DKFL 88107 2RS
The DKFL 88107 2RS utilizes precision-hardened steel balls and contact rubber seals (2RS), ensuring the internal grease remains secure while effectively blocking dust, debris, and contaminants from entering the raceway. DKFL’s strict quality control, utilizing chrome steel (GCr15/100Cr6) and superior raceway polishing, guarantees smooth rotation and an extended service life.
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Product Detail
Deep Groove Ball Bearing DKFL 88107 2RSOptimized for radial loads, reliable speed, and dual rubber sealing in industrial & agricultural settings
A durable and precise choice for industrial machinery, agricultural equipment, and rotating shafts, featuring an extended inner ring and complete protection against dust and moisture.
Introduction to the DKFL 88107 2RS Deep Groove Ball Bearing
The 88000 series, specifically the 88107 model, belongs to the category of specialized single-row deep groove ball bearings designed with an Extended Inner Ring. These bearings are highly valued in industrial machinery, agricultural equipment, electric motors, and conveyors due to their high shaft stability, low friction, and ability to handle balanced radial and axial loads.
The DKFL 88107 2RS utilizes precision-hardened steel balls and contact rubber seals (2RS), ensuring the internal grease remains secure while effectively blocking dust, debris, and contaminants from entering the raceway. DKFL’s strict quality control, utilizing chrome steel (GCr15/100Cr6) and superior raceway polishing, guarantees smooth rotation and an extended service life.
A standout feature of this model is that it is maintenance-free upon installation, with the extended inner ring providing stable assembly that prevents radial play or shaft deflection under vibration.
Understanding the 88107 2RS Technical Code
The nomenclature provides insight into the bearing's design and features:
88107: Denotes the series for agricultural/specialized industrial deep groove ball bearings. The final digits "07" indicate a 35 mm inner bore diameter (7 × 5 = 35).
2RS: Indicates the presence of two reinforced rubber seals (Rubber Seals) on both sides of the bearing. These seals prevent grease leakage and provide superior resistance to water splashes and dust.
DKFL Brand: Represents authenticity and build quality based on engineering standards for dimensional accuracy and structural rigidity.
Standard Dimensions & Specifications
Before ordering, please match these dimensions with your shaft and housing:
- Inner Diameter (d): 35 mm (1.378")
- Outer Diameter (D): 72 mm (2.835")
- Inner Ring Width: 25 mm (0.984")
- Outer Ring Width (C): 17 mm (0.669")
Technical Note: The inner ring width of the 88107 is 25 mm, while the outer ring maintains a standard 17 mm width, allowing for precise shaft placement without the need for additional side spacers.
Features and Benefits of the DKFL 88107 2RS
Excellent 2RS Sealing
Nitrile rubber seals prevent moisture, dust, and fine particles from reaching the rolling elements, preventing premature wear.
Factory Pre-lubricated
The bearing is packed with high-quality grease during production, requiring no initial lubrication during installation.
Extended Inner Ring Stability
The wider contact surface on the 35mm inner ring prevents angular deflection and vibration in oscillating loads.
DKFL Material Quality
Manufactured with high-carbon chrome steel, ensuring uniform heat treatment and dimensional tolerance for quiet operation.
Combined Load Capacity
Deep groove design handles radial and axial loads in both directions with low friction and minimal heat generation.
Industrial Versatility
An ideal engineered replacement for equivalent codes such as 207RR3, JD9301, and various machinery parts.
Common Applications
Due to its robust construction and strong contact seal, this bearing is used in various industrial and mechanized sectors:
- Agricultural Machinery: Combines, balers, discs, and harvesters operating in dusty and debris-heavy environments.
- Conveyor Systems: Idlers and tension rollers with 35mm shaft diameters.
- Electric Motors & Pumps: Industrial pumps and gearboxes requiring durable, sealed bearings.
- Food Processing: Machinery requiring smooth operation without grease leakage.
- Rotating Shafts: Any application with 35mm seating requiring the stability of a wide inner ring.
Buying Guide
To ensure a correct purchase and avoid incompatibility, check the following:
- Verify Inner Ring Width: Ensure the 25mm width is what your application requires, as this differs from standard 6207 bearings (17mm).
- Seal Choice: The 2RS suffix is essential for dusty environments. Do not use open or ZZ (metal shield) types where liquid/dust protection is needed.
- Interchangeability: Compare with equipment catalog codes like 207RR3, JD9301, or BCA 88107A.
- DKFL Authenticity: Inspect packaging, laser markings on the outer ring, and seal integrity upon delivery.
Installation Tips
Proper installation is critical for bearing longevity. Follow these steps:
1) Cleanliness and Inspection
The 35mm shaft must be free of burrs, corrosion, or sharp edges. Ensure fitting tolerances match equipment specs.
2) Apply Force Correctly
When mounting, apply force using a sleeve directly against the inner ring. Never strike the outer ring or balls directly.
3) Protect the 2RS Seals
During assembly, ensure your tools do not deform the rubber seals, as damage compromises protection.
4) Avoid Over-Greasing
The bearing is pre-lubricated. Adding extra grease can increase internal friction and operating temperature.
Maintenance & Monitoring
- Monitor Temperature: Unusual heat spikes may indicate overload or installation issues.
- Check Noise: Listen for grinding or clicking, which indicates potential fatigue.
- Seal Integrity: Ensure seals do not rub against external stationary components.
- Check for Leakage: Discolored grease leaking from the seal edges suggests it is time for replacement.
Signs of Needed Replacement
If any of the following occur, service or replacement is likely required:
- Excessive vibration beyond standard levels
- Rough or uneven rotation (binding)
- Unusual grinding or screeching noise
- Physical damage to the rubber seals
- Excessive radial or axial play
Frequently Asked Questions
1) What are the exact dimensions of the 88107?
It has a 35mm inner diameter, 72mm outer diameter, and a 25mm inner ring width (17mm outer ring width).
2) How does it differ from a standard 6207 bearing?
Both share 35x72mm dimensions, but the 88107 has an extended 25mm inner ring for better shaft stability.
3) What does "2RS" mean?
It stands for two contact rubber seals that prevent contamination ingress and grease leakage.
4) Does it require initial grease?
No, it is factory pre-lubricated and ready to install.
5) Are there equivalent codes?
Yes, it is often interchangeable with 207RR3, JD9301, BCA 88107, and 88107A.
Conclusion
The DKFL 88107 2RS Deep Groove Ball Bearing offers the perfect combination of structural resilience, stability via its extended inner ring, and superior protection with its 2RS seals. DKFL quality ensures your machinery operates with minimal noise, low heat, and maximum service life.
Always verify your shaft size (35mm), inner ring width, and sealing requirements against your equipment's manual before ordering.
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