21316 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.
EK tapered bore improves mounting strength and precision.
Superior misalignment compensation enhances system durability.
High load capacity suited for industrial heavy-duty machinery.
Reliable performance under vibration and fluctuating loads.
- 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 spherical roller bearing features a tapered bore design optimized for secure mounting and high load performance. Built to withstand misalignment, shock loads, and continuous operation, this model is ideal for equipment requiring durability and stable rotation. It is commonly used in heavy-duty fans, pumps, gearboxes, conveyors, and industrial machinery operating under demanding conditions.
FAQ
Q1: What is the main benefit of the tapered bore (EK)?
A1: It allows secure mounting on adapter sleeves and improves shaft stability.
Q2: Is this bearing suitable for continuous heavy load?
A2: Yes, the internal roller geometry supports long-term heavy-duty operation.
Q3: Which industries use the 21316 EK?
A3: Fans, pumps, conveyors, gearboxes, and mining machinery.
Q4: Can JRZC supply this bearing with different clearances?
A4: Yes, C3 and C4 clearances are available on request.
