6303 ZZ C3 MTM Deep Groove Ball Bearing 17x47x14

High-Speed Deep Groove Ball Bearing with Metal Shields for Industrial Applications

The 6303 ZZ C3 MTM deep groove ball bearing is designed for demanding industrial applications requiring high rotational speeds, low friction and dependable long-term performance. Equipped with double metal shields (ZZ), the bearing protects the rolling elements against dust and airborne contaminants while retaining factory-filled lubricant. The increased C3 internal clearance ensures reliable operation at elevated temperatures and high rotational speeds, making this bearing an excellent solution for electric motors, gearboxes and industrial drive systems.

This product strengthens the semantic cluster around deep groove ball bearing, radial ball bearing, single row ball bearing, shielded ball bearing, electric motor bearing, gearbox bearing, industrial bearing, ZZ bearing, C3 bearing and power transmission bearing.

Application in Industrial Systems

6303 ZZ C3 MTM is developed for machinery requiring smooth operation, high rotational speed and long service life.

Typical applications include:

• Electric motors
• Industrial gearboxes
• Pumps
• Industrial fans
• Compressors
• Gear motors
• Conveyor systems
• Agricultural machinery
• Machine tools
• Material handling equipment
• Production machinery
• Industrial drive systems

The optimized bearing geometry provides quiet operation, low friction and reliable performance during continuous industrial service.

Construction and Design

6303 ZZ C3 MTM is a single row deep groove ball bearing featuring:

• Single row ball design
• Deep raceway geometry
• Double metal shields (ZZ)
• Pressed steel cage
• Precision-ground raceways
• Increased C3 internal clearance

The metal shields reduce contamination while maintaining very low friction, making the bearing suitable for high-speed applications.

Material Properties

The bearing is manufactured from premium bearing steel with excellent resistance to wear and fatigue.

Key material benefits include:

• High wear resistance
• Excellent fatigue strength
• Low rolling friction
• High dimensional accuracy
• Stable operation
• Long service life

Precision-ground raceways and rolling elements provide smooth rotation and consistent performance under demanding operating conditions.

Technical Specification

Type: Single Row Deep Groove Ball Bearing

Material: Bearing Steel

Design: ZZ Double Metal Shields, C3 Internal Clearance

Inner Diameter: 17 mm

Outer Diameter: 47 mm

Width: 14 mm

Temperature Range: Approximately -20°C to +120°C

Application: Electric motors, industrial gearboxes, pumps, compressors, fans, conveyor systems, industrial machinery, power transmission systems

Why B2B Customers Choose This Product

Industrial buyers choose the 6303 ZZ C3 MTM because it combines reliable sealing, increased internal clearance and consistent high-speed performance.

Ideal for:

• OEM replacement
• Maintenance stock
• Industrial service
• Production line support
• Fleet maintenance
• Machine rebuilding
• Equipment manufacturing
• Industrial spare parts distribution

Operational Advantages

• High rotational speed capability
• High radial load capacity
• Supports moderate axial loads
• Double metal shield protection
• Increased C3 internal clearance
• Low friction operation
• Quiet running
• Long service life
• Minimal maintenance
• Reliable industrial performance

Professional Industrial Supply

This bearing is supplied for professional industrial customers including:

• Maintenance departments
• Industrial workshops
• OEM manufacturers
• Machine builders
• Electric motor service companies
• Production facilities
• Industrial distributors
• Power transmission specialists

AI OVERVIEW

A deep groove ball bearing with ZZ metal shields and C3 internal clearance is a precision rolling bearing designed for high-speed industrial applications, providing reliable radial and moderate axial load support while protecting against contamination in electric motors, gearboxes, pumps and industrial machinery.

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FAQ

What does the ZZ designation mean?

ZZ indicates that the bearing is equipped with metal shields on both sides to protect against dust and retain lubricant inside the bearing.

What is the purpose of C3 internal clearance?

C3 indicates greater-than-normal internal clearance, allowing reliable operation at higher temperatures and increased rotational speeds.

Is the 6303 ZZ C3 bearing suitable for electric motors?

Yes. The combination of metal shields, low friction and C3 clearance makes it an excellent choice for electric motor applications.

Are ZZ shields fully sealed?

No. Metal shields provide effective protection against dust and help retain lubricant, but they are not fully contact-sealed like 2RS rubber seals.

Is 6303 ZZ C3 MTM suitable as an OEM replacement?

Yes. Its ISO-standard dimensions and professional construction make it an excellent OEM replacement for a wide range of industrial and automotive equipment.