MR85-2RS Ball Bearing

The MR85-2RS Ball Bearing is a miniature deep groove ball bearing with double rubber seals designed for compact applications requiring precision, smooth rotation, and low operational friction.

Measuring 5x8x2.5mm, this miniature bearing is manufactured from chrome steel and supplied factory pre-lubricated to improve operational stability in small mechanical systems. The 2RS configuration helps preserve internal lubrication while reducing exposure to dust and moisture during operation.

Applications for the MR85-2RS

The MR85-2RS can be used in a variety of compact systems and precision equipment, including:

• Mini electric motors
• Electronic equipment
• Drones and gimbals
• RC models
• Precision instruments
• Small gear assemblies
• Automated equipment
• Compact rotating systems

Miniature bearings in this category are commonly selected for applications with limited installation space and stable rotational performance.

Features of the MR85-2RS Ball Bearing

Compact dimensions

Its 5x8x2.5mm size allows installation in small mechanisms and precision equipment.

Double rubber seals

The 2RS configuration helps retain lubrication while reducing entry of external debris.

Smooth operation

Deep groove design supports low vibration and improved operational stability even at higher speeds.

Chrome steel construction

Chrome steel provides dependable mechanical strength and reliable durability for continuous operation.

When to Use a Miniature Bearing

Miniature bearings like the MR85-2RS are commonly recommended for:

• Electronic equipment
• Compact applications
• Precision systems
• Small high-speed motors
• Automated equipment

Usage Recommendations

To help maximize bearing life:

• Maintain proper alignment
• Avoid excessive impact loads
• Keep the system clean
• Prevent overloading
• Monitor abnormal vibration

PGN Bearings Product Line

PGN Bearings supplies solutions for industrial, mechanical, and precision applications. The product line includes ball bearings, miniature bearings, roller chains, pillow block bearings, steel balls, and additional components designed for consistent performance and reliable operation.

FAQ

What does MR85-2RS mean?

MR85 identifies the miniature bearing size, while “2RS” indicates rubber seals on both sides of the bearing.

What size is the MR85-2RS?

This bearing measures 5x8x2.5mm.

Does the MR85-2RS come pre-lubricated?

Yes. The bearing comes factory pre-lubricated.

Can this bearing be used in drones and RC models?

Yes. The MR85-2RS is commonly used in drones, RC equipment, and compact rotating systems.

Is chrome steel durable?

Yes. Chrome steel provides dependable mechanical strength and reliable performance for compact applications.