B / JXJ / SXJ Cycloidal Gear Reducer

Cycloidal pinwheel reducer for large-ratio coaxial drives, frequent start-stop operation, reversing duty, and shock-load machinery.

Key Range

Technical Datasheets

Item	Data
Product name	B / JXJ / SXJ Cycloidal Gear Reducer
Product type	Cycloidal pinwheel reducer
Transmission layout	Coaxial input-output transmission
Model range	SXJ00–SXJ06 / JXJ00–JXJ06
Output speed	16.09–155.56 r/min
Input power	0.37–15 kW
Rated output torque	98–5,608 N·m
Ratio range	Single stage 1/9–1/87; double stage 1/99–1/7569
Efficiency reference	Single stage approx. 0.85; double stage approx. 0.72
Input forms	Direct motor, IEC motor, shaft input, flange input
Mounting forms	Foot-mounted, flange-mounted, vertical F-flange
Output connection	Coupling, gear, chain sprocket, belt, or machine-side connection
Lubrication	Grease-lubricated and oil-lubricated models available
Best fit	Large-ratio coaxial reduction, shock-load duty, frequent start-stop, reversing operation, and replacement of BLY / BWD / JXJ reducers

Current Series	Previous Type	Rated Output Torque	Output Shaft Diameter
SXJ00	JXJ00	98 N·m	Ø30
SXJ01	JXJ01	221 N·m	Ø35
SXJ02	JXJ02	448 N·m	Ø45
SXJ03	JXJ03	986 N·m	Ø55
SXJ04	JXJ04	1,504 N·m	Ø70
SXJ05	JXJ05	3,051 N·m	Ø90
SXJ06	JXJ06	5,608 N·m	Ø100

What is a cycloidal gear reducer used for?

A cycloidal gear reducer is used for industrial low-speed transmission where large reduction ratio, compact coaxial structure, shock-load resistance, frequent start-stop operation, and reversing duty are important.

What is the difference between cycloidal reducer and helical reducer?

Cycloidal reducers use cycloidal pinwheel transmission and multi-tooth meshing. Helical reducers use involute helical gear stages. Cycloidal reducers are often reviewed for high-ratio, shock-load, and dynamic-duty applications, while helical reducers are often selected for efficient modular geared motor packages.

What is the difference between cycloidal reducer and NMRV worm reducer?

Cycloidal reducers are coaxial reducers. NMRV / RV worm reducers are compact right-angle reducers. Use cycloidal reducers when the input and output need to stay aligned; use NMRV / RV when the machine requires 90-degree transmission.

What ratio range is available?

The available product data lists single-stage ratio 1/9–1/87 and double-stage ratio 1/99–1/7569. Final ratio availability should be confirmed by model size and datasheet.

Can this reducer handle frequent start-stop and reversing?

Yes, the cycloidal reducer product direction is suitable for frequent start-stop and reversing operation when the model is selected correctly for torque, service factor, duty cycle, and shock load.

What mounting forms are available?

Available mounting directions include foot-mounted, flange-mounted, and vertical F-flange configurations. Final mounting dimensions and shaft direction should be confirmed by drawing.

What information is needed before quotation?

Send motor power, input speed, required output speed, ratio, output torque, mounting form, input form, output shaft direction, duty cycle, starts per hour, working environment, and any existing nameplate or drawing.

Can Starshine provide drawings and CAD files?

2D drawings and 3D CAD files can be requested after model, ratio, stage configuration, mounting form, output shaft direction, and input form are confirmed.