608-2RS Ball Bearing

The 608-2RS Ball Bearing is a compact deep groove ball bearing engineered for applications requiring high-speed rotation, lubrication protection, and smooth operation in lightweight and precision equipment.

Widely used in skateboards, roller skates, small motors, power tools, and automated systems, the 608-2RS combines double rubber seals (2RS), reduced vibration, and dependable operational stability in continuous-duty applications. Its chrome steel construction provides strong mechanical durability and extended service life even in frequently used equipment.

The PGN Bearings version also features C3 clearance, an important advantage for elevated RPM applications and thermal expansion during continuous operation.

Common Applications for the 608-2RS

The 608-2RS is widely used in compact applications requiring efficient rotation and reduced noise levels, including:

• Skateboards
• Roller skates
• Inline skates
• Power tools
• Small electric motors
• Automated systems
• RC systems
• Compact fans
• Precision equipment

The 608 model is globally recognized for combining high-speed capability, low friction, and excellent adaptability in compact systems.

Main Features of the 608-2RS

Double rubber seals

Rubber seals help preserve internal lubrication while providing additional protection against fine dust and light contaminants.

Excellent high-speed performance

The 608-2RS is engineered for medium and high-speed applications with stable operation and reduced heat generation.

C3 clearance for improved operational efficiency

C3 clearance provides additional internal clearance, supporting elevated RPM applications and thermal expansion during continuous operation.

Smooth and quiet operation

Deep groove geometry delivers consistent rotation, reduced vibration, and dependable operational stability.

Chrome steel construction

Manufactured from hardened chrome steel to provide dependable mechanical strength and improved durability in rotating applications.

When Is the 608-2RS Commonly Recommended?

This model is typically selected when applications require:

• high rotational speed
• additional lubrication protection
• compact equipment
• continuous-duty operation
• reduced maintenance

Difference Between 608-2RS and 608-ZZ

Although both belong to the same series, there are important differences between the configurations.

608-2RS

• rubber seals
• improved grease retention
• additional protection against light contaminants
• focused on reduced maintenance

608-ZZ

• metal shields
• lower rolling resistance
• improved extreme RPM performance
• better suited for dry environments

Installation Recommendations

To improve bearing service life:

• Use proper installation tools
• Avoid installation impact
• Control operating temperature
• Verify shaft alignment
• Monitor excessive vibration

PGN Bearings Product Line

PGN Bearings supplies components for industrial automation, mechanical power transmission, and rotating systems. The catalog includes deep groove ball bearings, mounted bearings, pillow blocks, roller chains, flanged bearings, and solutions engineered for continuous industrial applications.

FAQ

What does 2RS mean on a bearing?

“2RS” indicates rubber seals on both sides of the bearing.

Does the 608-2RS come pre-lubricated?

Yes. The bearing comes factory pre-lubricated.

What does C3 clearance mean?

C3 indicates greater internal clearance than standard bearings, commonly used for high-speed and elevated-temperature applications.

Can this bearing be used in skateboards?

Yes. The 608-2RS is widely used in skateboards, roller skates, and inline skates.

Is this model suitable for high-speed operation?

Yes. The 608-2RS is designed for medium and high-speed applications with dependable operational stability.