6202 Bearing 70124011 for Bullmer: Unshielded Performance for Demanding Applications
The 6202 bearing, a fundamental component in the world of machinery and motion control, is expertly manufactured by Bullmer under the model number 70124011. This specific model is an open-type deep groove ball bearing, engineered for reliability and efficiency in environments where maximum speed and accessibility are priorities. As a bearing without a cover, its internal components are exposed, making its design characteristics and ideal use cases distinct from sealed alternatives. Understanding the features and specifications of this bearing is crucial for selecting the right component for your mechanical needs.
Key Features and Design Characteristics
The 6202 bearing 70124011 by Bullmer is designed with simplicity and high performance in mind. Its most defining feature is its open structure. Without integrated seals or shields, this bearing allows for maximum accessibility and minimal friction. This design is ideal for applications where the housing provides a sealed environment, or where frequent re-lubrication is part of the standard maintenance schedule.
Constructed from high-quality chrome steel, this bearing offers excellent hardness, wear resistance, and long-term durability. It is precision-ground to ensure smooth operation, reduce vibration, and minimize noise levels. The deep groove raceway enables it to handle not just radial loads but also significant axial loads in both directions, making it a highly versatile solution for various industrial challenges.
Advantages of the Open Bearing Design
The primary advantage of this open bearing design is its exceptionally low operating torque and minimal friction generation. With no contact seals to create rotational drag, it can achieve higher speeds and improved operational efficiency, which can contribute to lower energy consumption.
Furthermore, the open design facilitates easier and more thorough lubrication. Grease or oil can be applied directly to the raceways and balls, and the bearing can be integrated into systems that allow for continuous re-lubrication, significantly extending its service life in high-demand settings. This accessibility also simplifies visual inspection and maintenance, as the internal components can be checked for wear without immediate disassembly.
A key operational consideration for this bearing is its susceptibility to contamination. The exposed internal components can be compromised by dirt, dust, and moisture. Therefore, this bearing performs best in clean environments or within protected, pre-lubricated assemblies that shield it from external pollutants.
Technical Parameters at a Glance
The following table summarizes the key specifications for the 6202 bearing by Bullmer:
| Parameter | Specification | Notes |
|---|---|---|
| Bearing Model | 6202 / 70124011 (Bullmer) | Standard industry designation |
| Bearing Type | Deep Groove Ball Bearing | Open type (No Seal/Shield) |
| Inner Diameter (d) | 15 mm | Standard metric size |
| Outer Diameter (D) | 35 mm | Standard metric size |
| Width (B) | 11 mm | Standard metric size |
| Dynamic Load Rating (Cr) | ~6.10 kN | Capacity to withstand rotating loads |
| Static Load Rating (Cor) | ~3.00 kN | Capacity to withstand stationary loads |
| Grease Limit Speed | ~24,000 rpm | Maximum speed with grease lubrication |
| Oil Limit Speed | ~30,000 rpm | Maximum speed with oil lubrication |
| Material | High-Carbon Chrome Steel | Provides excellent durability and wear resistance |
Ideal Applications for the 6202 Bearing
This open-type bearing is exceptionally versatile and is commonly found in applications such as:
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Electric Motors: Often used in internal positions where the motor housing itself provides protection.
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Gearboxes and Transmission Systems: Where controlled lubrication is present.
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Precision Instruments and Spindles: Where low friction and high rotational speed are paramount.
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Agricultural Machinery: In non-critical, easily serviceable components.
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Pumps and Compressors: As part of a larger sealed system.
In conclusion, the 6202 bearing 70124011 by Bullmer is a high-quality, efficient component designed for performance. By leveraging its advantages in speed and lubrication while mitigating contamination risks through proper housing, you can ensure optimal performance and longevity for your machinery.
