Description
Shinano Kenshi STH-54D403 Stepper Motor Gear Assembly 127K94840 8V 1.2A 1.8°
This is a Shinano Kenshi STH-54D403 stepper motor with an integrated gear assembly, part number 127K94840. The unit consists of a cylindrical hybrid stepper motor mounted to a machined aluminum bracket housing a multi-stage spur gear train, with a flanged bearing output shaft and a 6-pin wiring harness for motor phase connections. It is thermally protected as noted on the motor label.
Specifications & What's Included
- Manufacturer: Shinano Kenshi Co., Ltd. – Japan
- Motor Model: STH-54D403
- Part Number: 127K94840
- Motor Type: Hybrid Stepper Motor (Step Motor)
- Step Angle: 1.8 degrees/step
- Rated Voltage: 8V
- Rated Current: 1.2A
- Thermal Protection: Yes – thermally protected (per label)
- Gear Type: Multi-stage spur gear train, integrated aluminum bracket assembly
- Output: Flanged bearing output shaft
- Connector: 6-pin Molex-style wiring harness (multi-color leads)
- Country of Manufacture: Japan
Applications
Hybrid stepper motors like the Shinano Kenshi STH-54D403 are widely used in precision motion control applications where repeatable, incremental positioning is required without the need for an encoder or closed-loop feedback. The 1.8°/step angle (200 steps/revolution) is the most common stepper resolution, making this motor suitable for use in office equipment, document scanners, printers, plotters, copiers, and light industrial automation. The integrated gear assembly reduces output speed and multiplies torque, making the combination well suited for applications that need more torque at lower speeds — such as paper-feed mechanisms, carriage drives, and similar OEM machine assemblies. Shinano Kenshi is a well-established Japanese manufacturer of precision motors with a long history supplying OEM motion components to the imaging and automation industries.
This Shinano Kenshi STH-54D403 stepper motor with gear assembly (P/N 127K94840) has been inspected and appears to be in good used condition. The motor body, gear train, aluminum mounting bracket, and output shaft bearing all look clean and intact with no visible damage. The 6-pin wiring harness is present and the connector is in good shape. There is minor surface wear on the aluminum bracket consistent with normal prior use. Please view our photo set and contact us if you have any questions. Please note: We have multiple units in stock — yours may not be the one shown in the photos, however, it will be similar in condition and function.
Warranty Information
Additional Information
Brand: |
Shinano Kenshi |
Model: |
STH-54D403 |
MPN: |
127K94840 |
Secondary Model: |
127K94840 |
Type: |
Stepper Motor with Gear Assembly |
SKU: |
40081 |
Step Angle: |
1.8 Degrees/Step |
Voltage Rating: |
8V |
Current Rating: |
1.2A |
Thermal Protection: |
Yes – Thermally Protected |
Connector Type: |
6-Pin Molex-style Connector |
Gear Type: |
Spur Gear Train |
Output Shaft: |
Flanged bearing output shaft |
Condition: |
Used – Inspected and in Good Condition |
Country/Region of Manufacture: |
Japan |
Seller Notes: |
Includes stepper motor with full gear assembly and 6-pin wiring harness. |
Condition Notes: |
Shinano Kenshi STH-54D403 stepper motor w/ gear assembly (127K94840) inspected and in good used condition. Motor, gear train, bracket, output shaft, and 6-pin harness all present and intact. Minor surface wear on bracket. |
