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Nice Ball Bearing 3002DS Double Shielded, 52100 Bearing Quality Steel, 0.2500" Bore x 0.6875" OD x 0.2500" Width

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Specifications for this item
Overall Width
0.2500  inches
Bore Diameter
0.2500  inches
Bearing Number
Part Number
Brand Name
Max Rotational Speed
2500  RPM
Number of Items
Bore Diameter Tolerance
+ .005 / - .000  inches
Material Type
52100 Bearing Quality Steel
Outside Diameter
0.6875  inches
Exterior Finish
Chrome Steel
Static Load Capacity
255  pounds
Outside Diameter Tolerance
+ .0000 / - .0005  inches
Dynamic Load Capacity
170  pounds
System of Measurement

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Key Features

  • Single-row radial ball bearing for applications that support light radial loads and speeds up to 3000 RPM
  • 0.2500" straight bore for fitting to conventional cylindrical shafts
  • Nylon cage evenly spaces balls for reduced friction, vibration, and noise
  • Case-hardened 52100 bearing quality steel for optimum wear resistance
  • Metal shields on both sides of the bearing keep the lubricant in and contaminants out

Package Details

Shipping Weight: 0.1 pounds
Package Size: 1.7 x 1.4 x 0.2 inches

Product Description

This Nice 3002DS single-row radial ball bearing is double shielded and has a nylon cage and precision ground surfaces. It is suitable for applications that require quiet operation and support light radial loads at speeds up to 3000 rpm. This case-hardened ASTM International 52100 bearing quality steel bearing has a 0.2500" bore diameter, a 0.6875" outside diameter, and a 0.2500" width. Its outside diameter (OD) and raceways are ground to a precision of +0.0000 and -0.0005", allowing higher speeds and creating lower friction than comparable-sized roller bearings. Metal shields on both sides of the bearing keep out contaminants such as dirt and grime and hold in the lubricant applied at manufacture. This bearing has a straight bore for fitting to conventional cylindrical shafts and a nylon cage to prevent the balls from coming into contact with each other during use, reducing friction, vibration, and noise. This radial ball bearing is suitable for use in commercial and industrial applications including household appliances, power tools, original equipment or replacement parts in motors, office automation, and conveyor rollers.

Rolling bearings use rolling elements to maintain the separation between moving parts to reduce rotational friction and support radial and axial loads. These elements can be one of the following types: ball, cylindrical, spherical, barrel, needle, spindle, or tapered. All rolling bearings are open, shielded, or sealed. Sealed bearings are lubricated with oil or grease in the bearing factory, while open and shielded bearings are meant to be lubricated in place, with periodic reapplication of lubrication, based on use. The shield protects the working parts of the bearing from environmental debris that may be introduced and could reduce the ball bearing speed and lifespan. Rolling bearings are used in a range of applications from agricultural machinery to conveying equipment, robotics, dental equipment, elevators, rolling mills, ship rudder shafts, and aggregate crushers, among others.

RBC Bearings manufactures bearings, pins, rollers, and shafts, and other products for industrial and aerospace applications under the RBC, Nice, Heim, Unibal, and Spherco brands. The company, founded in 1919 and headquartered in Oxford, CT, meets International Organization for Standardization (ISO) standards 9001:2008 and ISO/TS 16949:2009.

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