SKF 6301-2Z Metal Shielded Single Row Deep Groove Ball Bearing 12x37x12mm

The SKF 6301-2Z double-shielded deep groove ball bearing provides a robust bearing arrangement for 12mm shafts in equipment where rotational efficiency and dependable load support are important. Its 37mm outside diameter and 12mm width distinguish it from the smaller 6201 series, which uses the same bore but occupies less housing space. The single row deep groove raceways accommodate radial loads together with axial forces acting in either direction, within the bearing's rated limits. SKF specifies a basic dynamic load rating of 10.1kN and a basic static load rating of 4.15kN. These ratings provide a basis for assessing fatigue life, operating loads and suitability for motor or transmission applications.

The 2Z designation identifies a metal shield on each side of the bearing. Unlike the contacting rubber seals used in 2RSH or 2RS1 designs, these shields operate without direct contact with the inner ring, reducing sealing friction and associated heat generation. They help retain the factory-applied grease and limit the entry of larger airborne contaminants, but provide less protection against water and fine particles than contact seals. SKF lists a 45,000rpm reference speed and 22,000rpm limiting speed, which are distinct values and should not be treated as interchangeable operating limits. Normal (CN) radial internal clearance and a sheet metal cage complete the specification. For replacement, confirm that the original equipment requires a double-shielded bearing rather than a rubber-sealed or C3-clearance variant.

Typical Applications:

Small industrial electric motors

Ventilation fans and blower assemblies

Compact pumps and circulation equipment

Light-duty conveyor drive mechanisms

Mechanical transmissions and rotating shaft supports