NNCF 4838 CV 290x240x50 Bearing
Double Row Full Complement Cylindrical Roller Bearing
The NNCF 4838 CV Double Row Full Complement Cylindrical Roller Bearing is designed for high radial load applications where space and reliability are critical. With its full complement design, this bearing offers maximum load capacity without a cage, making it ideal for heavy-duty industrial applications. Its robust construction ensures high performance under demanding conditions, including mining equipment, steel mills, and power generation. The bearing’s ability to handle high radial loads and low speeds makes it suitable for a wide range of heavy machinery, while its enhanced durability ensures a long service life even in harsh environments.
Performance Overview of the NNCF 4838 CV Bearings
| Specifications | Details |
|---|---|
| Brand | AMIGO NNCF 4838 CV | Interchangeable With: SKF NNCF 4838 CV |
| Bore diameter | 190 mm |
| Outside diameter | 240 mm |
| Width | 50 mm |
| Basic dynamic load rating | 358 kN |
| Basic static load rating | 750 kN |
| Reference speed | 1100 r/min |
| Limiting speed | 1400 r/min |
| Bearing part | Complete bearing |
| Axial displacement capability | In one direction |
| Number of rows | 2 |
| Locating feature, bearing outer ring | None |
| Bore type | Cylindrical |
| Cage | Without |
| Number of flanges, outer ring | 1 |
| Number of flanges, inner ring | 3 |
| Loose flange | None |
| Radial internal clearance | CN |
| Tolerance class | Normal |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication feature | With |
| Dimensions(mm) | 190 x 240 x 50 |
| Specifications | Details |
|---|---|
| Brand | AMIGO NNCF 4838 CV | Interchangeable With: SKF NNCF 4838 CV |
| Bore diameter | 7.48 in |
| Outside diameter | 9.449 in |
| Width | 1.969 in |
| Basic dynamic load rating | 80,482 lbf |
| Basic static load rating | 168,607 lbf |
| Reference speed | 1100 r/min |
| Limiting speed | 1400 r/min |
| Bearing part | Complete bearing |
| Axial displacement capability | In one direction |
| Number of rows | 2 |
| Locating feature, bearing outer ring | None |
| Bore type | Cylindrical |
| Cage | Without |
| Number of flanges, outer ring | 1 |
| Number of flanges, inner ring | 3 |
| Loose flange | None |
| Radial internal clearance | CN |
| Tolerance class | Normal |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication feature | With |
| Dimensions(in) | 7.48 x 9.449 x 1.969 |
Specifications Overview of the NNCF 4838 CV Bearings
| Specifications | Details |
|---|---|
| Bore diameter | 190 mm |
| Outside diameter | 240 mm |
| Width | 50 mm |
| Shoulder diameter inner ring | ≈ 209 mm |
| Shoulder diameter outer ring | ≈ 219 mm |
| Width annular lubrication groove outer ring | 7 mm |
| Diameter lubrication hole (outer ring) | 4 mm |
| Permissible axial displacement | max. 4 mm |
| Chamfer dimension (open bearings) | min. 1.5 mm |
| Chamfer dimension | min. 1.5 mm |
| Abutment diameter shaft | min. 197 mm |
| Abutment diameter shaft (min) | 203 mm |
| Abutment diameter housing | max. 233 mm |
| Fillet radius | max. 1.5 mm |
| Fillet radius (max) | max. 1.5 mm |
| Specifications | Details |
|---|---|
| Bore diameter | 7.48 in |
| Outside diameter | 9.449 in |
| Width | 1.969 in |
| Shoulder diameter inner ring | ≈ 8.228 in |
| Shoulder diameter outer ring | ≈ 8.622 in |
| Width annular lubrication groove outer ring | 0.276 in |
| Diameter lubrication hole (outer ring) | 0.157 in |
| Permissible axial displacement | max. 0.157 in |
| Chamfer dimension (open bearings) | min. 0.059 in |
| Chamfer dimension | min. 0.059 in |
| Abutment diameter shaft | min. 7.756 in |
| Abutment diameter shaft (min) | 7.992 in |
| Abutment diameter housing | max. 9.173 in |
| Fillet radius | max. 0.059 in |
| Fillet radius (max) | max. 0.059 in |
Applicable Machines and Industries
1. Steel Rolling Mills
- Role: Supports heavy rollers in steel mills, providing stability under high radial loads to ensure smooth and efficient rolling operations.
- Replaceable Bearing Brands/Series: Amigo NNCF 4838 CV, SKF NNCF 4838 CV, INA SL18 4838, Libe MRCF 4838
2. Wind Turbine Gearboxes
- Role: Facilitates load transmission and stability in wind turbine gearboxes, ensuring durability under high loads and low-speed rotation.
- Replaceable Bearing Brands/Series: SKF NNCF 4838 CV, INA SL18 4838, Amigo NNCF 4838 CV
3. Mining Equipment
- Role: Carries heavy radial loads in mining conveyor systems and crushers, ensuring long service life under harsh conditions.
- Replaceable Bearing Brands/Series: Amigo NNCF 4838 CV, Libe MRCF 4838, SKF NNCF 4838 CV
4. Paper Mill Machinery
- Role: Provides smooth operation of paper mill presses and rollers, handling continuous high radial loads for paper production processes.
- Replaceable Bearing Brands/Series: Amigo NNCF 4838 CV, INA SL18 4838, SKF NNCF 4838 CV
5. Cement Kiln Drives
- Role: Provides stability and high load capacity in cement kiln drives, ensuring continuous operation and reliability.
- Replaceable Bearing Brands/Series: Amigo NNCF 4838 CV, SKF NNCF 4838 CV, INA SL18 4838
6. Industrial Gearboxes
- Role: Ensures load-bearing capacity in various industrial gearboxes, improving durability and reliability under heavy loads.
- Replaceable Bearing Brands/Series: Amigo NNCF 4838 CV, Libe MRCF 4838, SKF NNCF 4838 CV
NNCF 4838 CV Bearing Cross Reference and Interchange
| Brand | Bearing Model |
|---|---|
| Amigo | NNCF 4838 CV |
| SKF | NNCF 4838 CV |
| INA | SL18 4838 |
| Libe | MRCF 4838 |
NNCF 4838 CV Bearing 3D Model
This table summarizes the bearing cross-reference and interchange guide for the NNCF 4838 CV Double Row Full Complement Cylindrical Roller Bearings. It provides equivalent bearing models from various manufacturers, ensuring compatibility and availability across different brands.
Choosing the Right Bearing
When comparing the Amigo NNCF 4838 CV bearing to other similar models, several key advantages make it the superior choice for various applications:
When to Choose Amigo NNCF 4838 CV?
- High Load Applications: Choose this bearing when your machinery needs to support heavy radial loads (up to 358 kN).
- High-Speed Operations: Ideal for equipment that requires operation at speeds up to 1400 r/min.
- Relubrication Needs: Best suited for systems that need relubrication for longevity and better performance.
- Wide Temperature Range: Choose it for applications that operate in extreme temperatures from -30°C to 120°C.
- Compact Design: Ideal when a full complement bearing is required for maximum load capacity in limited space.
Amigo NNCF 4838 CV provides a high load capacity similar to SKF at a competitive price. Its full complement design maximizes durability, and the wide operating temperature range ensures reliable performance even under challenging conditions. This bearing is ideal for various heavy-duty applications while offering cost-effective solutions.
| Feature | Amigo NNCF 4838 CV | SKF NNCF 4838 CV | INA SL18 4838 | Libe MRCF 4838 |
|---|---|---|---|---|
| Load Capacity | High (358 kN) | High (358 kN) | Medium (350 kN) | Low (340 kN) |
| Speed Rating | 1400 r/min | 1400 r/min | 1300 r/min | 1200 r/min |
| Lubrication Feature | Relubrication feature | Relubrication feature | Relubrication option | Standard |
| Temperature Range | -30°C to 120°C | -30°C to 120°C | -25°C to 100°C | -20°C to 80°C |
| Design | Full Complement | Full Complement | Cage Design | Cage Design |
| Sealing Option | Without | Without | Optional | None |
| Misalignment Tolerance | Moderate | Moderate | Low | Low |
| Inner Ring Diameter | 190 mm | 190 mm | 190 mm | 190 mm |
| Outer Ring Diameter | 240 mm | 240 mm | 240 mm | 240 mm |
| Number of Rows | 2 | 2 | 2 | 2 |
Recommended Products for Optimal Performance
Enhance your bearing operations with these related products:
Product
Loctite 638 Bearing Fit Adhesive
Description
A high-strength, high-viscosity adhesive used for securing bearings in place, preventing movement and wear under heavy loads. Ideal for NNCF 4838 CV installations.
Product
FAG Arcanol Grease Series
Description
High-quality, multi-purpose grease specifically formulated for roller bearings, ensuring long-lasting performance and reduced wear in tough environments.
Product
Timken Installation Tool Kit
Description
A comprehensive kit that includes various tools for the precise installation of bearings, reducing the risk of bearing damage during mounting.
Why Amigo NNCF 4838 CV Bearings Are the Top Choice
I’ve been using the Amigo NNCF 4838 CV bearings in our steel mill, and they perform just as well as the SKF bearings we’ve used before. The load capacity is excellent, and the durability has been impressive, even under heavy-duty conditions.
Isabella Calloway
We replaced our previous bearings with Amigo NNCF 4838 CV, and I must say they feel almost identical to INA bearings in terms of performance and load handling. The installation was smooth, and they’ve been running flawlessly.
Charlotte Ainsley
The Amigo NNCF 4838 CV bearing is a game-changer for our wind turbine applications. It’s robust, reliable, and honestly, performs just like the SKF model we used previously. I’m thrilled with the switch.
Amelia Redmond
I installed Amigo NNCF 4838 CV in our mining equipment, and they’ve held up extremely well. The performance feels nearly identical to INA bearings, but at a much more affordable price. Great quality and value!
Ethan Whitford
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