6304 2RS CT 20x52x15 Deep Groove Ball Bearing

6304 2RS CT 20x52x15 Deep Groove Ball Bearing

6304 2RS CT is a single-row deep groove ball bearing measuring 20x52x15 mm, featuring rubber seals on both sides. Its construction consists of an inner ring, outer ring, rolling balls and cage. The deep groove raceways allow the bearing to accommodate radial loads and axial loads in both directions, subject to its technical limits. The 6304 bearing series is used in appropriately designed rotating assemblies across industrial machinery and mechanical equipment. When selecting a replacement, the complete designation, dimensions and operating requirements must be verified.

6304 2RS CT Bearing - Design and Characteristics

The 6304 2RS CT belongs to the family of single-row deep groove ball bearings.

This bearing design uses a single row of balls running between the inner and outer raceways to support rotational movement under load.

Rubber seals fitted on both sides help prevent dust and other contaminants from entering the rolling element area while reducing lubricant leakage.

The 2RS configuration is particularly relevant where additional protection of the internal bearing components is required.

6304 2RS CT Technical Specifications

Bearing designation: 6304 2RS CT

Bearing type: Single-row deep groove ball bearing

Basic bearing series: 6304

Bore diameter (d): 20 mm

Outside diameter (D): 52 mm

Width (B): 15 mm

Seal configuration: 2RS

Sealing arrangement: Rubber seals on both sides

Number of ball rows: 1

Load direction: Radial loads and axial loads in both directions

Bearing clearance: Not confirmed for this CT designation

Cage material: Not confirmed

Dynamic load rating: Manufacturer confirmation required

Static load rating: Manufacturer confirmation required

Limiting speed: Manufacturer confirmation required

Operating temperature range: Manufacturer confirmation required

What Does 6304 2RS CT Mean?

The bearing designation provides important information about its basic construction and sealing arrangement.

6304 identifies the basic dimensional series and deep groove ball bearing design.

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

CT is a commercial identifier associated with this product. Its exact manufacturer or designation meaning should be confirmed using the product packaging or official documentation.

The 2RS suffix alone does not establish the bearing's internal clearance class, cage material, grease specification or operating temperature range.

Why Choose a 6304 2RS Sealed Bearing?

The principal advantage of the 2RS configuration is the protection provided by its two rubber seals.

These seals help reduce the entry of external contamination into the rolling element area.

They also help retain lubricant inside the bearing during normal operation.

However, a rubber-sealed bearing should not automatically be considered waterproof or suitable for high-pressure washing, aggressive chemicals or every operating environment.

Selection must account for the actual working conditions of the equipment.

How Does the 6304 2RS Deep Groove Ball Bearing Work?

During operation, the inner and outer rings rotate relative to one another while the balls roll along the raceways.

Rolling contact reduces friction compared with direct sliding contact between the corresponding surfaces.

The deep groove geometry allows the bearing to support radial loads as well as axial loads acting in either direction.

The permissible load levels depend on the technical specifications of the exact bearing version and its operating conditions.

How to Select the Correct 6304 2RS CT Bearing

Before purchasing or installing a replacement bearing, verify the following:

• Shaft diameter: 20 mm
• Housing bore diameter: 52 mm
• Required bearing width: 15 mm
• Sealing configuration: 2RS
• Radial and axial load requirements
• Operating speed
• Required internal clearance
• Operating temperature
• Environmental contamination
• Lubrication requirements
• Mounting and fit conditions

For machinery repairs, compare the complete bearing designation with the original equipment documentation whenever available.

Matching dimensions alone do not guarantee full technical interchangeability.

6304 2RS vs 6304 ZZ - What Is the Difference?

Both versions belong to the same basic dimensional bearing series, but their closure arrangements differ.

6304 2RS features rubber seals on both sides.

6304 ZZ features metal shields on both sides.

The sealing design can influence contamination protection, friction and operating characteristics.

Neither version should automatically be substituted for the other without reviewing the application's requirements.

6304 2RS CT for Industrial Maintenance and MRO

In industrial maintenance, bearing identification often begins with the designation printed or engraved on a removed component.

Maintenance engineers and MRO purchasing teams may need to locate a replacement matching the original bearing's dimensions, sealing arrangement and other technical characteristics.

The designation 6304 2RS CT provides a useful starting point for identifying the required product.

Before installation, the condition of the shaft, housing and surrounding mechanical components should also be checked.

Applications of the 6304 Bearing Series

Deep groove ball bearings of the 6304 dimensional series may be used in appropriately designed rotating assemblies, including:

• Electric motors
• Mechanical drive systems
• Pumps
• Fans and ventilation equipment
• Industrial machinery
• Rotating shafts and mechanical assemblies
• Maintenance and repair equipment

These are general applications of the bearing series, not confirmed OEM applications or specific compatibility claims for the CT product.

Actual suitability depends on load, speed, lubrication, temperature, fits and other operating conditions.

Engineering Advantages of the 6304 2RS Design

1. Standardized dimensions

The 20x52x15 mm dimensions make the basic bearing size straightforward to identify.

2. Single-row ball bearing construction

The design supports rotational movement in a wide range of appropriately engineered assemblies.

3. Radial and axial load capability

Deep groove raceways accommodate radial loading and axial loading in both directions within specified limits.

4. Double-sided rubber sealing

The 2RS configuration helps reduce the entry of dust and contaminants.

5. Lubricant retention

The seals help retain lubricant inside the bearing.

6. Clear product identification

The complete designation supports more accurate searches during maintenance, repair and replacement procurement.

Why Bearing Dimensions Alone Are Not Enough

Two bearings can share the same bore diameter, outside diameter and width while having different technical characteristics.

Potential differences include:

• Internal clearance
• Seal or shield design
• Cage construction
• Lubrication
• Precision class
• Load ratings
• Speed capabilities
• Special manufacturer-specific features

For this reason, bearing identification should consider the manufacturer, complete designation, dimensions and verified technical specifications.

Frequently Asked Questions - 6304 2RS CT

What are the dimensions of the 6304 2RS CT bearing?

The bearing has a 20 mm bore diameter, 52 mm outside diameter and 15 mm width.

Is 6304 2RS CT a deep groove ball bearing?

Yes. It is identified as a single-row deep groove ball bearing with seals on both sides.

What does 2RS mean on a bearing?

The 2RS designation indicates rubber seals fitted on both sides of the bearing.

Can a 6304 2RS bearing support axial loads?

Yes. Deep groove ball bearings can accommodate axial loads in both directions within the limits specified for the particular bearing.

Does 6304 2RS CT have C3 clearance?

C3 clearance cannot be confirmed from the designation 6304 2RS CT alone. The exact clearance specification must be verified with the manufacturer.

Are 6304 2RS and 6304 ZZ identical?

No. The 2RS version uses rubber seals, while the ZZ version uses metal shields. Their operating characteristics may differ.

Is the 6304 2RS bearing pre-lubricated?

Bearings of this sealed design are commonly supplied with factory-applied grease. However, the exact lubrication specification of the CT product requires manufacturer confirmation.

Can I replace 6304 2RS with 6304 C3?

Not automatically. C3 specifies an internal clearance class, while 2RS identifies a sealing arrangement. Both characteristics must be considered when selecting a replacement.

Is 6304 2RS CT suitable for an electric motor?

The 6304 bearing series can be used in appropriately designed electric motor assemblies. Compatibility with a particular motor and the CT version must be verified.

How do I identify an equivalent 6304 2RS bearing?

Compare the complete designation, dimensions, sealing arrangement, internal clearance, load ratings, speed requirements and operating conditions. Matching the number 6304 alone is insufficient.

What is the bore diameter of a 6304 bearing?

The nominal bore diameter is 20 mm.

What is the outside diameter of a 6304 bearing?

The nominal outside diameter is 52 mm.

What is the width of a 6304 bearing?

The nominal bearing width is 15 mm.

Can I search for 6304 2RS CT by part number?

Yes. Use the complete designation 6304 2RS CT when searching for the product at simmering.pl.

6304 2RS CT - Technical Summary

The 6304 2RS CT 20x52x15 mm is a single-row deep groove ball bearing with double-sided rubber seals. Its construction supports radial and axial loads within the technical limits of the specific bearing. The 2RS sealing arrangement helps protect internal rolling elements against contamination and retain lubricant. When selecting this bearing for industrial equipment, verify the complete designation and application requirements.

6304 2RS CT - European Supply from simmering.pl

simmering.pl supplies bearings and industrial components to maintenance departments, machinery repair companies, industrial buyers and B2B customers.

Warehouse and store:

Smoluchowskiego 1, Building 4

Lublin, Poland

Products available in warehouse stock can be dispatched within 24 hours.

For international orders, shipping availability and delivery conditions should be confirmed before purchase.

Looking for a 6304 2RS CT bearing? Search by exact part number at simmering.pl or contact us with the required quantity.