NU207 E C3 ZVL Cylindrical Roller Bearing | 35x72x17 mm | Single Row | C3 Clearance

What is the NU207 E C3 ZVL Bearing?

The NU207 E C3 ZVL is a premium single row cylindrical roller bearing designed to carry very high radial loads while allowing axial displacement of the shaft in both directions relative to the housing. Manufactured by ZVL Slovakia, it features a reinforced E internal design for increased load capacity and C3 internal clearance, making it suitable for applications exposed to elevated temperatures, heavy loads and high operating speeds.

Its separable construction simplifies installation and maintenance, making it an excellent choice for industrial machinery, electric motors, pumps, compressors and gearbox applications.

Technical Specifications

Key Features

The NU207 E C3 ZVL bearing offers:

• High radial load capacity
• Reinforced E internal design
• C3 internal clearance for demanding operating conditions
• Low friction
• Excellent dimensional accuracy
• High-speed capability
• Long service life
• European manufacturing quality

Typical Applications

The NU207 E C3 ZVL cylindrical roller bearing is commonly used in:

• Industrial gearboxes
• Electric motors
• Pumps
• Compressors
• Machine tools
• Conveyor systems
• Agricultural machinery
• Construction equipment
• Power transmission systems
• Heavy industrial machinery

NU Bearing Design

Bearings in the NU series feature two integral flanges on the outer ring and no flanges on the inner ring.

This design provides:

• Very high radial load capacity
• Free axial displacement of the shaft in both directions
• Compensation for thermal expansion
• Easy installation due to the separable construction
• Reduced internal stresses during operation

What Does the E and C3 Designation Mean?

The suffix E indicates an optimized internal bearing design with a higher number or improved arrangement of rollers, increasing radial load capacity.

The suffix C3 indicates greater-than-normal internal radial clearance, recommended for applications with:

• Elevated operating temperatures
• Heavy radial loads
• High rotational speeds
• Interference fits
• Thermal shaft expansion

Why Choose ZVL?

ZVL Slovakia is a respected European bearing manufacturer with decades of experience supplying rolling bearings for industrial, automotive and agricultural applications.

The NU207 E C3 ZVL provides:

• European manufacturing quality
• Precision engineering
• Reinforced internal design
• Stable operation
• Excellent durability
• Reliable performance under heavy-duty conditions

FAQ

What are the bearing dimensions?

The bearing dimensions are 35x72x17 mm.

What type of bearing is NU207 E C3?

It is a single row cylindrical roller bearing.

What does the E designation mean?

The E suffix indicates a reinforced internal design with increased load carrying capacity.

What does C3 mean?

C3 indicates radial internal clearance greater than normal, suitable for demanding operating conditions.

Can this bearing carry axial loads?

It primarily supports radial loads while allowing axial displacement in both directions. It is not intended to carry significant axial loads.

Does the bearing require lubrication?

Yes. Proper grease or oil lubrication is essential for maximum bearing life.

Frequently Asked Questions from Mechanics and Engineers

Why is C3 clearance important?

C3 clearance compensates for thermal expansion and interference fits, reducing the risk of excessive preload during operation.

Why choose the E design?

The reinforced E design increases radial load capacity while maintaining excellent running performance.

Is the bearing suitable for electric motors?

Yes. It is widely used in electric motors, pumps, gearboxes and industrial machinery requiring high radial load capacity.

What are the most common causes of premature bearing failure?

• Incorrect installation
• Insufficient lubrication
• Contamination
• Overloading
• Shaft or housing misalignment
• Corrosion
• Improper storage