Discover the power of the Innovative R Series Speed Reducer—a marvel of engineering excellence that combines compact size and lightweight design with robust transmission torque. Experience superior performance and stable operation with minimal noise and exceptional durability. Versatile installation options allow seamless integration with various motor types, catering to a broad spectrum of applications, including sewage treatment, chemical processing, pharmaceuticals, and more.
Our speed reducer offers an extensive range of motor combinations, installation configurations, and structural designs. The meticulously classified and refined transmission ratios are engineered to accommodate diverse operating conditions, ensuring unmatched performance and reliability.
Crafted with a reinforced, high-rigidity cast iron box, our speed reducer features gears made from premium-quality alloy steel. These gears undergo carburizing, quenching, and hardening processes, followed by fine grinding, resulting in stable transmission, minimal noise, and substantial load-bearing capacity. Benefit from low temperature rise and extended service life. Commonly utilized in metallurgy, it boasts features such as minimal offset output, a compact structure, and maximum utilization of box space. The integral casting box enhances rigidity, thereby improving shaft strength and extending bearing life.
Product Name |
R Series Foot Mounted Coaxial helical gear units with solid shaft |
Gear material |
20CrMnTi alloy steel |
Color |
Blue Silver Red Customerized |
Case Material |
Cast iron HT200 |
Gear Processing |
Grinding finish by HOFLER Grinding Machines |
Noise Test |
Below 65dB |
Brand of bearings |
C&U bearing, ZWZ,LYC, HRB, NSK ,etc |
Brand of oil seal |
NAK or other brand |
Temp. rise (MAX) |
40ºC |
Temp. rise (Oil)(MAX |
50ºC |
Vibration |
≤20µm |
Housing hardness |
HBS190-240 |
Surface hardness of gears |
HRC58°~62 ° |
Gear core hardness |
HRC33~40 |
Machining precision of gears |
5 Grade |
Lubricating oil |
GB L-CKC220-460, Shell Omala220-460 |
Heat treatment |
Carburizing, Quenching etc |
Efficiency |
95%~96% (depends on the transmission stage) |
Backlash |
≤20Arcmin |
Installation Instructions

Changzhou Changyulong Reducer Co., Ltd specializes in the production of cycloidal gear reducers, boasting a rich history of expertise. Our comprehensive enterprise and technical management systems ensure products are manufactured in strict adherence to JB298281 standards. Certified by the International Provincial Bureau of Standards, we provide premium cycloidal gear solutions that meet modern demands.
Our cycloidal pinwheel reducers, rooted in innovative planetary transmission and cycloidal pinwheel tooth meshing technologies, serve as key components across various sectors. From textile printing and dyeing to light industry food processing, metallurgy, mining, petrochemical, lifting, transportation, and construction machinery, our reducers drive devices and enhance speed building applications with efficiency and reliability.
Renowned for quality and reliability, our cycloidal reducers offer comprehensive specifications and competitive pricing. Guided by our 'sincerity and credibility' ethos, we prioritize delivering quality and customer satisfaction. Our products' significant technical and economic advantages have garnered widespread acclaim across multiple industries, ensuring dependable use and exceptional results.

Q: What're your main products?
A: We currently produce Brushed Dc Motors, Brushed Dc Gear Motors, Planetary Dc Gear Motors, Brushless Dc Motors, Stepper motors, Ac Motors and High Precision Planetary Gear Box etc. You can check the specifications for above motors on our website and you can email us to recommend needed motors per your specification too.
Q: How to select a suitable motor?
A:If you have motor pictures or drawings to show us, or you have detailed specs like voltage, speed, torque, motor size, working mode of the motor, needed lifetime and noise level etc, please do not hesitate to let us know, then we can recommend suitable motor per your request accordingly.
Q: Do you have a customized service for your standard motors?
A: Yes, we can customize per your request for the voltage, speed, torque and shaft size/shape. If you need additional wires/cables soldered on the terminal or need to add connectors, or capacitors or EMC we can make it too.
Q: Do you have an individual design service for motors?
A: Yes, we would like to design motors individually for our customers, but it may need some mold developing cost and design charge.
Q: What's your lead time?
A: Generally speaking, our regular standard product will need 15-30days, a bit longer for customized products. But we are very flexible on the lead time, it will depend on the specific orders.