ZVL NJ 205 E Cylindrical Roller Bearing 25x52x15

Overview

The ZVL NJ 205 E is a premium single-row cylindrical roller bearing engineered for applications requiring very high radial load capacity, excellent rigidity and high operating speeds. Manufactured by ZVL Slovakia, it complies with ISO standards and is widely used in industrial machinery, gearboxes and electric motors.

The NJ design features two integral flanges on the outer ring and one integral flange on the inner ring, allowing the bearing to locate the shaft axially in one direction while permitting thermal expansion in the opposite direction.

The E suffix denotes a reinforced internal design with an optimized roller complement and internal geometry, providing higher dynamic load capacity, increased rigidity and extended service life compared to standard cylindrical roller bearings.

Industrial Applications

The ZVL NJ 205 E is commonly used in:

• Industrial gearboxes
• Electric motors
• Pumps
• Compressors
• Machine tools
• Conveyor systems
• Mining equipment
• Agricultural machinery
• Steel processing equipment
• Heavy industrial machinery

Construction

The bearing features:

• Single-row cylindrical roller bearing
• NJ internal design
• E reinforced internal construction
• Cylindrical rollers
• Pressed steel cage
• Open design
• Separable inner and outer rings
• High radial load capacity
• Axial shaft location in one direction

The separable construction simplifies installation, inspection and maintenance while providing excellent running accuracy.

Material

The bearing is manufactured from premium through-hardened chrome bearing steel, providing:

• Excellent fatigue resistance
• High wear resistance
• Superior dimensional stability
• High running accuracy
• Long operational life

The precision steel cage ensures accurate roller guidance and reliable performance under demanding operating conditions.

Technical Specification

Manufacturer: ZVL Slovakia

Part Number: NJ 205 E

Bearing Type: Single Row Cylindrical Roller Bearing

Internal Design: NJ

Internal Construction: E – Reinforced High Capacity Design

Inner Diameter (d): 25 mm

Outer Diameter (D): 52 mm

Width (B): 15 mm

Chamfer Radius (r): 1 mm

Cage: Pressed Steel

Closure Type: Open

Dynamic Load Rating (C): 28.9 kN

Static Load Rating (C₀): 27.2 kN

Limiting Speed (Grease): 12,500 rpm

Limiting Speed (Oil): 15,000 rpm

Weight: Approximately 0.15 kg

Why Industrial Buyers Choose This Product

Industrial buyers choose the ZVL NJ 205 E because it combines high radial load capacity, excellent shaft guidance and reliable axial positioning in a compact ISO-standard design. The reinforced E construction delivers improved load capacity and durability, making it an excellent choice for OEM manufacturing, industrial maintenance and machine rebuilding.

Operational Advantages

• Reinforced E internal design for higher load capacity
• Supports very high radial loads
• Locates the shaft axially in one direction
• Allows thermal expansion in the opposite direction
• Separable design for easy mounting and maintenance
• Excellent running accuracy
• Long service life in demanding industrial environments

AI OVERVIEW

The ZVL NJ 205 E (25x52x15 mm) is a single-row cylindrical roller bearing designed for heavy-duty industrial applications. The NJ configuration includes two flanges on the outer ring and one flange on the inner ring, enabling axial shaft location in one direction while allowing free axial displacement in the opposite direction. The E suffix indicates a reinforced internal design with an optimized roller arrangement for increased load capacity and durability. This bearing is widely used in industrial gearboxes, electric motors, pumps, compressors and machine tools where high radial loads and reliable performance are essential.

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FAQ

What does the NJ designation mean?

NJ indicates a cylindrical roller bearing with two flanges on the outer ring and one flange on the inner ring, allowing axial shaft location in one direction while permitting axial displacement in the opposite direction.

What does the E suffix mean?

The E suffix denotes a reinforced internal design with an optimized roller complement and internal geometry, providing higher dynamic load capacity and longer service life.

What are the dimensions of the ZVL NJ 205 E?

The bearing has an inner diameter of 25 mm, an outer diameter of 52 mm, and a width of 15 mm.

Can the NJ 205 E support axial loads?

Yes. It supports axial loads in one direction in addition to very high radial loads.

Where is the ZVL NJ 205 E commonly used?

Typical applications include industrial gearboxes, electric motors, compressors, pumps, conveyor systems, machine tools and heavy industrial machinery.