FAGI 6314 2RS C3 Deep Groove Ball Bearing
The FAGI 6314 2RS C3 is one of the most recognizable and widely used members of the heavy-duty industrial bearing family (the 63 series). With a 70mm bore diameter, this bearing is designed for thick shafts and high-power electric motors. Inside, polished steel balls glide within deep grooves, allowing the machine's shaft to rotate with minimal resistance and energy loss.
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Product Detail
Industrial Deep Groove Ball Bearing FAGI 6314 2RS C3 High-Speed Smooth Rotation, Heavy-Duty Load, Silent Operation
The ideal choice for high-power electric motors, gearboxes, industrial pumps, and production lines with C3 thermal clearance and dual-lip rubber seals.
What is the FAGI 6314 2RS C3 Bearing and its role in machinery?
In the world of industrial machinery and production lines, heavy rotating shafts run for hours at high speeds, carrying immense loads. Without a sturdy, friction-reducing component, these shafts would heat up due to friction within minutes, causing metal-on-metal welding and catastrophic machinery failure. The critical component that acts as the "saving grace" to prevent this is the Deep Groove Ball Bearing.
The FAGI 6314 2RS C3 is one of the most recognizable and widely used members of the heavy-duty industrial bearing family (the 63 series). With a 70mm bore diameter, this bearing is designed for thick shafts and high-power electric motors. Inside, polished steel balls glide within deep grooves, allowing the machine's shaft to rotate with minimal resistance and energy loss.
FAGI manufactures this bearing using hardened, wear-resistant steel. This makes the unit not only highly resistant to high-speed rotation but also incredibly durable against the mechanical shocks and variable loads that occur during motor startups or operational fluctuations, preventing sudden production stoppages.
Decoding the 6314 2RS C3 Part Number
At first glance, a code like "6314 2RS C3" might look like an arbitrary sequence, but it is actually a precise technical ID card. Understanding these segments helps you ensure you are ordering the exact part for your equipment:
- First Digit (6): Denotes the bearing type. "6" signifies a "Single Row Deep Groove Ball Bearing"—the most versatile, reliable, and common type, offering very low friction and high speed capability.
- Second Digit (3): Indicates the dimension series. Series "3" (compared to lighter series like 1 or 2) means the bearing has thicker rings, a robust body, and larger balls, designed specifically for heavy loads.
- Last Two Digits (14): Specifies the inner bore diameter. In global standards, once the number exceeds 04, you multiply by 5 to get the size in millimeters. 14 × 5 = 70 mm, the exact diameter of the shaft seat.
- Suffix 2RS (Sealed on both sides): Indicates rubber seals on both sides, reinforced with a metal core. These seals press against the inner ring to prevent dust, debris, and moisture from entering, while keeping internal grease contained.
- Suffix C3 (Internal Thermal Clearance): This indicates extra clearance. When cold, the balls have more room than a standard bearing. Why? Because when the machine runs and heats up, metal expands. This extra space prevents the bearing from tightening up and seizing, ensuring smooth operation even at high operating temperatures.
Technical Specifications and Dimensions of FAGI 6314 2RS C3
Precision is mandatory when replacing bearings. The geometric specifications are as follows:
- Inner Diameter (Bore): 70 mm
- Outer Diameter: 150 mm
- Width: 35 mm
- Groove Structure: Mirror-polished deep groove for vibration reduction
- Lubrication: Factory-filled with high-grade, long-life lithium-base grease
- Clearance Class: C3 (Radial clearance for hot running conditions)
Practical Tip: Before replacing, read the code on the old bearing or measure the shaft/housing with a caliper to confirm the 70×150×35 mm size.
Why is C3 Clearance Crucial?
Many users, upon handling a new C3 bearing, feel a slight play in the inner ring and wrongly assume the part is loose or defective. In reality, it is the exact opposite.
When industrial motors or pumps operate under load, they generate heat. Heat transfers through the shaft to the inner ring, causing the metal to expand. If a standard-clearance bearing were used, the expansion would crush the internal balls, skyrocketing friction and destroying the bearing within a short time. C3 clearance is engineered precisely to account for this thermal expansion. When the machine reaches normal operating temperature, the "excess" space is filled, allowing the balls to glide perfectly.
Key Advantages of FAGI 6314 2RS C3
Combined Load Handling
Deep grooves and reinforced edges allow the balls to absorb both direct radial loads and axial forces from belts or gears.
Superior Protection (2RS Seals)
Rubber seals provide a nearly impenetrable barrier against industrial dust, moisture, and abrasive particles.
Silent & Vibration-Free
Precision manufacturing processes at FAGI plants ensure the raceways are polished to a mirror finish, reducing noise and vibration.
Maintenance-Free
Pre-lubricated with high-grade grease for the bearing's entire service life; no need for constant re-greasing or inspection.
High Thermal Resilience
Thanks to C3 clearance, it maintains peak performance even in hot environments, preventing seizing during prolonged operation.
Efficiency & Power Savings
Low internal friction minimizes wasted energy, allowing motors to run with maximum efficiency and lower power consumption.
Common Applications
Given its robust structure and 70mm bore, this bearing is found in a wide variety of industrial machinery:
- Three-Phase Industrial Motors: Mid-to-heavy frame motors in manufacturing, mining, and steel plants.
- Industrial Gearboxes: Supports shafts to prevent gear misalignment.
- Centrifugal Pumps: Water transfer pumps where 2RS seals keep fluids out.
- Fans & Blowers: Large industrial ventilation systems requiring high-speed rotation.
- Construction & Agricultural Equipment: Compactors, harvesters, and crushers operating in dusty environments.
Signs of Wear: When to Replace?
Failure to replace a worn bearing can lead to expensive repairs or destroyed rotors. Watch for these warning signs:
- Whistling or Grinding Noise: A dry, scratching, or howling sound suggests lubricant failure or ball surface damage.
- Abnormal Heat: If the bearing housing is untouchably hot to the touch, internal friction has skyrocketed.
- Increased Vibration: A damaged ball or race will cause the entire motor or pump to shake visibly.
- Increased Amperage Draw: As the bearing becomes "stiff," the motor works harder, causing spikes in power consumption.
Installation Best Practices
Quality hardware is only half the battle; proper installation is the other. Follow these rules to avoid premature failure:
1. Never Hammer Directly
Hitting the bearing ring directly causes microscopic cracks or indentations on the balls. Always use a proper sleeve, pipe, or hydraulic press.
2. Apply Force Correctly
If mounting on a shaft, apply force only to the inner ring. If pressing into a housing, apply force only to the outer ring.
3. Use Induction Heating
The best way to mount a 70mm bearing is using an induction heater (approx. 100°C) to expand it gently. Never use open flames or torches; it softens the steel and melts the rubber seals.
4. Keep Seals Intact
Do not remove the 2RS seals. They are pre-packed with the correct amount of grease at the factory. Removing them risks contamination.
FAQ
1. What is the difference between 2RS and ZZ (metal) seals?
ZZ seals are metal shields, ideal for high-speed operation in clean environments. 2RS seals are rubber-lip, providing superior protection against moisture and dust, making them better for real-world industrial environments.
2. Can I use this for heavy shock loads?
The 63 series is robust, but for extreme shock loads (like rock crushers), spherical roller bearings are preferred. 6314 is excellent for steady or moderately fluctuating loads.
3. Is C3 clearance standard for motors?
Yes, C3 is the industry standard for electric motors, as thermal expansion during operation requires this extra space to prevent seizing.
4. Does it need grease refills?
No, 2RS bearings are maintenance-free. The factory-packed grease is designed to last the entire service life of the unit.
5. How do I verify authenticity?
Original FAGI products feature crisp laser etching, standardized sealed packaging, and ultra-smooth rotation. Buy from trusted suppliers like KGICO to guarantee authenticity.
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