21311 EK
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.
Tapered bore for secure fit
Strong radial load capacity
Reliable under vibration
Good self-aligning performance
Durable for long-term use
- Dimensions
Bore diameter 55 mm Outside diameter 120 mm Width 29 mm PerformanceBasic dynamic load rating 159 kN Basic static load rating 166 kN Grease Reference speed 1680 r/min Oil Limiting speed 2250 r/min - Properties
Bore type Tapered 1:12 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 1.64 kg Roller material Chrome steel Ring Material Chrome steel Cage Stamped steel
The JRZC 21311 EK is a tapered-bore spherical roller bearing offering reliable performance, strong load capacity, and excellent misalignment tolerance. Ideal for pumps, motors, reduction gears, and industrial drives.
FAQ
Q: Can this model be used with adapter sleeves?
A: Yes, it is compatible with H-series adapter sleeves.
