Double Row Spherical Bearing for sand blasting machines 21308
Product Description
Product Description
21300 Series spherical roller bearing has a high-capacity steel cage, a CN radial clearance, P5 precision, an outer ring with center lubrication groove and three oil holes, and a round bore suitable for applications that support high radial and oscillating axial loads, such as in light rail wheel sets. Its rollers, cage, and rings are made from low-oxide vacuum-melted high-carbon chrome steel for increased wear and fatigue resistance and higher limiting speeds, and it conforms to Deutsches Institut für Normung (DIN) P5 precision standard for performance within a narrow range of variation. The steel cage has high wear resistance,spaces the oversize rollers for even load distribution, and prevents contact to reduce friction, vibration, and noise. The bearing's round bore fits conventional cylindrical shafts. This bearing has an "Extra Heavy" rating and two rows of symmetrically arranged rollers oriented on a concave raceway, which allow self-realignment and compensate for static and dynamic alignment errors. This bearing has a maximum operating temperature of 392 degrees F. This roller bearing's CN (normal) radial clearance is for applications where thermal expansion does not reduce clearance. This roller bearing is intended for interchangeability and meets DIN standards for parts numbering, bearing dimensions, load ratings, tolerances, and clearances. It meets International Standards Organization (ISO) standards for hardening of bearing rollers and rings. This spherical barrel roller bearing is suitable for use in material handling equipment, electric generators, and machine tools.
* 21300 Series two row spherical roller bearing has an "Extra Heavy" rating with oversize rollers to support high radial and oscillating axial loads
* High-capacity steel cage has high wear resistance and spaces the rollers for even load distribution and prevents contact to reduce friction, vibration, and noise
* P5 precision and high-carbon chrome steel parts for increased wear and fatigue resistance
* CN (normal) radial clearance for applications where thermal expansion is not a factor
* Round bore fits conventional cylindrical shafts
* High-capacity steel cage has high wear resistance and spaces the rollers for even load distribution and prevents contact to reduce friction, vibration, and noise
* P5 precision and high-carbon chrome steel parts for increased wear and fatigue resistance
* CN (normal) radial clearance for applications where thermal expansion is not a factor
* Round bore fits conventional cylindrical shafts
| Product Name | 21308 |
| d | 40 mm |
| D | 90 mm |
| B | 23 mm |
| Basic dynamic load rating | 107 kN |
| Basic static load rating | 108 kN |
| Limiting speed | 9500 r/min |
| Mass bearing | 0.75 kg |