4125 Brushless Motor 490KV on a white background

4125 Brushless Motor 490KV

Name: 4125 无刷电机 490KV
SKU: 5030
Availability: InStock

Price range: ¥120.00 through ¥480.00

4125 490KV brushless motor, weighing 354g including wires, with an overall length of 73.5mm. It features a 6mm shaft and 4-M4 mounting holes. Discuss selection and customization based on frame space, power supply and propulsion requirements.

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Shipping is charged separately. Pay after the shipping charge is confirmed.

SKU: N/A Category: Brushless motors

MERIVUS / 4125

Product overview

490KV specification

Specified for 6S power. Match the propeller and control system to the requirements of the complete system.

6mm shaft diameter

Approx. 50mm outer diameter, 73.5mm overall length and 4-M4 mounting holes.

Mechanical and system integration

Discuss project configurations including shaft length, wire routing, mounting geometry and propulsion targets.

Specifications

Model	4125
KV rating	490KV
Specified power supply	6S
Weight per motor (including wires)	354.00g
Overall length	73.5mm
Outer diameter (approx.)	Ø50mm
Shaft diameter	6mm
Mounting holes	4-M4
Slots / poles	12N14P
Phase-to-phase resistance (including wires)	16.88mΩ
No-load current	2.72A（10V）
Color / Package	Black / Supplied in the selected configuration
Test current (100% throttle)	70.48A

Current test conditions: 6S power supply, 490KV, GF 15×8E propeller, 100% throttle and measured voltage of 23.46V. The 70.48A value is the current under these test conditions, not a continuous current rating. Selection must account for the actual power supply, propeller and cooling conditions.

Applications and selection

For drone propulsion selection, aircraft development and component supply for bulk projects.

When requesting a quote, please provide the aircraft model, power supply, intended propeller, available mounting space and target operating conditions so we can assess the motor, ESC and propeller together. Before assembly, check mounting holes, fasteners and electrical connections.

Supply and customization

Supplied in the selected configuration: a single unit or a pack of 4. A quantity of 1 means one of the selected configurations. Specifications, weight and propulsion test data refer to a single motor, not the packaged weight of a set. ESCs, propellers and other supporting components must be selected separately.

Project discussions can cover shaft length, mounting geometry, wire routing, KV and propulsion targets, color and appearance, and protective measures. The scope, cost and lead time for selection support, samples, integration tuning and volume supply are subject to the solution agreed by both parties.

Discuss Selection & Pricing

Specifications and packaging

Model	4125
KV rating	490KV
Color	Black
Configuration	Single, Set of 4

MERIVUS · Service & Support

Confirm your requirements. Plan your delivery with confidence.

Before ordering, confirm the product configuration, quotation, shipping charges and lead time with our sales team. The following information applies to our domestic sales and inquiry services.

Delivery and shipping charges

Shipping is charged separately and is not included in product prices.We arrange courier pickup. Shipping charges are calculated according to the delivery address, parcel weight and the carrier's billing rules. Our sales team will confirm the charge with your order.

For lightweight, bulky parcels, dimensional weight is charged according to the courier’s rules. Please discuss shipping methods and costs in advance for bulk orders or special delivery requirements.

Dispatch time

Standard in-stock products are usually dispatched within 48 hours after payment and order details are confirmed.Lead times for custom, out-of-stock and bulk orders are confirmed separately.

Dispatch time means the time the goods are handed to the courier. Delivery time depends on the destination and logistics arrangements. Our sales team will contact you if the dispatch schedule changes.

Quotations and invoicing

Product and shipping charges are confirmed separately. Before confirming an order, check the model, configuration, quantity, tax treatment of the quote and invoicing details. The quotation agreed by both parties will specify the cost breakdown.

Custom solutions are quoted separately based on technical requirements, quantity and scope of supply.

After-sales service and returns

We currently offer no additional commercial warranty. This does not affect our statutory responsibilities for product quality.If you receive an incorrect item, missing parts, shipping damage or a quality issue, please retain the relevant records and contact us for verification and assistance.

Individual consumers who purchase goods online for personal use are entitled to a seven-day return without giving a reason where the applicable legal conditions are met. Custom-made goods are excluded from this right, but quality issues remain subject to applicable law. Other statutory exceptions apply as provided by law.

For returns without a stated reason, products must be intact, with accessories and gifts included. Return shipping is borne by the consumer as required by law, unless otherwise agreed. We cover necessary shipping costs for returns, replacements or repairs required by law due to products failing to meet quality requirements.

For business procurement, acceptance, after-sales service, returns and exchanges are handled according to the contract agreed by both parties and applicable law.

Contact Sales & Support

Phone / WeChat:15356877933
Business email:sales@merivusco.com
Support hours: 08:00–24:00 (Beijing time)

For after-sales assistance, please provide your order details, product model and a description of the issue so we can investigate.

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4125 Brushless Motor 490KV

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