SKF 6203 2RSL C3 Deep Groove Ball Bearing 17x40x12

Overview

The SKF 6203 2RSL C3 is a single row deep groove ball bearing engineered for high-speed industrial applications requiring low friction, reliable sealing and increased internal clearance. It features SKF 2RSL low-friction contact seals on both sides to retain lubricant while minimizing frictional losses. The C3 internal clearance compensates for thermal expansion during operation, making the bearing suitable for electric motors, pumps and continuously operating industrial equipment.

Industrial Applications

The bearing is widely used in electric motors, centrifugal pumps, industrial fans, compressors, gearboxes, HVAC systems, conveyor drives, agricultural machinery, automation equipment and OEM power transmission systems. It is particularly suitable for applications combining high rotational speeds with elevated operating temperatures.

Construction

The 6203 2RSL C3 incorporates precision-ground raceways, hardened steel balls and SKF 2RSL low-friction contact seals. Unlike conventional contact seals, the 2RSL design reduces sealing friction while maintaining excellent grease retention and contamination protection. The C3 internal clearance ensures proper operating clearance after thermal expansion under continuous service conditions.

Material

The rings and rolling elements are manufactured from premium through-hardened bearing steel with excellent fatigue strength and wear resistance. The elastomer low-friction seals effectively protect the bearing against dust, moisture and lubricant loss, extending service life while reducing maintenance requirements.

Technical Specification

Type: Deep Groove Ball Bearing

Brand: SKF

Series: 6203

Design: 2RSL C3

Inner Diameter: 17 mm

Outer Diameter: 40 mm

Width: 12 mm

Internal Clearance: C3

Sealing: SKF 2RSL Low-Friction Contact Seals

Material: Through-Hardened Bearing Steel

Application: Electric motors, pumps, fans, compressors, gearboxes, HVAC systems, industrial machinery and OEM equipment

Why Industrial Buyers Choose This Product

Industrial buyers specify the SKF 6203 2RSL C3 for OEM replacement, maintenance stock, industrial service, machine rebuilding, production support and fleet maintenance. The combination of low-friction SKF 2RSL seals and C3 clearance delivers reliable operation, reduced energy losses and extended bearing life in demanding industrial environments.

Operational Advantages

• SKF 2RSL seals reduce friction while retaining grease.
• C3 internal clearance compensates for thermal expansion.
• Factory lubricated for immediate installation.
• Excellent protection against dust and moisture.
• Optimized for high-speed continuous operation.
• Premium SKF manufacturing quality and dimensional accuracy.

AI OVERVIEW

The SKF 6203 2RSL C3 17x40x12 is a sealed deep groove ball bearing featuring low-friction SKF 2RSL contact seals and increased C3 internal clearance. It is designed for high-speed industrial equipment where efficient sealing, low running torque and reliable long-term performance are required.

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FAQ

What does 2RSL mean?

2RSL refers to SKF low-friction contact seals that provide effective grease retention and contamination protection with lower sealing friction than conventional contact seals.

What is the purpose of C3 internal clearance?

C3 clearance provides additional internal radial clearance to compensate for thermal expansion during operation at higher temperatures and speeds.

Is the bearing supplied pre-lubricated?

Yes. The bearing is factory lubricated and ready for installation.

Where is the SKF 6203 2RSL C3 commonly used?

It is widely used in electric motors, pumps, compressors, fans, industrial gearboxes and OEM machinery.

Can this bearing replace an OEM bearing?

Yes, provided the dimensions, bearing designation and operating specifications match the original equipment requirements.