VR/PR Series variants
Nidec Drive Technology Corporation expanded from its early roots in mechanical powertrains into higher precision gearing as the motion control market and servo motor technology started to rapidly evolve. Our initial planetary gearbox series were developed to specifically serve the needs of our major robotics customers in Japan and other areas of southeast Asia. During this product expansion, Nidec DTC was able to leverage our production engineering expertise and high volume manufacturing capabilities to become the dominant precision planetary gearbox supplier within the robotics segment and throughout the Asia-Pacific.
Nidec DTC followed this early development with the introduction of a high-precision planetary series variety that was more suited to compete throughout the global marketplace. The base design platform for each of these series incorporated a modularity of subassemblies and standardization of components that facilitated high volume, efficient production.
With our inline planetary portfolio, our customers have access to a wide variety of frames sizes, ratios, and many configurations are unmatched across the industry. For performance, quality and overall value, look no further than Nidec DTC.
VR/PR Series, Summary Level Table
| Product Series | Frame Size | Backlash Rating | Reduction Ratios | |
|---|---|---|---|---|
| PRE Inline Helical planetary Economy class |
 |
Smallest: 062 Largest: 160 Variety: 4 |
Different levels ≤ 8 arc-min ≤ 10 arc-min |
Minimum: 3 Maximum: 100 Variety: 16 |
| PRF Inline Helical planetary Economy class |
 |
Smallest: 062 Largest: 160 Variety: 4 |
Different levels ≤ 8 arc-min ≤ 10 arc-min |
Minimum: 3 Maximum: 100 Variety: 16 |
| VRL Inline Helical planetary General purpose |
 |
Smallest: 050 Largest: 235 Variety: 7 |
≤ 5 arc-min | Minimum 3 Maximum 100 Variety 22 |
| VRB Inline Helical planetary General purpose, simple mount |
 |
Smallest: 042 Largest: 220 Variety: 7 |
≤ 3 arc-min | Minimum: 3 Maximum: 100 Variety: 22 |
| VRS Inline Helical planetary Highest radial, axial load capacity |
 |
Smallest: 042 Largest: 240 Variety: 8 |
≤ 3 arc-min | Minimum: 3 Maximum: 100 Variety: 22 |
| VRS High Speed Inline Helical planetary Highest radial, axial load capacity |
|
Smallest: 075 Largest: 140 Variety: 3 |
≤ 3 arc-min | Minimum: 3 Maximum: 10 Variety: 5 |
| VRT Inline Helical planetary Compact, ISO Flange Mounting |
 |
Smallest: 064 Largest: 285 Variety: 7 |
≤ 3 arc-min | Minimum: 4 Maximum: 100 Variety: 19 |
| VRSF Inline Helical planetary Economy class |
 |
Smallest: B (60mm) Largest: E (170mm) Variety: 4 |
Different levels ≤ 3 arc-min ≤ 5 arc-min ≤ 15 arc-min |
Minimum: 3 Maximum: 81 Variety: 9 |
| Food/Washdown Duty Optional features for food or washdown environments |
 |
VRL: 070, 090, 120 VRB: 060, 090, 115 Others available upon request |
≤ 3 arc-min | Minimum: 3 Maximum: 100 Variety: 12 |