# NTN JHM840449/JHM#09 Tapered Roller Bearing - Inch Series, Single Row, Straight Bore - MROSupply.com

***NTN JHM840449/JHM#09 inch series single row tapered roller bearing with straight bore. Designed for high radial and axial load capacity in industrial gearboxes, axle housings, and heavy machinery applications.***



## Product details:

- Catalog number: JHM840449/JHM#09
- SKU: 5048670
- Price: ***$5,442.41*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [NTN Bearing](https://www.mrosupply.com/brands/ntn-bearing/)
- Category: 
    - [Taper Roller Bearing Full Assemblies](htts://www.mrosupply.com/bearings/roller-bearings/taper-roller-bearings/taper-roller-bearing-full-assemblies/)
    - [Taper Roller Bearings](htts://www.mrosupply.com/bearings/roller-bearings/taper-roller-bearings/)
    - [Roller Bearings](htts://www.mrosupply.com/bearings/roller-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 72.532 lb
- UPC: 4550253070207


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


## Product attributes;

  
- a (Effective Load Center): 0.3200 in
  

  
- B (in): 7.8740
  

  
- Bore type: Round
  

  
- Bore Type: Round
  

  
- Cone Number: JHM840449
  

  
- Configuration: One
  

  
- Cup Number: JHM840410
  

  
- D (in): 11.8110
  

  
- Dynamic load rating: 153000 lbf
  

  
- Dynamic Load Rating: 153000 lbf
  

  
- e (Axial Load Factor): 0.52
  

  
- Enclosure: Open
  

  
- I.D.: 7.874 in
  

  
- Lubrication: w/o Oil Hole
  

  
- Material: Case Carburized Steel
  

  
- O.D.: 11.811 in
  

  
- Operating temperature range: -40 to 250 ºF
  

  
- Operating Temperature Range: -40 to 250 °F
  

  
- Precision rating: Class N
  

  
- Precision Rating: Class N
  

  
- R (in): 0.14
  

  
- r (in): 0.1000
  

  
- Static load rating: 295000 lbf
  

  
- Static Load Rating: 295000 lbf
  

  
- Style: Cone & Cup
  

  
- Type: Tapered Roller Bearing
  

  
- U: 8.78 in
  

  
- V: 8.45 in
  

  
- W: 2.5591 in
  

  
- Wi: 2.4409 in
  

  
- Width: 5.5512 in
  

  
- Wo: 2.0079 in
  

  
- X: 11.38 in
  

  
- Y2 (Axial Load Factor): 1.15
  

  
- Z: 10.75 in
  
## Product documents / software:

- [Drawing](https://documents.mrosupply.com/product_documents/64/22/6422118/1329_S_T0prz4G.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.