GearheadRA-C

Specialized gearhead for machine tools(Shaft rotating type)

The RA series is a gearhead type design for use mainly by machine tool manufacturers. This model enables precision indexing with case rotation. The RA series is widely used in ATC magazines, ATC arms, APCs, and turrets. Much like the RD series, this product can be used in a wide variety of applications in addition to those mentioned above.

Product Features

  • Compactness
  • Case capable revolution
  • Backlash less than 1 min.
  • Lost motion less than 1 min. Internal main bearing
  • Major motor coupling Parts included
  • Sealed grease

Application

Spec Information

Model
RA-20EC
RA-20EC
RA-20EC
RA-20EC
RA-20EC
RA-40EC
RA-40EC
RA-40EC
RA-40EC
RA-80EC
RA-80EC
RA-80EC
RA-80EC
RA-160EC
RA-160EC
RA-160EC
RA-160EC
RA-160EC
Discrimination1

Series

Unit Type

Series Symbol

Model

Motor Series

w number

(w)

w number

(kw)

Type

Ratio

Actual Ratio

Rated Torque

(N・m)

Allowable Scceleration/Deceleration Torque

(N・m)

Momentary Maximum Allowable Torque

(N・m)

Dimension α1

(mm)

Dimension α1

(mm)

Dimension Din

(mm)

Input Shaft Rated Moment

(N・m)

Input Shaft Allowable Moment

(N・m)

Dimensionβ

(mm)

Rated Output Speed

(r.p.m.)

Rated life

(hr)

Allowable Output Speed

(r.p.m.)

Allowable Input Speed

(r.p.m.)

Backlash

(arc.min.)

Lost Motion

(arc.min.)

Torsional Regidity

(Nm/arc.min.)

Moment Rejidity

(Nm/arc.min.)

Start-up Effciency

(%)

Moment of Inertia

(kg・m^2)

Mass

(kg)

Allowable Moment 1

(N・m)

Allowance Thrust 1

(N・m)

Allowable Moment 2

(N・m)

Allowance Thrust 2

(N・m)

Output Rotational Speed 1

(min-1)

Output Torque 1

(N・m)

Output Rotational Speed 2

(min-1)

Output Torque 2

(N・m)

Brake Holding Torque

(N・m)

Reduced Value Of The Inertia Moment For The Input Shaft

(kgm2)

Capacity

Part Number

Quantity

Packaging Type

Capacity

Part Number

Quantity

Packaging Type

Maximum allowable load (reference values)

(kg)

Maximum center of gravity height

(mm)

Maximum tilt angle

(deg)

Reduction ratio (Rotary axis)

Reduction ratio (Tilt axis)

Allowable startup/stop torque (Rotary axis)

(Nm)

Allowable startup/stop torque (Tilt axis)

(Nm)

Rotary axis allowable output speed (Operation Example)

(r.p.m.)

Tilt axis allowable output speed (Operation Example)

(r.p.m.)

Backlash・Lost motion (Rotary axis)

(arc.min.)

Backlash・Lost motion (Tilt axis)

(arc.min.)

Moment of inertia I (I=GD2/4) motor input conversion (Rotary axis)

(kg-m2)

Moment of inertia I (I=GD2/4) motor input conversion (Tilt axis)

(kg-m2)

Motor capacity (reference values) ※1

(w)

Wheel diameter

(mm)

Maximum speed

(m/min)

Loading capacity/wheel

(kgf)

Loading load/4 wheels AGV (reference values) ※1

(kgf)

375 0.375 81 81 167 412 15 6000 less than 1 less than 1 49 372 0.00000607 9.5 882

375 0.375 105 105 167 412 15 6000 less than 1 less than 1 49 372 0.00000432 9.5 882

375 0.375 121 121 167 412 15 6000 less than 1 less than 1 49 372 0.00000356 9.5 882

375 0.375 141 141 167 412 15 6000 less than 1 less than 1 49 372 0.00000288 9.5 882

375 0.375 161 161 167 412 15 6000 less than 1 less than 1 49 372 0.00000239 9.5 882

924 0.924 81 81 412 1029 15 6000 less than 1 less than 1 108 931 0.000022 20 1666

924 0.924 105 105 412 1029 15 6000 less than 1 less than 1 108 931 0.0000163 20 1666

924 0.924 121 121 412 1029 15 6000 less than 1 less than 1 108 931 0.0000137 20 1666

924 0.924 153 153 412 1029 15 6000 less than 1 less than 1 108 931 0.0000101 20 1666

1758 1.758 81 81 784 1960 15 6000 less than 1 less than 1 196 1176 0.00006 27 2156

1758 1.758 101 101 784 1960 15 6000 less than 1 less than 1 196 1176 0.0000482 27 2156

1758 1.758 121 121 784 1960 15 6000 less than 1 less than 1 196 1176 0.0000396 27 2156

1758 1.758 153 153 784 1960 15 6000 less than 1 less than 1 196 1176 0.0000298 27 2156

3517 3.517 81 81 1568 3920 15 6000 less than 1 less than 1 392 2940 0.000177 59 3920

3517 3.517 101 101 1568 3920 15 6000 less than 1 less than 1 392 2940 0.00014 59 3920

3517 3.517 129 129 1568 3920 15 6000 less than 1 less than 1 392 2940 0.000106 59 3920

3517 3.517 145 145 1568 3920 15 6000 less than 1 less than 1 392 2940 0.000087 59 3920

3517 3.517 171 171 1568 3920 15 6000 less than 1 less than 1 392 2940 0.000074 59 3920

Download

RA-C
Series

Product Catalog

Instruction Manual

Product CAD Drawing 3D
Selection Table of Model Code

Inquiry

Gearhead

Gearhead is a sealed and prelubricated precision gearbox, complete with accomodations for motor mounting ( major motor manufacturers). Three input types are available.

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