# NTN HM903244 Tapered Roller Bearing Cone - Inch Series, Straight Bore, Case Carburized Steel - MROSupply.com

***NTN HM903244 single-row tapered roller bearing cone from the inch series. Straight bore, case carburized steel construction for durability under heavy radial and axial loads. Designed for use in industrial gearboxes, vehicle drivetrains, and high-load applications.***



## Product details:

- Catalog number: HM903244
- SKU: 275017
- Price: ***$90.36*** 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 Cones](htts://www.mrosupply.com/bearings/roller-bearings/taper-roller-bearings/taper-roller-bearing-cones/)
    - [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: 1.435 lb


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


## Product attributes;

  
- a (Effective Load Center): 0.0200 in
  

  
- B (in): 1.6250
  

  
- Bore Type: Round
  

  
- Bore type: Round
  

  
- Dynamic Load Rating: 21600 lbf
  

  
- Dynamic load rating: 21600 lbf
  

  
- e (Axial Load Factor): 0.74
  

  
- Height: 3.875
  

  
- I.D.: 1.625 in
  

  
- Length: 3.875
  

  
- Material: Case carburized steel
  

  
- O.D.: 3.75 in
  

  
- Operating Temperature Range: -40 to 250 °F
  

  
- Operating temperature range: -40 to 250 ºF
  

  
- R (in): 0.0600
  

  
- Static Load Rating: 26100 lbf
  

  
- Static load rating: 26100 lbf
  

  
- Type: Cone
  

  
- Wi: 1.1142 in
  

  
- Y2 (Axial Load Factor): 0.81
  
## Product documents / software:

- [Drawing](https://documents.mrosupply.com/product_documents/58/15/5815581/1330_S_HfF0tXU.png)
- [Drawing](https://documents.mrosupply.com/product_documents/JM/JM515649/1330_S_A0H2fF5.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.