Coaxial Helical Inline Gearbox
What is a Coaxial Helical Inline Gearbox
The R Series is a coaxial helical Inline gearbox with hardened gear teeth, belonging to one of the four major product series. Characterized by its coaxial input and output, compact size, high efficiency, low noise, and flexible mounting options, it serves as a mainstay model for general industrial applications.


Models
Horizontal Foot-Mounted: R17, R27, R37, R47, R57, R67, R77, R87, R97, R107, R137, R147, R167
Vertical Flange-Mounted: RF17–RF167
Single-Stage High-Ratio: RX/RXF37–RXF157
Dedicated for Agitators: RM Series (Reinforced bearings to withstand high axial and radial loads)



1. Coaxial & Compact: Coaxial input and output design minimizes footprint, making it ideal for installation in confined spaces.
2. High Efficiency & Energy Saving: Efficiency of **≥94%**-significantly higher than traditional worm gear drives (70–85%)-resulting in substantial energy savings during long-term operation.
3. Low Noise & Smooth Operation: Helical gear meshing ensures minimal vibration and low noise levels, making it suitable for continuous-duty applications.
4. High Load Capacity: Features hardened and ground gear teeth, offering high torque density and robust resistance to overload conditions.
5. Flexible Mounting: Supports multi-directional installation via various options: foot mount, flange mount, direct motor coupling, servo flange interface, or shaft input.
6. Reliable & Durable: Equipped with fully ground gears and high-quality bearings, boasting a designed service life of ≥100,000 hours.
7. Simple Maintenance: Excellent sealing prevents oil leakage; routine maintenance requires nothing more than periodic oil changes.


|
Model |
Helix Gearbox |
|
Ratio |
1.3~289.74 |
|
Output torque |
Max 18000Nm |
|
Input power |
0.12~200KW |
|
Install |
Base / Flange Mount |
|
Housing material |
High-strength cast iron |
|
Lubrication |
Oil Bath Lubrication |


































Q1: What is the approximate transmission efficiency of the R Series?
A1: It is approximately 96% for two-stage units, 94% for three-stage units, and 85% for combined units-efficiencies that are significantly higher than those of worm gear reducers.
Q2: What is the maximum torque that a coaxial helical gear reducer can withstand?
A2: The output torque range for standard models is 85 to 18,000 N·m, while larger frame sizes offer even greater load-bearing capacity.
Q3: Can the R Series be mounted in multiple orientations?
A3: It supports various mounting methods-such as foot and flange mounting-and the mounting orientation can be adjusted as needed to suit different equipment.
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