Reduction ratio and gearbox stage
Match reduction ratio to the required gearbox output and duty.
A compact planetary geared motor family with a 24 mm gearbox and a range of reduction-ratio configurations. Compare output speed, load torque and stage-dependent gearbox length.
OEM supply · Configuration-specific winding and mechanical interface
| Model | Rated supply V | Reduction ratio | Gear stages | Gearbox length mm | No-load output speed rpm | On-load output speed rpm | On-load output torque N.m | On-load current mA |
|---|---|---|---|---|---|---|---|---|
| TJX24RA3.7i-12V-1756.8R | 12 | 3.7 | 1 | 22 | 1756.8 | 1405.4 | 0.01 | 120 |
| TJX24RA5.2i-12V-1250R | 12 | 5.2 | 1 | 22 | 1250 | 1000 | 0.01 | 120 |
| TJX24RA13.7i-12V-474.5R | 12 | 13.7 | 2 | 28 | 474.5 | 379.6 | 0.02 | 120 |
| TJX24RA19.2i-12V-338.5R | 12 | 19.2 | 2 | 28 | 338.5 | 270.8 | 0.03 | 120 |
| TJX24RA26.9i-12V-241.6R | 12 | 26.9 | 2 | 28 | 241.6 | 193.3 | 0.04 | 120 |
| TJX24RA51i-12V-127.5R | 12 | 51 | 3 | 33 | 127.5 | 102 | 0.06 | 120 |
| TJX24RA71i-12V-91.5R | 12 | 71 | 3 | 33 | 91.5 | 73.2 | 0.09 | 120 |
| TJX24RA100i-12V-65R | 12 | 100 | 3 | 33 | 65 | 52 | 0.13 | 120 |
| TJX24RA139i-12V-46.8R | 12 | 139 | 3 | 33 | 46.8 | 37.4 | 0.17 | 120 |
| TJX24RA189i-12V-34.4R | 12 | 189 | 4 | 39 | 34.4 | 27.5 | 0.21 | 120 |
| TJX24RA264i-12V-24.6R | 12 | 264 | 4 | 39 | 24.6 | 19.7 | 0.3 | 120 |
| TJX24RA369i-12V-17.6R | 12 | 369 | 4 | 39 | 17.6 | 14.1 | 0.42 | 120 |
| TJX24RA512i-12V-12.7R | 12 | 512 | 4 | 39 | 12.7 | 10.2 | 0.58 | 120 |
| TJX24RA721i-12V-9R | 12 | 721 | 4 | 39 | 9 | 7.2 | 0.81 | 120 |
| TJX24RA699i-12V-9.3R | 12 | 699 | 5 | 45 | 9.3 | 7.4 | 0.71 | 120 |
| TJX24RA977i-12V-6.7R | 12 | 977 | 5 | 45 | 6.7 | 5.3 | 0.99 | 120 |
| TJX24RA1367i-12V-4.8R | 12 | 1367 | 5 | 45 | 4.8 | 3.8 | 1.39 | 120 |
| TJX24RA1911i-12V-3.4R | 12 | 1911 | 5 | 45 | 3.4 | 2.7 | 1.94 | 120 |
| TJX24RA2672i-12V-2.4R | 12 | 2672 | 5 | 45 | 2.4 | 1.9 | 2 | 120 |
| TJX24RA3736i-12V-1.7R | 12 | 3736 | 5 | 45 | 1.7 | 1.4 | 2 | 120 |
Published configuration codes use the TJX24RA family. Confirm the full configuration code against the selected drawing when ordering this 24JX370 platform.
Compare reduction ratio, output speed, load torque and gearbox length as one configuration.
Performance and dimensions are subject to the selected winding, reduction ratio where applicable, drawing and agreed test conditions. Please confirm the current configuration with Hongyang before ordering.

The selected drawing controls shaft, mounting and tolerance details. Any lettered dimensions without a value are specified for the chosen build.

24 mm planetary gearbox with 20 ratio configurations and in-line output. Use an existing configuration as the starting point, then review the interfaces that connect it to your equipment.
Match reduction ratio to the required gearbox output and duty.
Review continuous and peak torque together with output speed.
Define shaft engagement, external loading and mounting position.
Include the supply, operating cycle and any required feedback or holding behavior.
This published 24JX370 configuration is not available with an encoder. Discuss feedback requirements before selecting an alternative series.
Select output torque and speed together; allow for starting and peak loads.
Check shaft loading, support, orientation and mounting envelope.
Define run time, reversing cycles and the required control behavior.
The gearbox length changes with the reduction stage. Use the length from the selected row and drawing.
Send this series name, the full variant if selected, the installation drawing and required working point.
Check fit and performance in your equipment. Record the supply, load, duty and test method.
Agree the drawing revision, model code, acceptance requirements and order quantity before release.
Send your preferred model or the working point, installation drawing and expected quantity.
A drawing, reference motor or application brief is a useful starting point.
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