Nabtesco Precision Equipment Company
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Introduction
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Simple Product SelectionFrom the product type and input type, you can select a product based on various motors of major manufacturers, motor Watt size.
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Detailed Product SelectionThis program selects suitable models and calculates product lifetime according to your conditions of use.
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Detailed Product Selection for Positoner UnitsThe program seletcs suitable RVP models and calculates lifetime according to your condition of use.
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Simple Product Selection KHK's rack/pinion and Nabtesco's GH series in robot sliderCollaboration between KHK's rack/pinion and Nabtesco's Precision Reduction Gear RV™ with standard specifications without designing.
GearheadRA-A
Specialized gearhead for machine tools(Case 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 arc.min.
- Lost motion less than 1 arc.min. Internal main bearing
- Major motor coupling Parts included
- Sealed grease
Application
Spec Information
| Model |
|---|
| RA-20EA |
|---|
| RA-20EA |
| RA-20EA |
| RA-20EA |
| RA-20EA |
| RA-40EA |
| RA-40EA |
| RA-40EA |
| RA-40EA |
| RA-80EA |
| RA-80EA |
| RA-80EA |
| RA-80EA |
| RA-160EA |
| RA-160EA |
| RA-160EA |
| RA-160EA |
| RA-160EA |
| 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) |
Allowable Moment 2 (N・m) |
Allowance Thrust 2 (N) |
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 ※1 (m/min) |
Loading capacity/wheel (kgf) |
Loading load/4 wheels AGV (reference values) ※1 (kgf) |
|---|
| 0.375 | 80 | 80 | 167 | 412 | 15 | 6,000 | less than 1 | less than 1 | 49 | 372 | 0.00000607 | 10 | 882 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.375 | 104 | 104 | 167 | 412 | 15 | 6,000 | less than 1 | less than 1 | 49 | 372 | 0.00000432 | 10 | 882 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.375 | 120 | 120 | 167 | 412 | 15 | 6,000 | less than 1 | less than 1 | 49 | 372 | 0.00000356 | 10 | 882 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.375 | 140 | 140 | 167 | 412 | 15 | 6,000 | less than 1 | less than 1 | 49 | 372 | 0.00000288 | 10 | 882 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.375 | 160 | 160 | 167 | 412 | 15 | 6,000 | less than 1 | less than 1 | 49 | 372 | 0.00000239 | 10 | 882 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.924 | 80 | 80 | 412 | 1,029 | 15 | 6,000 | less than 1 | less than 1 | 108 | 931 | 0.000022 | 18.5 | 1,666 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.924 | 104 | 104 | 412 | 1,029 | 15 | 6,000 | less than 1 | less than 1 | 108 | 931 | 0.0000163 | 18.5 | 1,666 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.924 | 120 | 120 | 412 | 1,029 | 15 | 6,000 | less than 1 | less than 1 | 108 | 931 | 0.0000137 | 18.5 | 1,666 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.924 | 152 | 152 | 412 | 1,029 | 15 | 6,000 | less than 1 | less than 1 | 108 | 931 | 0.0000101 | 18.5 | 1,666 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1.758 | 80 | 80 | 784 | 1,960 | 15 | 6,000 | less than 1 | less than 1 | 196 | 1,176 | 0.00006 | 28 | 2,156 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1.758 | 100 | 100 | 784 | 1,960 | 15 | 6,000 | less than 1 | less than 1 | 196 | 1,176 | 0.0000482 | 28 | 2,156 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1.758 | 120 | 120 | 784 | 1,960 | 15 | 6,000 | less than 1 | less than 1 | 196 | 1,176 | 0.0000396 | 28 | 2,156 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1.758 | 152 | 152 | 784 | 1,960 | 15 | 6,000 | less than 1 | less than 1 | 196 | 1,176 | 0.0000298 | 28 | 2,156 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3.517 | 80 | 80 | 1,568 | 3,920 | 15 | 6,000 | less than 1 | less than 1 | 392 | 2,940 | 0.000177 | 58 | 3,920 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3.517 | 100 | 100 | 1,568 | 3,920 | 15 | 6,000 | less than 1 | less than 1 | 392 | 2,940 | 0.00014 | 58 | 3,920 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3.517 | 128 | 128 | 1,568 | 3,920 | 15 | 6,000 | less than 1 | less than 1 | 392 | 2,940 | 0.000106 | 58 | 3,920 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3.517 | 144 | 144 | 1,568 | 3,920 | 15 | 6,000 | less than 1 | less than 1 | 392 | 2,940 | 0.000087 | 58 | 3,920 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3.517 | 170 | 170 | 1,568 | 3,920 | 15 | 6,000 | less than 1 | less than 1 | 392 | 2,940 | 0.000074 | 58 | 3,920 |
Download
RA-A
Series
- Product CAD Drawing 2D
- Product CAD Drawing 3D
- Selection Table of Model Code
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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Introduction
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