High quality needle roller bearing NA4904 with inner bush
Model: NA4904
Size: 20*37*17 mm
Feature: have librication groove and hole
Material: chrome steel
Weight: 0.1 kg
Limiting speed:17000 r/min 
Rate dynamic load: 4700 lbf 
Rate static load: 5700 lbf 
Pacakge: Original single box + carton box
Brand: SKF, KOYO, INA, IKO, RAD 
Delivery: 1-3 days
Payment term; T/T, Western Union, Paypal
Packaging: standard original single box
Delivery time: 3 days after receive payment
Application: Needle roller bearing can be used for drying machine, glue 
Machine, cross flow cooling tower, shoes machine, pneumatic chuck, Roland 
Printing presses, medical, beverage production equipment, the hybrid heat 
Exchanger, carving machine, gravity separation equipment, drying curing 
Equipment, desulfurization machine, molding machine auxiliary, crossed, high-
Pressure pump, mesh belt furnace, thread cutting, etc.