# NTN NU224 Cylindrical Roller Bearing - 120 mm Bore, Straight Bore, No Outer Flanges, NU Type - MROSupply.com

***NTN NU224 is a single-row cylindrical roller bearing with a 120 mm straight bore. The NU design features no flanges on the outer ring, making it separable and capable of accommodating axial expansion. This bearing is suitable for applications requiring free axial movement of the shaft relative to the housing, such as gearboxes, electric motors, and pumps.***



## Product details:

- Catalog number: NU224
- SKU: 271728
- Price: ***$763.75*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [NTN Bearing](https://www.mrosupply.com/brands/ntn-bearing/)
- Category: 
    - [Straight / Round Bore Cylindrical Roller Bearings](htts://www.mrosupply.com/bearings/roller-bearings/cylindrical-roller-bearings/straight-round-bore-cylindrical-roller-bearings/)
    - [Cylindrical Roller Bearings](htts://www.mrosupply.com/bearings/roller-bearings/cylindrical-roller-bearings/)
    - [Roller Bearings](htts://www.mrosupply.com/bearings/roller-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 12.610 lb
- UPC: 4547359142501


## Product images:
- https://static.mrosupply.com/images/noimage.webp


## Product attributes;

  
- B (in): 1.5748
  

  
- Bore Type: Round
  

  
- Bore type: Round
  

  
- Cage Material: Pressed Steel
  

  
- Cage material: Pressed steel
  

  
- Configuration: One
  

  
- d (in): 4.7244
  

  
- D (in): 8.4646
  

  
- Da max: 8.0315 in
  

  
- da min: 5.1575 in
  

  
- Db max: 8.0315 in
  

  
- db min: 5.1575 in
  

  
- Dynamic Load Rating: 58500 lbf
  

  
- Dynamic load rating: 58500 lbf
  

  
- Enclosure: Open
  

  
- Fw: 5.6496 in
  

  
- I.D.: 120 mm
  

  
- Limiting Speed - Grease: 3200 RPM
  

  
- Limiting speed - grease: 3200 RPM
  

  
- Limiting Speed - Oil: 3700 RPM
  

  
- Limiting speed - oil: 3700 RPM
  

  
- Material: Hardened alloy steel
  

  
- O.D.: 215 mm
  

  
- Oil Hole: w/o Oil Hole
  

  
- Oil hole: w/o Oil Hole
  

  
- Operating Temperature Range: -40 to 250 °F
  

  
- Operating temperature range: -40 to 250 ºF
  

  
- Precision: ISO class 0
  

  
- r (in): 0.0787
  

  
- r1as max: 0.0787 in
  

  
- Radial Internal Clearance: CN
  

  
- Radial internal clearance: CN
  

  
- Static Load Rating: 72000 lbf
  

  
- Static load rating: 72000 lbf
  

  
- Tolerance: ISO class 0 (RBEC 1)
  

  
- Type: Cylindrical Roller Bearing
  
## Product documents / software:

- [Drawing](https://documents.mrosupply.com/product_documents/50/48/5048704/1650_S_oH12ALD.png)






## FAQ:

- How do I choose the right type of bearing for my application?: Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints.
For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials.
In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.