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Deep Groove Ball Bearing

 Deep Groove Ball Bearing
Deep groove ball bearings are the most common type of ball bearing. They are commonly used in electric motors and in household appliances, car motors, office machinery, automation control, and garden and household tools. They have deep raceway grooves and their race dimensions are close to the dimensions of the balls that run inside.
Deep groove ball bearings come in many sizes, materials and varieties according to consumer needs, including special industrial uses such as high-temperature applications. High-temperature bearings are made to withstand temperatures up to 350°C (660°F) and are suitable for machines used in the metals industry or for industrial ovens.
They fall under two designs: there are single-row deep groove ball bearings with a single row ; and there are double-row bearings, which have two rows of bearing balls. They can also be made in different sizes and for different loads according to their application, from miniature ball bearings for light loads and small assemblies to large deep groove ball bearings and heavy load deep groove bearings.
Deep groove ball bearings incorporate grooved raceways on both the inner ring and outer ring, which
enable them to sustain moderate axial loads in both directions in addition to radial loads. Balls are
separated by steel cages, permitting high-speed operation. Double row angular contact bearings are
designed to accommodate combined simultaneous acting axial and radial loads. Balls are normally
separated by high-speed Polyamide cages.
Most bearings are prelubricated with Mobil Polyrex EM grease or Chevron SRI-2, which provides
excellent lubrication up to 350°F. Sealed and shielded bearings are lubricated for life.
Bearing Steel
Standard bearings utilize high quality 52100 through hardened steel. Stainless steel units utilize high
quality AISI 440C stainless steel to combine corrosion resistance and provide hardness and strength.
Bearing Configurations
IDC Select radial ball bearings are manufactured as either sealed (2RS), shielded (ZZ) or open. Many
bearings can also be supplied with snap rings (NR). 
Sealed (2RS) bearings feature contact lip seals that provide excellent protection from liquids and
contamination. However, seal rubbing can result in friction (drag) and produce heat, which could be
a concern in high-speed applications.
Shielded (ZZ) bearings have non-contact steel shields that do not protect against liquids but add no
friction or heat build-up during operation.
Open bearings are supplied with a coating of light oil and are used in oil bath and oil mist
Snap ring (NR) bearings are supplied with snap ring grooves and snap rings installed on the OD.
(NOTE: Not all bearings are available as NR.)