Introduction

The 6006 ball bearing is one of the most widely used deep groove ball bearings in industrial and mechanical applications. Known for its versatility, durability, and standardized dimensions, it plays a critical role in ensuring smooth rotation and efficient performance across a wide range of equipment.

Whether you are an engineer, distributor, or procurement manager, understanding the 6006 bearing in detail—from specifications to applications—helps you select the right product and improve machine reliability.

In this complete guide, we will cover everything you need to know, including:

• 6006 bearing overview
• Technical specifications
• Difference between 6006RS and 6006ZZ
• Applications and industries
• 6000 series bearing size chart
• 6006 Bearing Material Selection

1. 6006 Bearing Overview

The 6006 bearing belongs to the 6000 series deep groove ball bearings, which are the most commonly used bearing type globally.

Key Features:

• Single row deep groove ball bearing
• Designed for radial and light axial loads
• High-speed capability
• Low noise and low friction
• Easy installation and maintenance

Basic Structure:

A 6006 bearing consists of:

• Inner ring
• Outer ring
• Steel balls
• Cage (retainer)
• Optional seals or shields

Because of its simple design and high efficiency, the 6006 is widely used in both industrial and consumer applications.

2. 6006 Bearing Technical Specifications

6006 Bearing Dimensions

• Bore diameter (d): 30 mm 
• Outer diameter (D): 55 mm 
• Width (B): 13 mm 

Load Ratings

• Dynamic load rating (Cr): ≈13.2 – 13.8 kN 
• Static load rating (C0): ≈8.0 – 8.5 kN 

Speed Ratings

• Grease lubrication: ~11,000 – 13,000 RPM 
• Oil lubrication: ~14,000 – 15,000 RPM 

Weight

• Approx weight: 0.11 – 0.12 kg 

Material

• Rings & balls: Chrome steel (GCr15 / 52100)
• Cage: Steel or stainless steel

Operating Temperature

• Typically: -30°C to +110°C 

Clearance & Precision

• Standard clearance: C0
• Optional: C3 (for higher speed or temperature conditions)

3. Difference: 6006RS vs 6006ZZ Bearing

One of the most common questions buyers ask is:

Should I choose 6006RS or 6006ZZ?

6006RS (Rubber Seal Bearing)

RS = Rubber Seal

Features:

• Contact-type seal
• Excellent dust and water protection
• Pre-lubricated with grease
• Lower speed capability

Advantages:

• Ideal for dusty or wet environments
• Longer service life under contamination

Disadvantages:

• Higher friction
• Slightly lower maximum speed

6006ZZ (Metal Shield Bearing)

ZZ = Double Metal Shield

Features:

• Non-contact metal shields
• Low friction
• Higher speed capability

Advantages:

• Suitable for high-speed applications
• Lower heat generation

Disadvantages:

• Limited protection against water and fine dust

Quick Comparison

Feature	6006RS	6006ZZ
Seal type	Rubber (contact)	Metal (non-contact)
Protection	Excellent	Moderate
Speed	Lower	Higher
Friction	Higher	Lower
Application	Dusty / wet	Clean / high-speed

Selection Tip:

• Choose 6006RS for harsh environments
• Choose 6006ZZ for high-speed, clean conditions

4. What Is 6006 Bearing Used For?

The 6006 bearing is widely used across multiple industries due to its balanced performance.

Industrial Applications

• Electric motors
• Gearboxes
• Conveyor systems
• Pumps and compressors

Automotive Applications

• Transmission systems
• Alternators
• Light-duty wheel components

Agricultural Machinery

• Tractors
• Harvesters
• Irrigation equipment

General Machinery

• Power tools
• Industrial fans
• HVAC systems

Consumer Equipment

• Washing machines
• Fitness equipment
• Small appliances

Why It’s So Popular

• Standardized size
• Easy replacement
• Cost-effective
• Reliable performance

5. 6000 Series Bearing Size Chart

Bearing No.	Bore (mm)	Outer Dia (mm)	Width (mm)
6000	10	26	8
6001	12	28	8
6002	15	32	9
6003	17	35	10
6004	20	42	12
6005	25	47	12
6006	30	55	13
6007	35	62	14
6008	40	68	15
6009	45	75	16
6010	50	80	16

---

6. How to Choose the Right 6006 Bearing

1. Load

• Moderate load → 6006 is suitable
• Heavy load → consider 6206 series

2. Speed

• High speed → ZZ
• Normal speed → RS or open

3. Environment

• Dust / water → RS
• Clean → ZZ

4. Clearance

• Normal → C0
• High temp / speed → C3

5. Quality Level

• Premium → longer lifespan
• Standard → cost-effective

7. Common Variants

• 6006 (open)
• 6006-Z
• 6006-ZZ
• 6006-RS
• 6006-2RS

8. Maintenance Tips

• Use proper lubrication
• Avoid overload
• Ensure correct installation
• Keep environment clean
• Replace worn bearings promptly

9. 6006 Bearing Material Selection

Choosing the right material for a 6006 bearing is essential to ensure optimal performance, durability, and cost-efficiency. The material directly affects key factors such as load capacity, corrosion resistance, operating speed, and overall service life.

The most commonly used material is chrome steel (GCr15 / SAE 52100). This material offers excellent hardness, wear resistance, and fatigue strength, making it ideal for general industrial applications such as electric motors, gearboxes, and pumps. It is also cost-effective, which is why it is widely used in standard bearing production.

For environments where moisture, chemicals, or high humidity are present, stainless steel (such as AISI 440C or 304) is a better choice. Stainless steel bearings provide superior corrosion resistance, although they typically have slightly lower load capacity compared to chrome steel. These are commonly used in food processing equipment, medical devices, and marine applications.

In high-speed or high-precision applications, ceramic or hybrid bearings (ceramic balls with steel rings) are increasingly popular. Ceramic materials offer lower friction, reduced heat generation, and higher rotational speeds. They also perform well in electrically sensitive environments due to their non-conductive properties. However, they come at a higher cost and are typically used in specialized applications.

Additionally, cage materials (such as steel, brass, or nylon) should also be considered depending on speed and temperature requirements.

In summary, selecting the right 6006 bearing material depends on balancing performance requirements, environmental conditions, and budget, ensuring reliable operation and extended service life.

9. Conclusion

The 6006 ball bearing is a highly reliable and versatile component used across industries. With its standardized dimensions (30×55×13 mm), solid load capacity, and multiple sealing options, it offers excellent performance for a wide range of applications.

Key Takeaways:

• Ideal for motors, pumps, and machinery
• RS vs ZZ depends on environment and speed
• Part of the widely used 6000 series
• Easy to source and replace globally

For manufacturers and buyers, the BYWB  6006 bearing remains a high-demand, essential product in the global market.