KYK 6907-2RS-SRI2 Bearing Nos

( Brand: Kyk ), ( Manufacturer Part Number: 6907-2RS-SRI2 ), ( Part Type: Bearing )

Review KYK Bearing Nos

The **KYK 6907-2RS-SRI2** is a high-performance, precision-engineered cylindrical roller bearing designed for demanding industrial applications where reliability, durability, and minimal maintenance are critical. This bearing belongs to the **6900 series**, a robust line of single-row cylindrical roller bearings with a cage (retainer) that ensures smooth operation and optimal load distribution. The **6907** designation indicates a specific bore size of **35 mm (1.378 inches)**, making it suitable for medium to large shafts in machinery where space efficiency and load-bearing capacity are essential. The **2RS** suffix denotes a **double-row shielded configuration**, featuring two metal shields on either side of the bearing one on each raceway to protect internal components from contaminants like dust, dirt, and moisture while allowing for a limited degree of lubricant retention. This shielding enhances the bearing s longevity in harsh environments, reducing the risk of premature wear or failure due to external debris.

The **SRI2** designation signifies a specialized cage design, likely a **stamped steel or brass cage with a two-piece construction**, which optimizes internal clearance and minimizes friction between rollers and cage, thereby improving efficiency and extending operational life. This cage type is particularly effective in high-speed applications, as it reduces centrifugal forces and maintains consistent roller spacing even under heavy loads. The bearing s **cylindrical roller arrangement** provides exceptional axial and radial load-carrying capacity, making it ideal for applications such as conveyor systems, agricultural machinery, mining equipment, and heavy-duty industrial conveyors where both radial and axial forces are present. Its robust construction also accommodates misalignment to some degree, which is advantageous in systems where shaft deflection or mounting inaccuracies may occur.

Manufactured to stringent quality standards, the **KYK 6907-2RS-SRI2** is designed for seamless integration into existing machinery, offering a balance of performance and cost-effectiveness. The bearing s **high-quality steel components**, including hardened and ground raceways, ensure precise dimensional accuracy and superior fatigue resistance, even under cyclic loading conditions. Additionally, its **low-friction design** contributes to energy efficiency, reducing operational costs over time. Whether used in continuous production lines, material handling systems, or other high-demand applications, this bearing delivers consistent performance with minimal downtime, making it a dependable choice for engineers and maintenance teams seeking long-term reliability. Proper lubrication and regular inspection are recommended to maximize its operational lifespan, but its robust shielding and cage design significantly reduce the need for frequent maintenance interventions.

### **Pros and Cons of buying a Kyk 6907-2RS-SRI2 Bearing (Single Row Deep Groove Ball Bearing)**

1. **High Quality and Durability** The Kyk brand is known for producing reliable industrial bearings with precise manufacturing standards. This model is designed for heavy-duty applications, ensuring long service life under normal operating conditions.

2. **Standardized Dimensions** The 6907 designation follows the ABEC-1 (ANSI) standard, making it compatible with a wide range of machinery, including electric motors, pumps, conveyors, and agricultural equipment. This ensures easy replacement and interchangeability.

3. **Low Friction and Smooth Operation** Deep groove ball bearings are optimized for radial and axial loads, providing smooth rotation with minimal friction. This reduces energy consumption and wear on connected components.

4. **Cost-Effective for Mass Production** While not the cheapest bearing on the market, it offers a good balance between price and performance, making it suitable for industrial applications where reliability is critical.

5. **Wide Availability** As a common bearing size, it is readily available from distributors, online retailers, and industrial suppliers, reducing lead times for replacements.

6. **Sealed Construction (2RS)** The double-shielded (2RS) design prevents contamination from dust, moisture, and debris, extending bearing life in moderate environmental conditions. However, for extreme environments, additional sealing (e.g., rubber lips) may be needed.

7. **Compatibility with Standard Shafts** The bore size (35mm) fits common shaft diameters, allowing for easy installation without requiring custom machining.

8. **Good Load-Carrying Capacity** Deep groove ball bearings are well-suited for radial loads and moderate axial loads, making them versatile for various applications.

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1. **Limited Axial Load Capacity** While it handles radial loads well, its axial load capacity is lower compared to specialized bearings like cylindrical roller bearings or thrust bearings. Overloading in the axial direction can lead to premature failure.

2. **Sensitivity to Misalignment** Deep groove ball bearings are not as tolerant of shaft misalignment as tapered roller bearings. Excessive misalignment can cause uneven stress, increasing wear and reducing lifespan.

3. **Not for High-Speed Heavy Loads** While suitable for moderate speeds, this bearing may not perform optimally in high-speed applications with heavy radial loads, where cage design and heat dissipation become critical factors.

4. **Maintenance Requirements** Although sealed, the 2RS shields can wear over time, requiring periodic inspection and lubrication (if not pre-lubricated). Contaminated environments may necessitate more frequent maintenance.

5. **Potential for Cage Failure** The cage (retainer) can fail under extreme conditions, leading to bearing damage. This is more common in high-speed or high-temperature applications.

6. **Limited Temperature Range** Standard deep groove ball bearings have operating temperature limits (typically -30 C to 120 C). For high-temperature applications, specialized high-temperature bearings (e.g., with ceramic balls or high-temperature grease) may be required.

7. **Noise and Vibration** In some cases, improper installation or contamination can lead to increased noise and vibration, which may require additional damping measures.

8. **Brand-Specific Considerations** While Kyk is a reputable brand, quality can vary by supplier. Always verify the supplier s reputation and certifications to ensure authenticity and compliance with industry standards.

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The **Kyk 6907-2RS-SRI2 bearing** is a robust, versatile, and cost-effective choice for applications requiring reliable radial load support in moderate environments. Its standardized dimensions, low friction, and ease of installation make it a practical option for industrial machinery, electric motors, and conveyors. However, its limitations in axial load capacity, sensitivity to misalignment, and maintenance needs must be carefully considered.

- Proper installation (correct shaft fit, alignment, and preload if required).

- Regular inspection and lubrication (if not pre-lubricated).

- Compatibility with the application s load, speed, and environmental conditions.

- Use of high-quality grease or oil suitable for the operating temperature.

If the application involves **high axial loads, extreme misalignment, or high temperatures**, consider alternative bearing types (e.g., tapered roller bearings, angular contact bearings, or ceramic ball bearings).

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- You need a **standardized, cost-effective solution** for radial loads in moderate environments.

- Your application involves **electric motors, pumps, conveyors, or light machinery** where deep groove ball bearings are commonly used.

- You can ensure **proper installation, lubrication, and maintenance** to maximize its lifespan.

- Your application requires **high axial loads** (opt for angular contact or tapered roller bearings).

- The shaft has **significant misalignment** (use tapered roller or spherical roller bearings).

- Operating conditions include **extreme temperatures or heavy contamination** (choose sealed or high-temperature bearings).

- You need **ultra-high precision or low noise** (consider ABEC-5 or ABEC-7 bearings).

For most general industrial uses, this bearing provides an excellent balance of performance and affordability. Always cross-reference with your specific application requirements before purchasing.

Details:

All parts are in stock and ready to ship. Pictures: Thumbnails. If the original package is included it may show signs of wear. KYK 6907-2RS-SRI2 Bearing NOS.

Items are shipped using USPS, UPS, and FedEx. Bearing is new and in excellent condition, original packaging.

part #: 69072rssri2 price

• $12.74

specifications bearingmotorcycleiz:

• brand: Kyk
• mpn: 6907-2rs-sri2
• part type: Bearing

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• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Engine Bearings
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