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Rigid Construction RV Gear Reducer RV-27C-36.57, Same As Nabtesco Cycloidal
Our RV reduction gear reliability, have a long lifetime and
precision, less than 1 arc - min backlash, very compact with high
torsional rigidity, in - line version for greater design and space
saving flexibility, integrated Angular bearings for large thrust &
overhung moment capacity, high ratio availability up to 1/212,
without increasing gearbox size, torque capacity up to 5X rated
torque (E - stop), 100% continuous contact of the cycloidal pin &
gear teeth design provides high shock load capacity and very low
backlash since forces are distributed throughout the reducer, 2 -
stage reduction structure reduces vibration due to the lower speed
rotation of the two cycloidal gears, special input shaft design
lowers inertia.
One of the most critical mechanical structures of industrial robots
is the RV reduction gear, 38% for the RV reducer, at present, 75%
of the precision reducers in the global robot industry are
monopolized by Nabtesco and HarmonicDrive in Japan (commonly known
as RV reducers and harmonic reducers in the industry), including
the reducers of international mainstream robot manufacturers such
as ABB, FANUC, and KUKA provided by the company. Nabtesco's RV
reducers account for about 60%, and Harmonica's harmonic reducers
account for about 15%.
In the past 20 years, we has been focusing on the development and
production of robotic precision motors and precision reducers. In
2010, we developed RV gear reducers for industrial robot
transmission core components and series AC servo motors, which have
been put into mass production.
RV reduction gear noise and lifetime
1. The gear reducer is operated at rated speed with a noise of <
75 dB.
The noise level is related to installation accuracy, lubrication,
temperature, load and other factors.
2. The gear reducer is operated at rated conditions with a life of
> 6000 hours.
It is not advisable to operate for longer than the rated speed or
rated torque, otherwise the life will be reduced.
To ensure the accuracy and longevity of the gear unit, please
replace the grease after every 2000 hours of operation.
RV Gear Reducer RV-27C -36.57 technical Parameters
Operating parameter
Output Rotational speed r/min | 5 | 15 | 25 | 35 | ||||
Output torque | Input capacity | Output torque | Input capacity | Output torque | Input capacity | Output torque | Input capacity | |
Model | Nm | kW | Nm | kW | Nm | kW | Nm | kW |
27C | 360 | 0.26 | 270 | 0.54 | 224 | 0.80 | 204 | 1.00 |
Note: the rated torque is the output torque when the output speed
is at 15r/min.
Performance Parameter
Model | Speed ratio | Allowable output speed | Maximum backlash | Allowable acceleration/decleration torque | Momentary max allowable torque | Allowable moment | Momentary max allowable movement | Weight | Efficiency | Noise | |
27C | Reduction gear unit | r/min | arc.min | Nm | Nm | Nm | Nm | kg | % | dB | |
36.57 | 60 | 1 | 675 | 1350 | 945 | 1890 | 8.5 | >80 | <75 |
RV Gear Reducer RV-27C -36.57 installation parameter
inner hexagon bolt Nominal dimension(mm) | fastening torque(Nm) | fastening force | bolt requirement |
M8 × 1.25 | 37.2 ± 1.86 | 23960 | GB/T 70.1 - 2000 intensity:12.9 thread requirement:GB/T 1167-1996 |
M6 × 1.0 | 15.6 ± 0.78 | 13180 |
RV Gear Reducer RV-27C -36.57 installation drawings