CAM ENGAGEMENT

交叉滾子軸承
AR-250 / AR-320 / AR-500