How do I know if the fan is failing?

Listen for clicking/grinding, check if RPM is much lower than spec, or see if blades wobble/stiffen when powered off.

What causes loud fan noise?

Loose screws causing vibration, dust buildup increasing resistance, or bearing wear (sleeve bearings wear out faster).

Can I connect the fan to a power supply?

Yes, connecting to a PSU Molex runs it at 12V full speed, but it is simpler and noisier than motherboard control.

40X40X7mm Custom Made Corrosion Resistant Low Power Consumption DC Bracket Fan for Car Electronics Cooling

Name: 40X40X7mm Custom Made Corrosion Resistant Low Power Consumption DC Bracket Fan for Car Electronics Cooling
Brand: Fengxia Motor (Shanghai) Co., Ltd.
SKU: 2156977892

Shanghai, ChinaFengxia Motor (Shanghai) Co., Ltd.

US$2.30

500-4,999 Pieces

US$1.00

5,000+ Pieces

Sample price:US$4.00/piece.Request sample

Product profile

Customization

Available

Material

Plastic-Iron-Copper-Magnet

Blade Material

PBT 94ulv

Model NO.

FX4007

Type

DC Frameless Bracket Fan

Electric Current Type

Mounting

Free Standing

Certification

RoHS, ISO, CE

Insulation Resistance

10mωor Over with at DC250V Megger

Ielectric Withstand Voltage

AC500V1s

Ambient Temperature

-10℃~+70℃(Operating) -40℃~+70℃(Storage)

Expected Life

+40° ,30000 Hours

Transport Package

Paper Box

Specification

Customized

Trademark

FUNSHARE

Origin

China

Production Capacity

100000 Pieces/Year

Key features

Customizable Design: Full customization available from samples or designs to meet specific needs.

High Durability: Double-ball bearings last 5-10 years, suitable for 24/7 operation.

Wide Voltage Tolerance: Operates effectively within a 5V-13V range for versatile compatibility.

RoHS & CE Certified: Products meet FCC, CE, and ROHS standards for quality assurance.

Ultra-Quiet Operation: Features compact design and low noise options like hydraulic bearings.

Fast Delivery: One-month lead time for both peak and off-season orders.

100% Inspection: Strict visual and functional inspection for all finished products.

OEM/ODM Service: Professional manufacturer offering OEM and ODM services.

Company profile

Importers and ExportersHigh Repeat Buyers Choice

Fengxia Motor (Shanghai) Co., Ltd.

Shanghai, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 5 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤3.99h

AI-Powered supplier vetting

SummaryThe supplier provides extensive customization options and has a strong research and development capability, including ODM services and new product development. However, they lack overseas warehouse and showroom capabilities, and do not have overseas agents or participate in trade shows. Their financial data is up-to-date and they hold an ISO9001:2015 certification. Despite having quality assurance processes, the manufacturing capacity seems limited with only two production lines and no ongoing volume reconciliation or outsourcing SOPs.

CertificationsHolds an ISO9001:2015 certificate, indicating compliance with quality management standards.

After-Sales capabilityHas clear procedures and records for handling customer complaints and implementing corrective actions.

Financial creditFinancial data is current, with information available up to the last three years, demonstrating financial stability.

R&D capabilityStrong R&D capabilities with evidence of new product development, though lacking in audit documentation.

Production capacityLimited production capability with only two production lines, and lacks ongoing volume reconciliation and outsourcing SOPs.

Customization capabilityOffers full customization services from samples and designs, with a comprehensive design service capability.

Client casesProvides OEM services for well-known brands, suggesting a history of working with reputable companies.

Product Q&A

Q:How can I reduce fan noise?

Use rubber grommets instead of screws, lower voltage with a resistor, or adjust BIOS curves to keep RPM low.

Q:What is the difference between 3-pin and 4-pin fans?

3-pin uses DC voltage control for fixed speeds, while 4-pin uses PWM for auto speed control, offering quieter and more precise operation.

Q:How long does the fan last?

Sleeve bearings last 2-3 years, hydraulic bearings 4-5 years, and double-ball bearings 5-10 years under 24/7 use.

Q:Which direction should the fan face?

Follow the arrows on the frame: intake for front/side (cool air in) and exhaust for rear/top (hot air out).

Q:Why does the fan spin at 5V if labeled 12V?

The motor has a wide tolerance (5V-13V), though it might not start below ~7V.

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