dc brushless fan motor 40*40*20Features: 1. Packaging Detail: PE Bag & white/color box, blister package2. Normal Operating Temperature: 25°C-45°C3. Life Expectancy: Dual Ball Bearing: 55000 hoursSleeve Bearing: 20000-30000 hours4. Standard: Fully CE, ROHS ApprovedSpecification Trade terms:1. Payment by T/T , Western Union or Paypal .100% payment for sample orders .30% deposit and 70% balance before shipment .2. Leadtime: Two –Three weeks subject to order quantity .Delivery Ways: DHL ,UPS Door to Door service ,By Air ,By Sea ,etc.3. Sample lead time:3-5 days .Mass production : Delivery Time :2-3 weeks