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Introduction
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 |
| w number (kw) |
Ratio | Actual Ratio | Rated Torque （N・m） |
Allowable Scceleration/Deceleration Torque （N・m） |
Rated Output Speed （r.p.m.） |
Rated life （hr） |
Backlash (arc.min.) |
Lost Motion (arc.min.) |
Torsional Regidity (Nm/arc.min.) |
Moment Rejidity (Nm/arc.min.) |
Moment of Inertia (kg・m^2) |
Mass (kg) |
Allowable Moment 1 (N・m) |
|---|
| 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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- Gearhead RA-A