Description
- TMotor UAV Brushless Motor U5 KV400
- Offers six holes beveling upward sparkles motor
- Comes with a special design to ensure the swift airflow
- High-quality varnished wire
- High-standard silicon steel sheet precision winding
- Larger bearing lower noise
- Motor cools 2.5 times faster than others
The TMotor UAV Brushless Motor U5 KV400 comes with a special design to ensure swift airflow. Motor cools 2.5 times faster than others. Six holes beveling upward sparkles motor with waterproof and sand-resistant features.
Offers high-quality varnished wire. An imported Oxygen-free copper coil that can tolerate a temperature of 180 °C is employed to enhance short circuit resistance.
High-Standard Silicon Steel Sheet Precision Winding: The precision winding ensures the tightness of coil and slots It helps reduce the copper loss while improving the utilization. Advanced 0.2 mm silicon steel sheet reduces heat and eddy thus improving the efficiency.
Larger Bearing Lower Noise: Adoption of imported EZO bearing prolongs the service life to over 1600 hours under trouble-free operation. EZO bearing enables the motor to run more smoothly and longer with lower noise.
Abnormal Shaft: A special screw is used for stator and rotor installation, avoiding looseness of the circlip.
- 1x TMotor UAV Brushless Motor U5 KV400
- Internal Resistance: 116 mΩ
- AWG: 16#
- No. of Cells (Lipo): 3 - 8 S
- Max Continuous Power 180S: 850 W
- Idle Current at 10v: 0.3 A
- Max Continuous Current 180S: 30 A
- Weight Including Cables: 195 g
- Weight Excluding Cables: 156 g
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Refund Policy
If you are not satisfied with a product purchased from the Site, you may request a return within 30 days from the delivery date, unless the product is listed under the Return Exceptions below or is subject to specific return conditions noted on the product page.
Please review the Return Conditions, Return Exceptions and the process on How to Request a Return Authorization (RA) before initiating a return request.
Returns under this policy concern non-defective products. In the case of a confirmed manufacturing defect, remedies are handled under the Warranty terms, at RoboItchi's discretion. See the Warranty section.
Return Conditions
To qualify for a refund under the 30-day return policy, all of the following conditions must be met:
- A valid Return Authorization (RA) number must be obtained prior to returning the product. Returns without an RA number will be refused.
- The RA number is valid for 30 days. The returned item must be received within that period.
- The RA number must be included with the return.
- Products must be returned in unused, unmodified condition (e.g., no scratches, alterations, missing parts, or signs of installation/use) and in their original packaging, suitable for resale.
- Shipping fees are non-refundable. Return shipping costs are the responsibility of the customer, except in cases of a product confirmed defective through RoboItchi's troubleshooting process or of a verified shipping error by RoboItchi.
- Refunds are processed within 7 days after receipt and inspection of the returned item.
- A ¥10,000 cleaning fee may apply to domestic robots returned in used or unclean condition.
- A 20% restocking fee may apply to large-quantity returns of items ordered specifically for the customer from the manufacturer or not part of RoboItchi's standard inventory.
Return Exceptions
The following products are not eligible for return or refund under this policy:
- Used, damaged, or modified products — Items that show signs of use, wear, or alteration, making them unsuitable for resale.
- Consumables — Use and wear-and-tear components, altered or depleted through use (e.g., batteries, belts, brushes, gears, filament, tires, disposable bags, lubricants, greases, waxes, etc.). Not eligible for return once opened or used.
- Perishables — Goods liable to deteriorate or expire rapidly. Not eligible for return.
- Sealed goods (health or hygiene) — Items sealed for health-protection or hygiene reasons (e.g., masks, gloves, odor-absorbing products). Not eligible for return once unsealed.
- Build-it-yourself products and items requiring customer assembly — Including robots & kits, robot parts, and other products requiring assembly or soldering. Not eligible for return once assembled, soldered, or installed.
- Digital Goods, Software, and Apps — Final sale only, due to licensing restrictions.
- Clearance Items — Products identified as clearance or final sale, including end-of-life or discontinued items.
- Custom-made, personalized, or special-order items — Products manufactured, configured, adapted, or built to the customer's own specifications and requirements.
- On-Demand Items — Standard catalogue products not stocked by RoboItchi and ordered specifically to fulfill a customer request.
- Professional & Specialized Equipment — See the Professional & Specialized Equipment Warranty page and Professional & Institutional Buyers (B2B) section in the Terms & Conditions.
How to Request a Return Authorization (RA)
To request a return, submit a support ticket from your account under My Support Tickets to obtain a Return Authorization (RA) number. Returns without an RA number will be refused.


