ZVL N 305 E Cylindrical Roller Bearing 25x62x17 mm

What is the ZVL N 305 E Bearing?

The ZVL N 305 E is a premium single-row cylindrical roller bearing engineered for applications requiring very high radial load capacity, excellent rigidity and high-speed performance. The bearing features the N design, with two integral flanges on the inner ring and a flangeless outer ring, allowing axial displacement of the shaft relative to the housing to compensate for thermal expansion and shaft elongation.

The E suffix indicates an enhanced internal design with optimized roller geometry and increased roller complement, providing higher load capacity and extended service life while maintaining standard ISO dimensions.

Manufactured by ZVL, a respected European bearing manufacturer, the N 305 E offers reliable performance for demanding industrial applications.

Technical Specifications

Key Features

The ZVL N 305 E provides:

• Very high radial load capacity
• Enhanced E internal design
• Axial displacement capability
• Excellent rigidity
• Low rolling friction
• High-speed performance
• Long service life
• Precision European manufacturing
• Reliable operation under heavy-duty conditions

Typical Applications

The bearing is widely used in:

• Industrial gearboxes
• Electric motors
• Industrial pumps
• Compressors
• Fans and blowers
• Machine tools
• Production machinery
• Conveyor systems
• Agricultural equipment
• Construction machinery
• Mining equipment
• Heavy industrial machinery

N-Type Cylindrical Roller Bearing Design

The N-type cylindrical roller bearing features:

• Two integral flanges on the inner ring
• Flangeless outer ring
• Free axial displacement between shaft and housing
• Excellent radial load capacity
• High rigidity
• Outstanding performance at high rotational speeds

This design is particularly suitable for non-locating bearing positions where thermal expansion of the shaft must be accommodated.

What Does the "E" Design Mean?

The E designation identifies an enhanced internal bearing design.

Its advantages include:

• Increased radial load capacity
• Optimized roller geometry
• Higher number of rolling elements
• Improved load distribution
• Longer service life
• Higher operational reliability

Why Choose ZVL?

ZVL is one of Europe's established bearing manufacturers, producing high-quality rolling bearings for industrial, agricultural and mechanical engineering applications.

ZVL bearings are known for:

• European manufacturing quality
• Precision engineering
• Long operational life
• Excellent reliability
• Outstanding value for money

FAQ

What are the bearing dimensions?

The bearing dimensions are 25 × 62 × 17 mm.

What does the N design mean?

The N design features two flanges on the inner ring and no flanges on the outer ring, allowing free axial displacement of the shaft relative to the housing.

What does the E suffix indicate?

The E suffix identifies an enhanced internal design that provides higher radial load capacity through optimized roller geometry and internal construction.

Can this bearing carry axial loads?

The N 305 E is primarily designed for radial loads. It allows axial displacement but is not intended to carry significant axial loads.

Is the bearing suitable for high-speed applications?

Yes. Cylindrical roller bearings are designed for low-friction operation and excellent performance at high rotational speeds.

Frequently Asked Questions from Mechanics and Engineers

Why choose a cylindrical roller bearing instead of a ball bearing?

Cylindrical rollers provide a much larger contact area than balls, resulting in significantly higher radial load capacity and greater rigidity.

When should an N-type bearing be used?

N-type bearings are ideal for non-locating positions where thermal expansion or shaft movement must be accommodated without generating additional axial stresses.

What are the most common causes of cylindrical roller bearing failure?

• Improper lubrication
• Excessive loading
• Misalignment
• Contamination
• Incorrect installation
• Overheating
• Excessive vibration

Manufacturer (GSPR)

ZVL SLOVAKIA, a.s.

Hlavná 1796/60
024 01 Kysucké Nové Mesto
Slovakia