21316 EK/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.
Tapered bore (EK) ensures secure mounting on adapter sleeves.
C3 clearance supports higher operating temperatures and dynamic loads.
Strong self-aligning capability reduces stress from misalignment.
High load-bearing steel for extended operational life.
- Dimensions
Bore diameter 80 mm Outside diameter 170 mm Width 39 mm PerformanceBasic dynamic load rating 331 kN Basic static load rating 375 kN Grease Reference speed 1140 r/min Oil Limiting speed 1590 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 4.46 kg Roller material Chrome steel Ring Material Chrome steel Cage Stamped steel
The JRZC 21316 EK/C3 spherical roller bearing is engineered for applications requiring high load capacity, reliable performance under vibration, and tolerance for shaft misalignment. The “EK” design provides a reinforced tapered bore for secure mounting, while the C3 internal clearance ensures optimal thermal expansion balance and smooth operation under heavy-duty conditions. This model is widely used in gearboxes, material-handling machinery, pumps, fans, and mining equipment.
FAQ
Q1: What is the benefit of the C3 clearance?
A1: It provides extra internal space for heat expansion, ideal for high-load applications.
Q2: Is the EK tapered bore easy to mount?
A2: Yes, it is designed for quick and reliable installation using adapter sleeves.
Q3: What industries commonly use this model?
A3: Mining machinery, fans, pumps, conveyors, and heavy industrial equipment.
Q4: Does JRZC offer OEM labeling?
A4: Yes, OEM customization is available.
