Engineered for thrill and reliability | High Quality 12x21x5mm Miniature Ball Bearing for Engine
The High Quality 12x21x5mm Miniature Ball Bearing for Engine is designed for performance and durability, ideal for use in automotive engines and machinery requiring high precision and reliability. Crafted from high-grade chrome steel, this miniature ball bearing offers low friction and smooth operation, ensuring your engine’s components work seamlessly even under heavy load. Featuring a deep groove ball bearing structure and an RS seal, this bearing is built to resist contaminants, providing long-lasting protection and enhanced performance. With a high precision rating of P2 and low noise level, this bearing ensures maximum reliability for engine applications.
The High Quality 12x21x5mm Miniature Ball Bearing for Engine is built to endure the rigors of high-speed machinery and engine components. The RS seal ensures that the bearing is protected from moisture and dust, which are common contaminants in engine environments. This feature significantly increases the lifespan of the bearing, reducing the need for frequent replacements and maintenance. With its robust construction, the bearing performs reliably under various operating conditions, whether in low or high temperatures, making it an ideal choice for both standard and high-performance engines.

In addition to its durability, the high precision rating (P2) ensures that the bearing maintains smooth operation even at high speeds. This minimizes vibrations and enhances the overall efficiency of the engine, leading to improved fuel efficiency and reduced wear and tear on other engine components. Whether you’re working on motorbike engines, car engines, or industrial machinery, the High Quality 12x21x5mm Miniature Ball Bearing for Engine guarantees long-lasting reliability and performance, making it an essential part of any high-performance engine setup.
Technical Specifications
| Attribute | Value |
|---|---|
| Product Name | High Quality 12x21x5mm Miniature Ball Bearing for Engine |
| Applicable Industries | Automobile Industry |
| Precision Rating |
P2
|
| Number of Rows |
Single row
|
| Inner Diameter |
12 mm
|
| Outer Diameter | 21 mm |
| Width | 5 mm |
| Sealing Type | RS Seal |
| System of Measurement | Metric |
| Material |
Chrome Steel Gcr15
|
| Warranty | 12 Months |
| Bearing Type | Deep Groove Ball Bearing |
| Load Type | Radial Load |
| Lubrication |
Oil Grease
|
| Application | Engine |
| Noise Level |
Z1,Z2,Z3
|
| Vibration Level |
V1 V2 V3 V4
|
| Clearance | C2 C0 C3 C4 C5 |
| Structure Type | Deep Groove Structure |
| Bore Type | Cylindrical Bore |
| Fit Type | Press Fit |
| Housing Compatibility | Suitable for standard bearing housings |
Why Choose High Quality 12x21x5mm Miniature Ball Bearing for Engine?
🔹 Designed specifically for engine applications and high-speed machinery
🔹 Precision P2 rating for excellent operational efficiency
🔹 Single row deep groove design for optimized performance
🔹 RS seal type for protection against dust and moisture
🔹 Made from durable chrome steel Gcr15 for strength and longevity
🔹 Lubricated with oil or grease to ensure smooth running and longevity
🔹 Available in multiple clearance options: C2, C0, C3, C4, C5
🔹 Reliable noise levels (Z1, Z2, Z3) for a quieter engine operation
Maintenance Tips for Longevity
🔹 Keep the bearings clean using an appropriate solvent.
🔹 Regularly apply fresh oil or grease after cleaning.
🔹 Avoid exposure to harsh or wet conditions to prevent rust.
🔹 Use proper tools when installing or removing bearings.
🔹 Store bearings in a dry, cool environment to maintain their longevity.
Order Now – Get Your High Quality 12x21x5mm Miniature Ball Bearing for Engine Today!
Upgrade your engine with our high-performance High Quality 12x21x5mm Miniature Ball Bearing for Engine to experience smooth and efficient operation. Built for durability and precision, it’s the perfect choice for keeping your engine running at peak performance.









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