NJ 211 E TN C5 RICH Single Row Cylindrical Roller Bearing - Reinforced Polyamide Cage - 55 x 100 x 21 mm

Technical Specifications:

• Brand: RICH
• Type: Single Row Cylindrical Roller Bearing (NJ Type)
• Model: NJ 211 E TN C5
• Inner Diameter (d): 55 mm
• Outer Diameter (D): 100 mm
• Width (B): 21 mm
• Dimensions: 55 x 100 x 21 mm
• Cage Material: Polyamide (TN)
• Clearance: C5 - Greater than C4 (Extra-high radial clearance)
• Execution: Reinforced (E) - High load capacity
• Weight: 0.679 kg
• Country of Origin: China

Product Overview

The NJ 211 E TN C5 RICH is a high-capacity Single Row Cylindrical Roller Bearing engineered to withstand extremely heavy radial loads, high operating speeds, and demanding thermal conditions. Manufactured by RICH, this bearing is an ideal choice for large industrial gearboxes, heavy-duty transmissions, and high-performance motors.

This model features the **NJ design**, which includes integral flanges on the outer ring and a single flange on the inner ring. This configuration allows the bearing to accommodate minor axial displacement while also handling light, unidirectional axial (thrust) loads in addition to its superior radial capacity. The **E designation** signifies a reinforced design, meaning the bearing has optimized internal geometry for a much higher load rating. It utilizes a **polyamide cage (TN)** for quiet running and high-speed stability. Most critically, the bearing includes **C5 clearance**, the highest available standard internal clearance, making it essential for applications with high thermal expansion, extreme interference fits, or high levels of shock loading, preventing binding and maximizing operational life. The precise dimensions are 55 x 100 x 21 mm.

Key Performance Advantages:

• Extreme Load Capacity (E): Reinforced design provides significantly increased radial load rating.
• High Speed & Heat Resilience (C5): Extra-high internal clearance is optimized for high speeds, heavy loads, and severe temperature fluctuations.
• Polyamide Cage (TN): Offers reduced weight, low friction, and quieter operation compared to metal cages.
• Axial Guidance (NJ Type): Capable of handling minor axial positioning and light thrust loads.

Transparency Note

The NJ 211 E TN C5 bearing is manufactured by RICH in China to meet stringent quality and dimensional standards, ensuring reliable performance.