6904 ZZ Shielded Ball Bearing 20x37x9
6904 ZZ shielded ball bearings are constructed of high quality materials for durability. It has a protective cover that protects it from debris and other external elements, making it ideal for a variety of applications.
It is used in a range of applications from water jet machinery to 3D printing equipment, electric motors, CNC machinery, trucks, medical equipment, RC Hobby, robotic systems, dental equipment, camera mounts, rolling mills, ship rudder shafts, aggregate crushers, Motorcycles, household appliances, power tools and machines, gearboxes, etc.
● High-grade balls
● Sealed on both sides
● Advanced grease technology
● High-speed capability
● High quality steel
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| Spec | 6904 ZZ |
| Item | Miniature Ball Bearings |
| Type | Shielded |
| Bore Dia. | 20 mm |
| Outside Dia. | 37mm |
| Width | 9 mm |
| ABEC Tolerance | 3 |
| Dynamic Load Capacity (kN) | 6.38kN |
| Static Load Capacity (kN) | 3.65kN |
| Max. RPM | 18,000RPM |
| Temp. Range (℃) | -40~120℃ |
| Material | Steel |
| Shield Material | Nitrile rubber + mild steel (NBR + SPCC) |
| Lubrication | Grease |
6904 ZZ is a 20 mm single row radial ball bearing, metal shielded on both sides and pre-lubricated with grease. It is a 37 mm outside diameter shielded ball bearing made of chrome steel with a deep groove geometry ideal for high speeds and light radial and axial loads.
Common uses for it are: Electric Motors, Camera Mounts, Pulleys, Alternators, Generators, Fans, Medical Equipment, Wheels, 3D Printing, Conveyor Rollers, Printers, CNC Machinery, Remote Control Models, Robotics and many more.
Other types of ball bearings are also available: 6903 ZZ, 6809 2RS, 634 2RS. If you’re interested in our procucts, please feel free to contact us.
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