RV-N


Solid shaft component sets

Compact construction, reduced weight: ideal for robotics

We developed the component sets of the RV-N series as very compact, lightweight and high-performance solid shaft gears. These gears are used in applications with limited space that require high torque performance. Perfect for robotics!

Our top products of RV-N series

RV-42N

Positioning accuracy:
0.5 - 1 arc.min.
Allowable acceleration torque:
1,029 Nm
Outer diameter:
159 mm
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RV-125N

Positioning accuracy:
0.5 - 1 arc.min.
Allowable acceleration torque:
3,062 Nm
Outer diameter:
221 mm
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RV-500N

Positioning accuracy:
0.5 - 1 arc.min.
Allowable acceleration torque:
12,250 Nm
Outer diameter:
325 mm
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High shock load (up to 5 times the rated torque)

Extremely precise and low-wear, hysteresis loss < 1 arcmin, long service life

Finely graduated sizes, rated torques of 245 Nm to 28,000 Nm

Unbelievably powerful with exceptional load capacity

RV-N cycloidal gears are very compact due to the main bearing with an integrated inner race. The reinforcement of the crankshaft bearing achieves very high power density. In addition, all gear components are FEM-optimised and are manufactured using state-of-the-art production processes.

An efficiency ratio of up to 85 %, shock resistance of 5 times the rated torque and extreme precision make the eccentric gears of the RV-N series an outstanding choice for diverse robotic applications. Robots benefit from excellent load conditions due to the reduced weight and lower mass inertia. The RV-N series is also used in medical technology, in machine tools and in positioning applications.

RV-2800N: The biggest precision gear in the world

The RV-2800N achieves a rated torque of 28,000 Nm, which makes it the biggest precision gear in the world. A robust and compact design, together with high precision, makes the gear suitable for the most demanding applications. Even entire vehicles can be moved effortlessly with the component sets. The extra large gear is designed for use in applications that require precise positioning of large loads. Such applications include robotics, automotive construction, the glass industry, shipbuilding, mining and cranes. A powerful and efficient alternative to hydraulic applications.

Applications for RV-N solid shaft component sets

Robotics

Delta, SCARA and 6-axis robots for painting systems, assembly, PCBs and machine tools

Machine tool building

Magazine drives and handling of very large loads

Medical technology

Imaging processes such as X-ray, MRI or ultrasonic examinations

Packaging technology

Pick & place and palletising – also in the food industry


Technical data

Specifications

Model RV- 25N 42N 60N 80N 100N 125N 160N 380N 500N 700N 900N 1500E 2800N
Standard ratio 41
81
107.66
126
137
164.07
41
81
105
126
141
164.07 
41
81
102.17
121
145.61
161 
41
81
101
129
141
171 
41
81
102.17
121
141
161
41
81
102.17
121
145.61
161
41
81
102.81
125.21
156
201   
75
93
117
139
162
185
81
105
123
144
159
192.75
105
118
142.44
159
183
203.52

137.5
248
316.71

65
156
236.29
564
274
211
232.72
Rated torque (Nm) 245 412 600 784 1,000 1,225 1,600 3,724 4,900 7,000 9,000 14,700 28,000
Allowable acc. / dec. torque (Nm) 612 1,029 1,500 1,960 2,500 3,062 4,000 9,310 12,250 17,500 22,500 36,750 70,000
Emergency stop torque (Nm) 1,225 2,058 3,000 3,920 5,000 6,125 8,000 18,620 24,500 35,000 45,000 73,500 140,000
Hysteresis loss (arcmin) <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0
Torsional rigidity (Nm / arcmin) 61 113 200 212 312 334 490 948 1,620 2,600 3,685 6,320 15,600
Main bearing
capacity
Allowable moment (Nm) 784 1,660 2,000 2,150 2,700 3,430 4,000 7,050 11,000 15,000 12,740 44,100 62,000
Axial load (N) 2,610 5,220 5,880 6,530 9,000 13,000 14,700 25,000 32,000 44,000 39,200 51,000 70,400

 

Dimensions

Model RV- 25N 42N 60N 80N 100N 125N 160N 380N 500N 700N 900N 1500E 2800N
Weight (kg) 3.8 6.3 8.9 9.3 13 13.9 22.1 44  57.2 102 157 280 544
A (mm) 62 65.5 69.5 74 80 80 104 131 137.5 170 195.5 220 270
B (Ø mm) 133 159 183 189 208 221 238 295 325 395 440 570 720
C h7 (Ø mm) 94 118 140 140 160 160 179 222 253 315 335 390 560
D (Ø mm) 113 136 160 160 179 186 202 252 284 350 364 483 633

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CAD data

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