6202 Bearing Specifications: A Comprehensive Guide to Dimensions, Load Ratings, and Applications

The 6202 bearing is a widely used ball bearing with a radial internal clearance and a single-row deep-groove design. It is renowned for its reliability, versatility, and cost-effectiveness, making it a popular choice for various industrial and automotive applications. This comprehensive guide will delve into the detailed specifications of the 6202 bearing to empower you with the necessary knowledge for informed decision-making.

Dimensions and Tolerances

Load Ratings and Dynamic Characteristics

The basic dynamic load rating indicates the load that the bearing can withstand for one million revolutions without experiencing fatigue failure. At the same time, the basic static load rating represents the permissible load under which the bearing can operate without causing permanent deformation.

Speed and Temperature Limits

The permissible operating speeds and temperatures of the 6202 bearing depend on factors such as the lubrication method, load conditions, and environmental conditions. Refer to the manufacturer's specifications for specific guidelines.

Applications

The versatility of the 6202 bearing makes it suitable for a wide range of applications, including:

• Automotive: Transmissions, pumps, and electric motors
• Industrial: Conveyors, fans, and gearboxes
• Agricultural Machinery: Tractors and combines
• Medical Equipment: Surgical tools and imaging devices

Stories to Illustrate the Importance of Bearing Specifications

Story 1:
A manufacturer of electric motors overlooked the importance of proper bearing selection. They installed 6202 bearings without considering the specific load and speed requirements of the application. As a result, the bearings failed prematurely, causing costly downtime and product recalls.

Learning: Understanding bearing specifications is crucial to prevent improper selection, which can lead to premature failure and financial setbacks.

Story 2:
A design engineer specified 6202 bearings for a high-speed conveyor system without considering the temperature limitations. The bearings overheated due to the high friction generated at elevated speeds, leading to premature wear and increased maintenance costs.

Learning: It is essential to consider the temperature limits of bearings to ensure optimal performance and longevity.

A Step-by-Step Approach to Selecting the Right 6202 Bearing

1. Identify the Load Conditions: Determine the radial and axial loads that the bearing will encounter during operation.
2. Calculate the Dynamic Load Rating: Multiply the radial load by a factor of 1.5 to account for potential shock loads. Select a bearing with a basic dynamic load rating higher than the calculated value.
3. Consider the Speed: Ensure that the bearing's maximum permissible speed exceeds the operating speed of the application.
4. Choose the Seal Type: Select an open bearing for clean environments, a shielded bearing for mild contamination, or a sealed bearing for harsh or wet conditions.
5. Verify the Dimensions: Confirm that the bore diameter, outer diameter, and width of the bearing are compatible with the application's design requirements.

Pros and Cons of 6202 Bearings

Pros:

• Reliability: Deep-groove design and precision manufacturing ensure long-term performance.
• Versatility: Suitable for various applications, including automotive, industrial, and medical.
• Cost-effectiveness: Widely available at competitive prices.

Cons:

• Limited Load Capacity: Compared to other bearing types, 6202 bearings have a lower load-carrying capacity.
• Speed Limitations: Operating speeds are limited to prevent overheating and premature wear.

FAQs

1. What is the difference between a 6202 bearing and a 6203 bearing?
   6203 bearings have a larger bore diameter (17mm) and outer diameter (40mm) compared to 6202 bearings.

2. Can 6202 bearings be relubricated?
   Yes, open and shielded 6202 bearings can be relubricated using appropriate lubricants.

3. What is the best lubricant for 6202 bearings?
   The optimal lubricant depends on the specific application and operating conditions. Consult the manufacturer's recommendations for guidance.

4. How do I store 6202 bearings?
   Store bearings in a clean, dry place to prevent corrosion and contamination.

5. What is the typical lifespan of a 6202 bearing?
   The lifespan depends on factors such as load conditions, lubrication, and maintenance practices. Properly maintained 6202 bearings can last for several years.

6. How do I inspect 6202 bearings for wear?
   Check for signs of excessive play, pitting, or discoloration on the raceways or rolling elements. Audible noise or vibration can also indicate wear.

7. What causes 6202 bearings to fail?
   Common causes include improper installation, overloading, contamination, and inadequate lubrication.

8. Where can I purchase 6202 bearings?
   6202 bearings are widely available from bearing manufacturers, distributors, and online retailers.

Call to Action

To ensure optimal performance and longevity of your 6202 bearings, consult with a qualified bearing specialist or refer to the manufacturer's specifications for detailed guidance. By understanding the bearing's specifications, you can make informed decisions that will ultimately enhance the reliability and efficiency of your applications.