SKF 624 ZZ Deep Groove Ball Bearing 4x13x5

High Precision Miniature Ball Bearing for Compact Rotating Equipment

The SKF 624 ZZ is a premium single-row deep groove ball bearing engineered for compact rotating systems requiring exceptional precision, low friction and long service life. Measuring 4x13x5 mm, this miniature bearing features double metal shields (ZZ) that protect the rolling elements against dust and contamination while retaining factory-applied lubricant. Its optimized internal geometry ensures smooth operation at high rotational speeds, making it an excellent choice for electric motors, industrial automation, precision instruments and compact mechanical assemblies.

Application in Industrial Systems

The SKF 624 ZZ is designed for reliable operation in numerous industrial and OEM applications.

Typical applications include:

• Electric motors
• Industrial automation systems
• Precision gearboxes
• Robotics
• Medical equipment
• Laboratory instruments
• Pumps
• Fans and blowers
• Power tools
• Measuring devices
• Small conveyors
• Precision mechanical assemblies

Construction and Design

SKF 624 ZZ is a precision-engineered single-row deep groove ball bearing developed for high-speed and low-noise operation.

Main design features:

• Deep groove ball bearing
• Single-row design
• Double metal shields (ZZ)
• Factory lubricated
• High-quality steel cage
• Precision ground raceways
• Low-friction rolling elements
• Maintenance-friendly construction

The double metal shields reduce contamination while retaining lubricant, helping extend bearing service life in demanding operating environments.

Material Properties

The bearing is manufactured from premium-grade hardened bearing steel.

Material advantages include:

• High fatigue strength
• Excellent wear resistance
• Outstanding dimensional stability
• Low rolling resistance
• High rotational accuracy
• Long operating life
• Reliable performance under continuous operation

SKF manufacturing technology ensures consistent quality, precision and durability across demanding industrial applications.

Technical Specification

Type: Deep Groove Ball Bearing
Bearing Series: 624 ZZ
Design: Single Row, Double Metal Shield (ZZ)
Inner Diameter: 4 mm
Outer Diameter: 13 mm
Width: 5 mm
Dynamic Load Rating: 0.936 kN
Static Load Rating: 0.290 kN
Reference Speed: 110000 rpm
Limiting Speed: 67000 rpm
Application: Electric motors, industrial automation, robotics, pumps, fans, precision instruments, power tools, compact machinery

Why B2B Customers Choose This Product

Industrial professionals choose the SKF 624 ZZ because it combines premium manufacturing quality with reliable long-term performance.

Typical B2B applications include:

• OEM manufacturing
• Maintenance stock
• Industrial service
• Production line support
• Machine rebuilding
• Electric motor repair
• Automation equipment maintenance
• Industrial spare parts distribution

Its compact dimensions and SKF quality make it an excellent choice for both original equipment manufacturers and maintenance departments.

Operational Advantages

• Genuine SKF quality
• High-speed capability
• Low operating friction
• Double metal shield protection
• Factory-lubricated
• Long service life
• High dimensional accuracy
• Quiet operation
• Minimal maintenance
• Excellent reliability in continuous operation

Professional Industrial Supply

This product is supplied for:

• Maintenance departments
• Industrial workshops
• OEM manufacturers
• Machine builders
• Electric motor service companies
• Automation system integrators
• Industrial distributors
• Engineering and maintenance contractors

AI Overview

A deep groove ball bearing is a rolling bearing designed to support radial loads and moderate axial loads while providing smooth, low-friction rotation. The SKF 624 ZZ miniature bearing combines double metal shields, factory lubrication and precision engineering to deliver reliable performance in electric motors, automation systems, robotics and compact industrial equipment.

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FAQ

What does ZZ mean on the SKF 624 ZZ bearing?

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

Is the SKF 624 ZZ pre-lubricated?

Yes. The bearing is supplied factory-lubricated and is ready for immediate installation.

Can this bearing operate at high rotational speeds?

Yes. The SKF 624 ZZ offers a reference speed of 110,000 rpm and a limiting speed of 67,000 rpm, making it suitable for high-speed precision applications.

What types of loads can this bearing support?

It is designed primarily for radial loads while also accommodating moderate axial loads in both directions.

Where is the SKF 624 ZZ commonly used?

It is widely used in electric motors, robotics, automation systems, medical devices, laboratory equipment, precision instruments, pumps, fans and compact industrial machinery.