LDDC7530  centrifugal cooling fan, specifically designed for Smart Home Appliance Product Cooling Fan.DC7530 Blower Design Dimensions 75*75*30mm,Voltage 5V/12V/24V, Bearing:Hydraulic/Sleeve/Ball Bearings,Service life: 30000 to 200,000 hours.

LDDC7530 accepts the following customizations ：

Fan Frame and Blade Material

Fan Label

Fan wiring harness, cable length, terminals

Speed/Airflow

LDDC7530 Design Parameters

Motor Protection: RP/SS/AS/CL

Signal Output:FG/RD/LD

Speed Contorl Method：PWM/TP/VC/RC/CS

LDDC7530 Design Parameters /Specifications

LDDC7530 Application Product Range

DC7530 is mainly used for Smart Toilet/Shoe Dryer/Dishwasher/Humidifier/Electric Heater Cooling Fan,We have served over 30 different brands of equipment in total.

LD accepts customization and replacement of mainstream brand cooling fans according to parameter requirements, such as:

SUNON：PMB2475PNB1-AY ，PF75301B1-1B00C-A99，GB1205PKV3-8AY

Delta：BFB0712H，BFB0724H，EFB0712HH

CUI：CBM-7530B-130，CBM-7530BF-160-540，CBM-7530BF-260-540-20

SanyoDenki:109C0712H101,109C0724H101,109C0712H201

LD brand OEM cooling fans have 7 years of service experience, with stable product performance. Leveraging China's powerful supply chain system, the product costs are lower and delivery times are faster. It's an excellent choice for small and medium-sized enterprises to quickly launch designed products while controlling costs.d enterprises to quickly launch designed products while controlling costs.

How to Choose Different Bearings for Cooling Fans:

Sleeve Bearings: These are sleeve bearings that use sliding friction and rely on lubricating oil as a lubricant and friction reducer. Low operating noise and low cost during initial use. The lifespan of ordinary oil-impregnated bearings is typically between 5,000 and 6,000 hours.

Hydraulic Bearing: The hydraulic bearing is an improvement on the oil-impregnated bearing, featuring a larger oil storage space and a unique loop-back oil supply circuit. This type of bearing inherits the advantages of oil-impregnated bearings and has a longer lifespan than oil-impregnated bearings, with an average lifespan of up to 40,000 hours.

Ball bearings: They change the way bearings operate by using rolling friction, which more effectively reduces friction between the bearing surfaces and significantly extends the lifespan of fan bearings. Ball bearings are divided into single ball bearings and double ball bearings:

Single Ball Bearing : Combines sliding friction and rolling friction, with a service life of up to 40,000 hours, but the operating noise will increase.

Double Ball Bearings: These are relatively high-quality bearings with an extremely long lifespan, approximately 50,000-100,000 hours. They are suitable for fans with higher rotational speeds, but the manufacturing cost is high and they tend to produce more noise.