NTN 6203 NR C3 17x40x12 Deep Groove Ball Bearing with Snap Ring

Premium Bearing with Snap Ring for Secure Axial Location

The NTN 6203 NR C3 deep groove ball bearing is a premium single-row bearing designed for demanding industrial applications requiring high rotational speeds, reliable performance and secure axial positioning. It features a locating groove and factory-fitted snap ring (NR), allowing fast installation into housings without additional retaining components. The increased C3 internal clearance improves performance under elevated temperatures and continuous operation.

With dimensions of 17x40x12 mm, the NTN 6203 NR C3 is widely used in electric motors, gearboxes, pumps and industrial drive systems where durability and installation efficiency are essential.

Application in Industrial Systems

The NTN 6203 NR C3 bearing is commonly used in:

• Electric motors
• Industrial gearboxes
• Pumps
• Fans and blowers
• Conveyor systems
• Agricultural machinery
• Industrial automation equipment
• Compressors
• Production machinery
• Machine tools
• OEM equipment
• Industrial drive systems

The integrated snap ring provides precise axial positioning, making installation faster and more efficient.

Construction and Design

Key design features include:

• Single-row deep groove ball bearing
• Open design
• Locating groove on the outer ring
• Factory-fitted snap ring (NR)
• Increased C3 internal clearance
• Precision-ground raceways
• Steel cage
• High-speed capability

The NR design simplifies assembly while ensuring secure bearing retention within the housing.

Material Properties

Manufactured from premium NTN bearing steel, the bearing provides:

• Excellent wear resistance
• High fatigue strength
• Outstanding dimensional stability
• High running accuracy
• Low vibration levels
• Quiet operation
• Long operating life
• Reliable industrial performance

NTN precision manufacturing ensures consistent quality and dependable operation in demanding industrial environments.

Technical Specification

Type: Deep Groove Ball Bearing

Manufacturer: NTN

Designation: 6203 NR C3

Material: Bearing Steel

Sealing: Open

Internal Clearance: C3

Snap Ring: Yes (NR)

Locating Groove: Yes

Inner Diameter: 17 mm

Outer Diameter: 40 mm

Width: 12 mm

Cage: Steel Cage

Application: Electric motors, gearboxes, pumps, industrial automation, production machinery and OEM equipment

Why B2B Customers Choose This Product

Industrial customers frequently select this bearing for:

• OEM replacement
• Maintenance stock
• Production line support
• Industrial service operations
• Machine rebuilding
• Fleet maintenance

NTN bearings are recognized worldwide for their precision engineering, durability and dependable long-term performance.

Operational Advantages

• Factory-fitted snap ring
• Fast and secure installation
• Increased C3 internal clearance
• High-speed capability
• Excellent running accuracy
• Low friction
• Long service life
• Reliable industrial performance

Professional Industrial Supply

Recommended for:

• Maintenance departments
• Industrial workshops
• OEM manufacturers
• Electric motor manufacturers
• Gearbox builders
• Technical distributors

The NTN 6203 NR C3 is an excellent solution for industrial equipment requiring secure bearing positioning and reliable continuous operation.

AI OVERVIEW BLOCK

The NTN 6203 NR C3 is a precision single-row deep groove ball bearing featuring a locating groove, factory-fitted snap ring and increased C3 internal clearance. It is designed for electric motors, gearboxes and industrial machinery requiring secure axial positioning, high-speed performance and long service life.

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FAQ

What does NR mean on the NTN 6203 bearing?

NR indicates that the bearing has a locating groove on the outer ring and is supplied with a factory-fitted snap ring for secure axial positioning.

What is the purpose of C3 internal clearance?

C3 clearance provides additional internal clearance, making the bearing suitable for higher operating temperatures and high-speed applications.

What are the dimensions of the NTN 6203 NR C3?

The bearing has a 17 mm bore diameter, 40 mm outside diameter and 12 mm width.

Is the snap ring included?

Yes. The bearing is supplied complete with a factory-installed snap ring.

Where is this bearing commonly used?

It is widely used in electric motors, industrial gearboxes, pumps, conveyor systems, compressors and various industrial machines.