Double Row Cylindrical Roller Bearings – Full Compliment

Double Row Cylindrical Roller Bearings – Full Compliment

Core Features

  • Extreme Radial Load Capacity: By utilizing two rows of rollers and eliminating the cage, these bearings offer the highest possible radial load carrying capacity within a given cross-section.
  • Maximum Rigidity: The high density of rollers provides exceptional system stiffness, making them ideal for precision applications under heavy stress.
  • Bi-Directional Axial Location: Many double row full complement designs (such as the NNC or NNF series) feature integral ribs that allow the bearing to locate the shaft axially in both directions.
  • Integrated Sealing Options: Frequently available with built-in contact seals (NNF series) to protect against contamination and retain lubricant in harsh environments.
  • Relubrication Features: The outer ring typically includes a lubrication groove and holes to ensure both rows of rollers receive consistent grease or oil flow.

At Kriloha Ltd., we understand that “Industrial-Scale” challenges require uncompromising mechanical support. Our Double Row Full Complement Cylindrical Roller Bearings are our engineered answer for “Ultimate-Load-Density” and “Structural-Invincibility.” As a premier provider of industrial components, Kriloha has developed a double-row series that balances mechanical invincibility with the operational agility required for the world’s heaviest lifting and rotating tasks.

The engineering of our double-row series is based on Maximum Rolling Element Utilization. By removing the cage and adding a second row of rollers, we effectively double the contact points, distributing stress across a wider surface area. At Kriloha, we verify that our rollers are matched in diameter to sub-micron levels to ensure perfectly balanced load sharing between the two rows. This creates a “Rigid-Resilient” support system that maintains absolute shaft stability even under fluctuating or shock-load conditions.

Manufacturing these bearings involves strict Boundary-Dimension Calibration. We ensure that despite the increased roller count, the bearing maintains a compact profile for easy integration into existing housings. Whether you are overhauling a critical offshore winch or a high-capacity crane sheave, Kriloha Double Row Full Complement Bearings provide the mechanical durability your facility demands. By choosing Kriloha Ltd., you are investing in a “High-Torque” technology that secures your most mission-critical rotating assets.

Bearing Table

SR. NO. BEARING NO. BOUNDARY DIMENSIONS (in mm) MASS
(~ Kg.)
d D B C
1 F-210408 22.000 38.750 22.500 0.105
2 F-208098 35.000 52.100 26.500 0.190
3 F-208099 40.000 57.800 34.000 0.290
4 SL04 5008N/NNF 5008 ADA-2LSV 40.000 68.000 38.000 37.000 0.500
5 50x59x40 50.000 0.000 40.000 0.140
6 SL04 5010N/NNF 5010 ADA-2LSV 50.000 80.000 40.000 39.000 0.690
7 SL04 5013N/NNF 5013 ADA-2LSV 65.000 100.000 46.000 45.000 1.210
8 SL04 5014N/NNF 5014 ADA-2LSV 70.000 110.000 54.000 53.000 1.810
9 SL04 5016N/NNF 5016 ADA-2LSV 80.000 125.000 60.000 58.700 2.600

Primary Use Cases

  • Rope Sheaves & Hoists: The standard choice for crane sheaves where high radial loads and tilting moments are present.
  • Heavy-Duty Winches: Managing the extreme tension and cable loads in marine and construction winching systems.
  • Gearbox Output Shafts: Supporting high-torque shafts in industrial machinery where space is limited but load requirements are immense.
  • Excavator Pivot Points: Providing the structural integrity needed for the high-impact joints of earthmoving equipment.
  • Steel Mill Rollers: Handling the continuous heavy pressure and high temperatures of metal forming processes.

Frequently Asked Questions

Frequently Asked Questions (FAQs)
1. Why use a double row instead of a single row full complement bearing?
A double row bearing significantly increases the load rating and provides better resistance to tilting moments, which is crucial in applications like rope sheaves.
2. Are these bearings suitable for high-speed rotation?
No. Like all full complement designs, the roller-to-roller friction limits these bearings to slow and moderate speeds. They are designed for “Power” rather than “Velocity.”
3. What does “NNF” or “NNC” mean in the part number?
These are standard design codes: NNF usually refers to a sealed bearing with a double inner ring, while NNC refers to an open bearing with a double outer ring. Kriloha provides both configurations based on your housing needs.
4. Can these bearings be used in outdoor environments?
Yes, especially the sealed (NNF) variants. Kriloha’s sealed double row bearings are pre-lubricated and designed to resist water and dust ingress in outdoor lifting applications.
5. How do I handle the assembly of a double row bearing with a split ring?
Many double row designs use a split inner or outer ring held together by a retaining ring. It is vital to keep these matched components together during installation to maintain the factory-set internal clearance.

This is the heading

Lorem ipsum dolor sit amet consectetur adipiscing elit dolor

Request a Quote

Enter your details here

Great! We’ve received your information.

We couldn’t process your submission. Please retry

Scroll to Top

Get a Quote

Great! We’ve received your information.

We couldn’t process your submission. Please retry