R Series

What Are R Series Bearings?

R Series Bearings are high-precision components designed to support radial loads and ensure smooth motion in a wide range of machines. 

They belong to the family of ball bearings and are recognized for their standardized dimensions, making replacement and compatibility straightforward across different equipment.

The letter “R” in the classification identifies a specific group of sizes, widely used in both industrial and automotive applications. This designation helps users quickly determine inner diameter, outer diameter, and width, simplifying the selection process.

Compared to other bearing types, R Series stands out for its durability, cost-performance balance, and versatility. With chrome steel construction and either rubber sealed or metal shielded protection, these bearings ensure reliable operation and strong resistance against contaminants, even under demanding conditions.

How Do R Series Bearings Work?

R Series bearings operate with a single-row ball design, which evenly distributes weight and ensures smooth rotation. This compact structure allows them to handle radial loads effectively, reducing wear and extending the equipment’s service life.

A key advantage is that all PGN models come pre-lubricated, eliminating the need for initial maintenance and ensuring immediate performance after installation. 

The internal lubrication minimizes friction between balls and raceways, delivering quiet and consistent operation.

In addition, each bearing features built-in protection against dust, dirt, and moisture. Depending on the model, this can be achieved with rubber seals (2RS) or metal shields (ZZ).

As a result, the lubricant stays inside while contaminants remain out, which increases durability even in demanding environments.

Benefits of R Series Bearings

R Series Bearings deliver a combination of performance, convenience, and long-lasting durability:

• Manufactured from 100% chrome steel: they provide high wear resistance and withstand demanding work conditions while maintaining consistent efficiency.
  
  

• Availability of two protection types: 2RS (rubber seals), which offer excellent lubrication retention and moisture resistance, and ZZ (metal shields), designed to block dust and solid particles in industrial environments.
  
  

• Bearings support high speeds of up to 21,000 RPM in specific models: maintaining stability even under demanding conditions. This makes them ideal for applications that require both precision and speed.

Finally, their low-friction design minimizes maintenance needs and ensures smooth, reliable operation. For these reasons, R Series stands out as an efficient, cost-effective, and dependable solution across multiple industries.

Common Applications of R Series Bearings

R Series Bearings are designed to serve multiple industries, combining versatility with reliable performance:

• In automotive repairs and industrial machinery, they ensure smooth motion of critical parts, reducing friction and improving overall system efficiency.
  
  

• For construction equipment and agricultural machinery, these bearings are built to withstand harsh environments where dust, dirt, and constant vibration are common.
  
  

• They are also widely used in mild steel structures and general mechanical applications, where strength and durability are crucial to maintaining continuous operation. 

As a result, they deliver dependable performance for both heavy-duty tasks and everyday needs.

How to Choose the Right R Series Bearing

Selecting the right R Series bearing requires attention to a few technical factors that ensure proper performance. The first choice is between 2RS (rubber sealed) and ZZ (metal shielded) models. 

Rubber seals provide superior moisture protection and grease retention, while metal shields are better suited for environments with dust and solid particles.

It is also important to check the bearing dimensions — inner diameter, outer diameter, and width. These measurements determine compatibility with the shaft and housing, preventing failures during operation.

In addition, evaluating the dynamic load, static load, and RPM capacity is critical. These specifications indicate whether the bearing can handle the required speed, weight, and stress of the equipment. 

By considering these factors, users ensure longer service life, reduced wear, and the best cost-performance balance for their application.

Tips for Proper Use and Maintenance

To ensure maximum performance from R Series Bearings, it is important to follow a few usage and maintenance guidelines:

• The first step is proper installation. Bearings should be mounted carefully, using the correct tools to avoid damaging the balls or raceways.
  
  

• Another key factor is reducing wear and friction. Whenever possible, keep shafts clean and properly aligned.
  
  

• Adopting preventive maintenance practices significantly extends bearing lifespan.

Although R Series Bearings come pre-lubricated, regular inspections help detect unusual noise, vibrations, or early signs of wear. This ensures continuous operation, lowers downtime costs, and increases overall equipment reliability.

PGN R Series Product Line

The PGN R Series product line offers a complete selection of high-quality Bearings designed to meet diverse operational needs. Each model is engineered with 100% chrome steel and comes pre-lubricated for reliable performance. 

With options available in both rubber-sealed (2RS) and metal-shielded (ZZ) versions, the R Series ensures durability, protection against contaminants, and consistent operation across industrial, automotive, and agricultural applications. 

Below, explore the specifications and advantages of our most popular R Series models.

R10-2RS – Rubber Sealed

The R10-2RS measures 5/8" x 1-3/8" x 0.3438" and is built from 100% chrome steel. It supports up to 21,000 RPM, with a dynamic load rating of 4605 N and a static rating of 2774 N. 

With rubber seals on both sides, it ensures excellent grease retention and strong protection against moisture and contaminants. It is a reliable choice for medium-duty applications requiring durability and low friction.

R10-ZZ – Metal Shielded

The R10-ZZ has the same dimensions as the R10-2RS but features double metal shields that protect the bearing from dust and solid particles. 

With a maximum speed of 21,000 RPM, it is perfect for industrial environments with heavy contamination. It provides dependable performance for continuous, high-speed operations.

R12-2RS – Rubber Sealed

The R12-2RS measures 3/4" x 1-5/8" x 7/16" and supports up to 17,000 RPM. It has a dynamic load rating of 7246 N and a static rating of 4445 N. 

Rubber seals on both sides ensure excellent lubrication retention, extended lifespan, and stable performance. It is widely used in agricultural machinery and repair applications requiring extra durability.

R12-ZZ – Metal Shielded

The R12-ZZ shares the same dimensions as the R12-2RS but comes with double metal shields for added resistance in dusty and dirty environments. 

Designed for demanding industrial conditions, it offers stable performance, robust protection, and continuous reliability.

Why Choose PGN Bearings for R Series?

PGN R Series Bearings stand out for their balance of certified quality and excellent value. Each unit is made from 100% chrome steel, manufactured to precise standards that ensure consistent performance and long service life. 

This reliability makes them a trusted choice even for demanding industrial and agricultural environments.

Another advantage is the wide range of sizes and sealing options. The product line includes models with rubber seals (2RS) and metal shields (ZZ), allowing customers to select the ideal protection for their specific needs. This flexibility ensures maximum efficiency and durability in any application.

In addition, PGN provides fast shipping and expert technical support, helping customers choose the right bearing and resolve technical questions. 

By choosing PGN Bearings, users gain not only high-performance products but also a trusted partner dedicated to keeping operations safe and productive.

FAQ – Frequently Asked Questions

What is an R Series bearing?

R Series Bearings are single-row ball Bearings designed to handle radial loads and provide smooth motion. Made from chrome steel, they ensure high strength, low friction, and long service life for industrial, automotive, and agricultural applications.

What does the R mean in Bearings?

The letter “R” refers to a specific standardized size classification. This designation makes it easier to select and replace Bearings since it precisely defines inner diameter, outer diameter, and width.

What is the difference between R-2RS and R-ZZ?

The R-2RS model features rubber seals on both sides, offering better protection against moisture and improved grease retention. The R-ZZ, on the other hand, has double metal shields, ideal for blocking dust and solid particles in industrial settings.

Where should I use R Series Bearings?

They are widely used in industrial machinery, automotive repairs, construction equipment, and agricultural machines. They are also suitable for mild steel structures and other projects that require strength and continuous operation.

R Series Bearings: Strength You Can Depend On

PGN R Series Bearings combine strength, precision, and versatility in a complete line of solutions. With rubber-sealed (2RS) or metal-shielded (ZZ) options, they meet diverse needs while delivering reliable performance and long-lasting durability. 

Built from 100% chrome steel and backed by certified quality, they ensure safety in every application.

Whether for industrial machinery, automotive repairs, or agricultural equipment, R Series Bearings provide efficiency and cost savings to keep operations running smoothly. 

Choosing PGN Bearings means investing in premium products, fast delivery, and expert technical support. Explore our full line today and find the right bearing for your project.