21308 E/C3
Spherical roller bearings are designed to support substantial radial and axial loads simultaneously, with a self-aligning capability that compensates for shaft misalignment and deflection with minimal friction or heat generation. Their robust construction ensures excellent performance even in equipment subject to vibration, while features for convenient relubrication and compatibility with modular components such as housings, sleeves, and nuts make them versatile for a wide range of applications. These bearings offer high load-carrying capacity, low friction, long service life, and increased wear resistance.
C3 clearance suits regular industrial temperature rise
Compact size with strong load support
Stable under vibration
Suitable for pumps, motors, fans, and compact systems
Long operational life
- Dimensions
Bore diameter 40 mm Outside diameter 90 mm Width 23 mm PerformanceBasic dynamic load rating 107 kN Basic static load rating 108 kN Grease Reference speed 2100 r/min Oil Limiting speed 2850 r/min - Properties
Bore type Cylindrical For Load Direction Radial Number of rows Double row Radial internal clearance C3 Tolerance class for dimensions Nomal Tolerance class for run-out P6 Seal type Without Lubricant None Relubrication feature Without - Weight and Material
Product net weight 0.7 kg Roller material Chrome steel Ring Material Chrome steel Cage Stamped steel
JRZC 21308 E/C3 is a compact spherical roller bearing suitable for small-to-medium machinery. The C3 clearance provides better thermal adaptability and smoother running under vibration.
FAQ
Q: Is this model suitable for high-speed machinery?
A: It supports moderate speeds with stable performance.
