All About 6202 Bearing Size: A Comprehensive Guide

Introduction

The 6202 bearing is a widely used type of rolling-element bearing commonly found in various applications across industries. Understanding its dimensions and characteristics is crucial for designers, engineers, and technicians working with this essential component. This comprehensive guide will delve into the key features of the 6202 bearing size and provide valuable insights to optimize its usage.

Key Dimensions

The 6202 bearing has the following key dimensions:

• Bore Diameter: 15 mm
• Outer Diameter: 35 mm
• Width: 11 mm

These dimensions play a critical role in determining the compatibility of the bearing with the surrounding components and the overall performance of the system.

Applications and Benefits

The 6202 bearing finds applications in a wide range of industries, including:

• Automotive: Transmissions, pumps, and wheels
• Industrial: Electric motors, conveyors, and gearboxes
• Aerospace: Landing gear, flight control systems, and auxiliary power units

The benefits of using the 6202 bearing include:

• High load capacity
• Reduced friction
• Improved efficiency
• Long service life
• Versatility

Characteristics and Specifications

• Type: Single-row deep groove ball bearing
• Cage Material: Steel or polymer
• Seals: Optional, contact or non-contact
• Static Load Rating: 3.6 kN
• Dynamic Load Rating: 8.0 kN
• Speed Limit: 12,000 rpm

These characteristics define the performance and limitations of the 6202 bearing and guide its selection in specific applications.

Tips and Tricks

• Lubrication: Use the appropriate lubricant for the application and operating conditions.
• Mounting: Ensure proper alignment and fit to prevent premature failure.
• Maintenance: Perform regular inspections and replace the bearing as necessary to extend its lifespan.
• Storage: Store bearings in a dry, clean environment to prevent corrosion.
• Selection: Consider the specific requirements of the application and consult with an experienced supplier for optimal bearing selection.

Common Mistakes to Avoid

• Incorrect Mounting: Improper mounting can lead to misalignment, excessive friction, and premature bearing failure.
• Overloading: Applying excessive loads beyond the bearing's capacity can cause damage and reduce its performance.
• Contamination: Keep bearings clean and free from contaminants such as dirt, water, and chemicals.
• Ignoring Maintenance: Neglecting regular inspections and maintenance can compromise the bearing's performance and lead to costly failures.
• Substituting Bearings: Using bearings that do not meet the original specifications can result in reduced performance and reliability.

How-to: Step-by-Step Guide

Step 1: Select the Bearing

Determine the appropriate bearing size and specifications based on the application requirements.

Step 2: Prepare the Mounting Surface

Ensure the mounting surface is clean, flat, and free from any debris or burrs.

Step 3: Install the Bearing

Carefully insert the bearing into the housing or shaft. Use a press or hammer with a soft-faced mallet to avoid damage.

Step 4: Lubricate the Bearing

Apply the appropriate lubricant to the bearing's contact surfaces.

Step 5: Install the Shaft or Housing

Slide the shaft or housing into the bearing, ensuring proper alignment and fit.

Step 6: Tighten the Components

Securely tighten the bolts or nuts to hold the bearing in place.

FAQs

1. What is the difference between 6202 and 6203 bearings?

The 6203 bearing has a wider inner diameter (17 mm) compared to the 6202 bearing (15 mm), while their outer diameter and width remain the same.

2. How can I extend the lifespan of a 6202 bearing?

Proper lubrication, mounting, maintenance, and using the bearing within its specified load and speed limits can significantly extend its lifespan.

3. What type of lubricant is recommended for a 6202 bearing?

Lithium-based grease is a commonly used lubricant for 6202 bearings, providing good protection against wear and corrosion.

Interesting Stories

Story 1: The Case of the Mismatched Bearings

A technician was tasked with repairing a conveyor system that had suddenly stopped working. After disassembling the motor, he discovered that one of the 6202 bearings had been replaced with a bearing of a slightly different size. This mismatch caused misalignment and excessive friction, leading to the failure of the motor.

Lesson Learned: It is crucial to ensure that replacement bearings match the original specifications to avoid costly failures.

Story 2: The Importance of Lubrication

A factory experienced frequent failures of 6202 bearings used in their gearboxes. The bearings were not being properly lubricated due to a faulty lubrication system. As a result, the bearings overheated and failed prematurely.

Lesson Learned: Regular lubrication is essential for extending the lifespan of bearings and preventing costly downtime.

Story 3: The Bearing that Would Not Be Removed

A technician encountered difficulties removing a seized 6202 bearing from a shaft. Despite using various tools and techniques, the bearing remained firmly stuck. Finally, he resorted to a trick: he heated the bearing with a blowtorch. The heat caused the bearing to expand slightly, allowing him to remove it without damaging the shaft.

Lesson Learned: Sometimes, unconventional methods are necessary to overcome bearing removal challenges.

Conclusion

The 6202 bearing size is a versatile and widely used component in various industries. Understanding its key dimensions, characteristics, benefits, and applications is essential for engineers, designers, and technicians working with bearings. By following the tips, avoiding common mistakes, and adhering to the step-by-step guide, users can optimize the performance and lifespan of 6202 bearings in their systems.