684 2RS 4x9x4 Rubber Sealed Bearing

684 2RS sealed ball bearings, the bearings are made of chrome steel, the bearings are sealed with rubber seals to protect the bearings from dust or any possible contamination, this is a self-lubricating bearing (the bearing is already lubricated).

The miniature ball bearing 684 2RS is small enough to fit in confined spaces and on thin shafts. It can withstand very high speeds. Main dimensions according to DIN 625-1.

This metric size miniature ball bearing has a deep groove geometry. It is suitable for applications involving combined radial and axial loads and where high running accuracy at high rotational speeds is required. For example, 684 2RS are commonly used in motors, ATMs and card readers. The 684 2RS are also popular in the food and beverage industry.

More specifically, 684 2RS miniature bearings are widely used in industrial and scientific applications such as medical and industrial handpieces, flow meters, fuel controls, gyroscopes, synchronizers, servo systems, electric motors, cryocoolers, pulmonary assist devices, and more.

● Premium Quality Precision Ball Bearing

● Miniature ball bearing with smallest dimensions

● Suitable for high running accuracy, quiet running and very high speeds

● Electric Motor Quality Rated (EMQ)

● Suitable for high radial loads and light axial loads in both directions

Click here and download the data sheet of 6001 2RS deep groove ball bearings or contact us and get more detailed information.

For any inquiries, please contact with our Supporting Team at sales@yuanhecd.com.

Part Number 684 2RS

Deep groove ball bearing drawing
Spec 684 2RS
Item Miniature Ball Bearings
Type Shielded
Bore Dia. 4 mm
Outside Dia. 9 mm
Width4 4 mm
ABEC Tolerance 3
Dynamic Load Capacity (kN) 0.15kN
Static Load Capacity (kN) 0.224kN
Max. RPM 57,000RPM
Temp. Range (℃) -40~120℃
Material Steel
Shield Material (NBR+SPCC)
Nitrile Rubber + Mild Steel (NBR + SPCC)
Lubrication Grease

This is a premium quality 4x9x4 rubber sealed bearing. It features two shields to protect the bearings from contamination and dust, as well as a rubber seal that keeps the lubricant in and contaminants out. This bearing is ideal for applications where high speeds, precision, and durability are required.

Other types of ball bearings are also available: 696 ZZ, 695 ZZ, 685 2RS. If you’re interested in our procucts, please feel free to contact us.

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Contact us if you are thinking of purchasing high quality bearings, develop new products, or want to find a reliable bearing manufacturer.

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