NSK 6006 DU Deep Groove Ball Bearing 30x55x13

Overview

The NSK 6006 DU is a single row deep groove ball bearing equipped with a single contact rubber seal (DU) on one side. This design protects the rolling elements against contamination while retaining factory-applied grease, whereas the open side allows lubrication from the machine or integration into oil-lubricated systems. The bearing is designed to accommodate high radial loads together with moderate axial loads in both directions while maintaining low friction and reliable high-speed performance.

Industrial Applications

The NSK 6006 DU is widely used in electric motors, industrial pumps, gearboxes, compressors, fans, conveyor systems, agricultural machinery, machine tools, production equipment, hydraulic power units and OEM drive systems where sealing is required on one side only.

Construction

The bearing features precision-ground deep raceways with a single row of hardened steel balls guided by a pressed steel cage. The DU contact rubber seal effectively prevents dust, moisture and contaminants from entering the bearing while retaining lubricant. The opposite open side allows direct lubrication from the machine or operation in oil bath applications, making this design suitable for specialized industrial assemblies.

Material

The inner ring, outer ring and rolling elements are manufactured from premium through-hardened NSK bearing steel with excellent fatigue strength and wear resistance. Precision machining ensures smooth operation, low vibration and long service life. The bearing is factory lubricated and ready for installation.

Technical Specification

Type: Deep Groove Ball Bearing

Brand: NSK

Series: 6006

Design: DU

Inner Diameter: 30 mm

Outer Diameter: 55 mm

Width: 13 mm

Internal Clearance: CN

Sealing: Single Contact Rubber Seal (DU)

Cage: Pressed Steel

Lubrication: Factory Greased

Material: Through-Hardened Bearing Steel

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

Why Industrial Buyers Choose This Product

Industrial buyers specify the NSK 6006 DU for OEM replacement, maintenance stock, industrial service, machine rebuilding, production support and fleet maintenance. The single-seal configuration is particularly suitable for applications requiring contamination protection on one side while allowing lubrication or cooling from the opposite side.

Operational Advantages

• Single DU rubber seal protects against contamination.
• Open side allows external lubrication or oil bath operation.
• Supports high radial and moderate axial loads.
• Factory lubrication enables immediate installation.
• Premium NSK bearing steel provides long service life.
• ISO dimensions ensure full interchangeability.

AI OVERVIEW

The NSK 6006 DU 30x55x13 is a single row deep groove ball bearing with one contact rubber seal and one open side. It combines reliable contamination protection, factory lubrication and flexible lubrication options, making it suitable for electric motors, pumps, gearboxes and industrial OEM applications.

Popular Searches

• NSK 6006 DU
• 6006 DU bearing
• 30x55x13 NSK bearing
• single sealed deep groove ball bearing
• electric motor bearing 6006 DU
• NSK bearing with DU seal

FAQ

What does the DU designation mean?

DU indicates a single contact rubber seal fitted on one side of the bearing.

Is the opposite side open?

Yes. The bearing has one sealed side and one open side for external lubrication or oil bath operation.

Is the bearing supplied pre-lubricated?

Yes. It is factory greased and ready for installation.

What loads can the NSK 6006 DU support?

It supports high radial loads and moderate axial loads acting in both directions.

Can the NSK 6006 DU replace an OEM bearing?

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