6208 2RS NR NSK Ball Bearing 40x80x18 Sealed with Snap Ring

Main Description

The 6208 2RS NR NSK ball bearing 40x80x18 is a single-row deep groove ball bearing with dual rubber seals and a retaining ring, designed for protected operation and precise axial positioning in industrial systems.

Within the deep groove ball bearings 62xx series, this model is optimized for environments where contamination, moisture, and limited maintenance access are critical factors. The 2RS sealing system protects the internal components from dust and water ingress while retaining lubricant inside the bearing, significantly extending service life. At the same time, the NR configuration provides a groove and snap ring for quick and secure axial fixation in the housing, eliminating the need for additional locking elements.

The 40x80x18 size is a widely used standard, ensuring compatibility with a broad range of machinery and industrial equipment.

Construction and Design

The 6208 2RS NR NSK bearing combines protective sealing with functional mounting features.

Key design features:

• single-row deep groove ball bearing
• rubber seals on both sides (2RS)
• precision groove in the outer ring
• retaining ring included for axial locking
• high-grade bearing steel for durability
• steel cage for consistent performance

The seals help prevent contamination and reduce lubricant loss, making the bearing suitable for demanding environments.

Industrial Applications

The 6208 2RS NR NSK bearing is ideal for applications requiring both environmental protection and axial stability.

Typical applications include:

• machinery operating in dusty or wet conditions
• conveyor systems and material handling equipment
• agricultural and construction machinery
• industrial drives and gear systems
• equipment with limited maintenance access

The snap ring ensures fast installation and reliable positioning within the housing.

Technical Parameters

• type: deep groove ball bearing
• series: 62xx
• model: 6208 2RS NR NSK
• inner diameter: 40 mm
• outer diameter: 80 mm
• width: 18 mm
• design: sealed on both sides (2RS)
• feature: groove and retaining ring (NR)
• material: bearing steel
• cage: steel
• operating characteristics: medium speed, high resistance to contamination

Operational Advantages

The 6208 2RS NR NSK bearing offers several advantages over open or shielded variants:

• high protection against dust, dirt, and moisture
• extended service life due to sealed lubrication
• integrated axial locking with snap ring
• reduced maintenance requirements
• quick and easy installation

This makes it a reliable solution for industrial environments where durability and efficiency are essential.

FAQ

What does 2RS NR mean in 6208 2RS NR NSK?
2RS indicates rubber seals on both sides, while NR means groove and retaining ring included.

Is this bearing suitable for wet environments?
Yes, the seals protect against moisture and contamination.

Does it include the snap ring?
Yes, NR versions are supplied with a retaining ring.

Can it be used in high-speed applications?
It is suitable for medium speeds due to sealing friction.

Where is this bearing typically used?
In conveyors, machinery, and industrial systems exposed to dust or moisture.