6202 Bearing Specifications: A Comprehensive Guide

Introduction

In the realm of mechanical components, bearings play a pivotal role, facilitating smooth movement and minimizing friction between rotating or sliding surfaces. Among the diverse range of bearings, the 6202 bearing stands out as a widely used and versatile choice. This article delves into the comprehensive specifications of the 6202 bearing, exploring its dimensions, load capacities, speeds, and applications.

Dimensions and Design

The 6202 bearing is a single-row deep groove ball bearing with the following dimensions:

• Inner Diameter (d): 15 mm
• Outer Diameter (D): 35 mm
• Width (B): 11 mm

| Specification | Value |
|---|---|
| Bore Diameter (d) | 15 mm |
| Outer Diameter (D) | 35 mm |
| Width (B) | 11 mm |
| Number of Balls | 9 |
| Ball Diameter | 6.35 mm |
| Mass | 0.075 kg |

The 6202 bearing features a single row of 9 balls with a diameter of 6.35 mm. Its compact design and low mass, weighing approximately 0.075 kg, make it ideal for space-constrained applications.

Load Capacities and Speeds

The 6202 bearing offers exceptional load-carrying capabilities:

• Basic Dynamic Load Rating (C): 4.6 kN
• Basic Static Load Rating (C0): 2.3 kN

| Load Type | Capacity |
|---|---|
| Basic Dynamic Load Rating (C) | 4.6 kN |
| Basic Static Load Rating (C0) | 2.3 kN |
| Limiting Speed | 10,000 rpm |

The Basic Dynamic Load Rating (C) indicates the load that the 6202 bearing can withstand for 1 million revolutions without fatigue failure. The Basic Static Load Rating (C0) represents the maximum static load that the bearing can support without permanent deformation.

The 6202 bearing can operate at speeds up to 10,000 rpm, making it suitable for high-speed applications. However, proper lubrication and maintenance are crucial to ensure optimal performance and longevity.

Materials and Lubrication

The 6202 bearing is typically manufactured using chrome steel (GCr15) for its durability and resistance to wear. The balls are made of high-carbon chromium steel (SUJ2) for enhanced hardness and load-carrying capacity.

For optimal lubrication, the 6202 bearing is designed to accommodate grease filling. Lithium-based greases are commonly used, providing good adhesion and resistance to water washout.

Applications

The versatility of the 6202 bearing makes it applicable across various industries and applications, including:

• Electric motors
• Power tools
• Pumps
• Gearboxes
• Conveyors
• Automotive components

Its compact size, high load capacities, and ability to withstand high speeds make the 6202 bearing an ideal choice for demanding applications where reliability and performance are paramount.

Humorous Stories

Story 1:

A young engineer, eager to impress his mentor, proudly presented a design for a high-speed machine incorporating the 6202 bearing. Impressed with the bearing's specifications, the mentor quipped, "That bearing will handle more load than a grumpy camel during rush hour!"

Lesson: Don't underestimate the capabilities of a well-chosen bearing.

Story 2:

A repair technician found himself replacing a 6202 bearing in an industrial gearbox. As he tightened the locking nut, he muttered to himself, "If this bearing could talk, it would tell tales of gears grinding and loads that could crush an elephant!"

Lesson: Bearings are the silent witnesses to the rigorous demands they endure.

Story 3:

Two engineers were arguing about the best bearing for a critical application. One insisted on a 6202 bearing, extolling its virtues. The other retorted, "A 6202 bearing? It's so small, it's like trying to hold a bowling ball with a chopstick!"

Lesson: Sometimes, even the most capable bearings may not be suitable for all applications.

Useful Tables

Table 1: Dynamic Load Capacities for Different Life Expectancies

Table 2: Static Load Capacities for Different Contact Angles

Table 3: Lubrication Recommendations

Tips and Tricks

• Proper lubrication: Ensure adequate lubrication to extend bearing life and prevent premature failure.
• Avoid contamination: Protect bearings from dirt, dust, and moisture to prevent damage and wear.
• Monitor bearing temperature: Excessive heat can indicate lubrication issues or bearing failure.
• Regular maintenance: Inspect bearings periodically for wear, damage, or noise and replace them when necessary.
• Use appropriate tools: Handle bearings with proper tools to avoid damage.

How to Step-by-Step Approach

1. Selection: Determine the bearing size, load requirements, speed, and environmental conditions to select the appropriate 6202 bearing.
2. Mounting: Press or fit the bearing into the housing with proper alignment, using an arbor press or similar tool.
3. Lubrication: Apply the recommended lubricant to the bearing.
4. Installation: Insert the shaft into the bearing, checking for smooth rotation and proper fit.
5. Locking: Secure the bearing in place with locking nuts or other locking mechanisms.
6. Commissioning: Test the bearing under actual operating conditions to ensure proper performance.

Why Matters

Bearings, like the 6202 bearing, are essential components in countless mechanical systems. Their proper selection, installation, and maintenance are crucial for:

• Reduced friction: Bearings minimize friction between rotating or sliding surfaces, leading to improved efficiency and energy savings.
• Extended equipment life: Properly maintained bearings can significantly extend the lifespan of machinery and equipment.
• Increased reliability: Bearings ensure smooth and reliable operation of mechanical systems, reducing downtime and maintenance costs.

Pros and Cons

Pros:

• High load capacity
• Compact design
• High-speed operation
• Versatile applications

Cons:

• Limited axial load capacity
• May require frequent lubrication
• Can be sensitive to misalignment

FAQs

1. What is the difference between a bearing and a bushing?
A bearing uses rolling elements (balls, rollers, etc.) to support and reduce friction, while a bushing directly contacts the mating surface.

2. What is the recommended lubrication interval for a 6202 bearing?
The lubrication interval depends on operating conditions, but periodic greasing every 3-6 months is generally recommended.

3. Can a 6202 bearing be used in both directions?
Yes, the 6202 bearing is a double-direction bearing that can handle loads in both directions.

4. What is the maximum operating temperature for a 6202 bearing?
The maximum operating temperature depends on the lubricant used, but generally ranges between 80-120°C.

5. How can I determine if a 6202 bearing needs replacement?
Signs of bearing failure include excessive noise, vibration, heat, or difficulty rotating.

6. What is the approximate lifespan of a 6202 bearing?
The lifespan of a 6202 bearing depends on operating conditions, but typically ranges between 10,000-50,000 hours.

Conclusion

The 6202 bearing is a versatile and widely used component in various mechanical applications. Its compact size, high load capacities, and high-speed operation make it an ideal choice for demanding applications. Proper selection, installation, lubrication, and maintenance are essential to ensure optimal performance and extended lifespan. By understanding the comprehensive specifications of the 6202 bearing and applying the principles discussed in this article, engineers and technicians can effectively utilize this bearing to enhance the reliability, efficiency, and longevity of their mechanical systems.