NJ307 35x80x21 Bearing
Single Row Cylindrical Roller Bearing
The NJ307 Single Row Cylindrical Roller Bearing is a high-performance component designed to meet the rigorous demands of various industrial applications. With dimensions typically including a bore diameter of 35 mm, an outer diameter of 80 mm, and a width of 21 mm, the NJ307 bearing is well-suited for machinery that requires the handling of high radial loads along with moderate axial loads in one direction.This bearing features a single row of cylindrical rollers, which provides a larger contact area with the raceways compared to conventional ball bearings.
Performance Overview of the NJ307 Bearings
| Category | Specification |
|---|---|
| Brand | AMIGO NJ307 Interchangeable With:SKF NJ307 |
| Bore Diameter | 35 mm |
| Outside Diameter | 80 mm |
| Width | 21 mm |
| Basic Dynamic Load Rating | 75 kN |
| Basic Static Load Rating | 63 kN |
| Reference Speed | 9,500 r/min |
| Limiting Speed | 11,000 r/min |
| Bearing Part | Complete bearing |
| Axial Displacement Capability | In one direction |
| Number of Rows | 1 |
| Locating Feature, Bearing Outer Ring | None |
| Bore Type | Cylindrical |
| Cage | Non-metallic |
| Number of Flanges, Outer Ring | 2 |
| Number of Flanges, Inner Ring | 1 |
| Loose Flange | None |
| Radial Internal Clearance | CN |
| Tolerance Class | Normal |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication Feature | Without |
| Product Net Weight | 0.494 kg |
| Dimensions(mm) | 35x80x21 |
| Category | Specification |
|---|---|
| Brand | AMIGO NJ307 Interchangeable With:SKF NJ307 |
| Bore Diameter | 1.378 in |
| Outside Diameter | 3.15 in |
| Width | 0.827 in |
| Basic Dynamic Load Rating | 16,861 lbf |
| Basic Static Load Rating | 14,163 lbf |
| Reference Speed | 9,500 r/min |
| Limiting Speed | 11,000 r/min |
| Bearing Part | Complete bearing |
| Axial Displacement Capability | In one direction |
| Number of Rows | 1 |
| Locating Feature, Bearing Outer Ring | None |
| Bore Type | Cylindrical |
| Cage | Non-metallic |
| Number of Flanges, Outer Ring | 2 |
| Number of Flanges, Inner Ring | 1 |
| Loose Flange | None |
| Radial Internal Clearance | CN |
| Tolerance Class | Normal |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication Feature | Without |
| Product Net Weight | 1.089 lb |
| Dimensions(in) | 1.378x3.15x0.827 |
Specifications Overview of the NJ307 Bearings
| Specification | Details |
|---|---|
| Bore Diameter | 35 mm |
| Outside Diameter | 80 mm |
| Width | 21 mm |
| Basic Dynamic Load Rating | 75 kN |
| Basic Static Load Rating | 63 kN |
| Reference Speed | 9,500 r/min |
| Limiting Speed | 11,000 r/min |
| Product Net Weight | 0.494 kg |
| Number of Rows | 1 |
| Number of Flanges, Outer Ring | 2 |
| Number of Flanges, Inner Ring | 1 |
| Specification | Details |
|---|---|
| Bore Diameter | 1.378 in |
| Outside Diameter | 3.15 in |
| Width | 0.827 in |
| Basic Dynamic Load Rating | 16,861 lbf |
| Basic Static Load Rating | 14,163 lbf |
| Reference Speed | 9,500 r/min |
| Limiting Speed | 11,000 r/min |
| Product Net Weight | 1.089 lb |
Applicable Machines and Industries
The NJ307 Single Row Cylindrical Roller Bearings are versatile components used in a wide variety of industrial equipment. These bearings are most recommended for applications that require both high radial load capacity and moderate axial load handling in one direction.
1.Gearboxes
- Function: Gearboxes’ NJ307 bearings support the gears’ carrier shafts thereby bearing the radial loads from revolving gears. They also provide axial load support ensuring that gearboxes work without any hitches.
- Common Brands: These include SEW-Eurodrive, Flender (Siemens), Bonfiglioli, Sumitomo, NORD Drivesystems.
2.Electric Motors
- Function: In electric motors, NJ307 bearings bear the rotor shaft to ensure smooth rotation and bear the radial forces produced during operation. This is crucial for preserving motor efficiency and prolonging its service life.
- Common Brands: ABB, Siemens, WEG, Toshiba, Baldor.
3.Pumps
- Function: NJ307 bearings also find usage in pumps such as hydrodynamic centrifugal pumps which help by supporting rotating shafts. The bearings handle both axial and radial loads thus maintaining proper alignment and efficient performance of a pump.
- Common Brands: Grundfos, KSB, Sulzer, Flowserve, ITT Goulds Pumps.
4.Conveyor Systems
- Function: Conveyor systems use NJ307 bearings on rollers and drives to carry loads radially while allowing for smooth rotation for materials transport along the conveyor.
- Common Brands: Dematic,FlexLink,Rexnord ,Interroll,Dorner
5.Machine Tools
- Function: Machine tools like lathes,milling machines,and grinders have spindles containingNJ307bearings which provide guidance to them.They make precise functioning possible by supporting spindle under load so as to guarantee accuracy in machining processes.
- Common Brands: Haas ,DMG Mori ,Mazak ,Okuma,Makino
6.Compressors
- Compressors These compressors use NJ307 bearingsto supportthe crankshaft or rotor. These bearings handle the radial and axial loads in compression, therefore ensuring that the compressor operates stably at high efficiency.
- Common Brands: Atlas Copco, Ingersoll Rand, Kaeser, Sullair, Quincy.
NJ307 Bearing Cross Reference and Interchange
| Brand | Part Number |
|---|---|
| Amigo | NJ307 |
| SKF | NJ307 ECP |
| NTN | NJ307 |
| FAG | NJ307-E-M1 |
| NSK | NJ307 |
| Timken | NJ307 |
The NJ307 bearing’s compatibility across multiple brands ensures flexibility in sourcing and replacement, making it a reliable and convenient choice for various industrial needs.
Choosing the Right Bearing
Here’s a product comparison module for the NJ307 bearing, including a comparison table and an explanation of its advantages:
Why Choose Amigo NJ307 Bearing
- Cost-Effectiveness: It has a competitive price with good quality. If you are considering cost but do not want to compromise on performance, this is the perfect choice.
- High Performance: The Amigo NJ307 can meet the specifications of such other top-notch brands as SKF and FAG, hence guaranteeing effective operation in high speed and load conditions.
- Durability: Made from first-class material, the Amigo NJ307 is, therefore, useful for longer periods without needing frequent replacement.
- Versatility: The NJ307 bearing is particularly well-suited for applications with high radial loads and some axial loading in one direction. This makes it a reliable option for gearboxes, electric motors, and other heavy machinery.
- Price Advantage: At a more reasonable price than that of renowned brands such as SKF or FAG, Amigo NJ307 bears the same reliability status and offers similar levels of performance, which makes it quite appealing to budget-conscious clients.
This comparison helps users to make informed decisions by highlighting the specific advantages of the Amigo NJ307 bearing over other similar models.
| Feature | Amigo NJ307 | SKF NJ307 ECP | NTN NJ307 | FAG NJ307-E-M1 | NSK NJ307 |
|---|---|---|---|---|---|
| Type | Cylindrical Roller Bearing | Cylindrical Roller Bearing | Cylindrical Roller Bearing | Cylindrical Roller Bearing | Cylindrical Roller Bearing |
| Bore Diameter | 35 mm | 35 mm | 35 mm | 35 mm | 35 mm |
| Outside Diameter | 80 mm | 80 mm | 80 mm | 80 mm | 80 mm |
| Width | 21 mm | 21 mm | 21 mm | 21 mm | 21 mm |
| Cage Material | Non-metallic | Steel | Steel | Brass | Steel |
| Dynamic Load Rating | 75 kN | 74 kN | 73.5 kN | 74.5 kN | 74 kN |
| Static Load Rating | 63 kN | 62 kN | 61.5 kN | 62.5 kN | 62 kN |
| Limiting Speed | 11,000 r/min | 10,500 r/min | 10,000 r/min | 10,500 r/min | 10,000 r/min |
| Reference Speed | 9,500 r/min | 9,000 r/min | 8,500 r/min | 9,000 r/min | 8,500 r/min |
| Price Range | Competitive | Premium | Competitive | Premium | Competitive |
| Warranty | 1 Year | 1 Year | 1 Year | 1 Year | 1 Year |
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Why Amigo NJ307 Bearings Are the Top Choice
I’ve been using the Amigo NJ307 bearing in our heavy-duty gearboxes, and I must say it performs just as well as the SKF NJ307 ECP we used before. The installation was smooth, and the bearing handles high loads without any issues. The best part is the cost savings with Amigo without compromising on quality. It’s definitely a great alternative to the more expensive brands.
James L.
We recently switched to the Amigo NJ307 bearings for our electric motors, and the results have been impressive. The performance is nearly identical to the FAG NJ307-E-M1 we previously used. The bearings run quietly and smoothly, even under high-speed conditions. Amigo has delivered excellent value, matching the reliability and performance of premium brands.
Anna P.
After switching to the Amigo NJ307 bearing for our pumps, I’ve noticed no difference in performance compared to the NSK NJ307 bearings we used to purchase. The bearing operates flawlessly, managing both radial and axial loads with ease. It’s a cost-effective solution that doesn’t compromise on quality. I highly recommend giving Amigo a try.
Robert K.
I was skeptical at first about using the Amigo NJ307 bearing instead of the NTN NJ307, but after several months of use in our compressors, I’m thoroughly convinced. The bearing performs just as well, with no noticeable difference in operation. It’s been a smooth transition, and the cost savings have been significant. Amigo bearings are definitely on par with the leading brands.
Linda S.
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