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Nice Ball Bearing 1621NS Unshielded, 52100 Bearing Quality Steel, 0.5000" Bore x 1.3750" OD x 0.4375" Width

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Specifications for this item
Brand Name Nice
Part Number 1621NSTNBF18
UPC 637400291600
Material Type 52100 Bearing Quality Steel
Exterior Finish Chrome Steel
System of Measurement Inch
Bearing Number 1621NSTNBF18
Bore Diameter 0.5000  inches
Bore Diameter Tolerance + .0000 / - .0005  inches
Outside Diameter 1.3750  inches
Outside Diameter Tolerance + .0000 / - .0005  inches
Overall Width 0.4375  inches
Max Rotational Speed 5000  RPM
Static Load Capacity 850  pounds
Dynamic Load Capacity 1878  pounds
EAN 0637400291600
Number of Items 1
UNSPSC Code 31171504

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Product Features

  • Single-row radial ball bearing for applications that support medium radial loads and speeds up to 5000 RPM
  • 0.5000" 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
  • Open bearing for lubrication applied in place

Product Description

This Nice 1621NS single-row radial ball bearing is unsealed and has a nylon cage and precision ground surfaces. It is suitable for applications that require quiet operation and support medium radial loads at speeds up to 5000 rpm. This case-hardened ASTM International 52100 bearing quality steel bearing has a 0.5000" bore diameter, a 1.3750" outside diameter, and a 0.4375" width. Its inside (ID) and outside diameter (OD) surfaces 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. The bearing is open on both sides for lubrication applied in place. 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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