# NTN 3130 Tapered Roller Bearing - Inch Series, Straight Bore - MROSupply.com

***NTN 3130 is an inch series tapered roller bearing with a straight bore. Designed for single-row applications, it accommodates combined radial and axial loads. Common in gearboxes, conveyor systems, and industrial machinery.***



## Product details:

- Catalog number: 3130
- SKU: 284201
- Price: ***$110.00*** 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 Cups](htts://www.mrosupply.com/bearings/roller-bearings/taper-roller-bearings/taper-roller-bearing-cups/)
    - [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: 0.500 lb


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


## Product attributes;

  
- I.D.: 1.3125 in
  

  
- Material: Carburized Steel
  

  
- O.D.: 2.8603 in
  

  
- Width: 0.9375 in
  
## Product documents / software:

- [Drawing](https://documents.mrosupply.com/product_documents/50/48/5048621/1357_S_VJ8AJoY.png)
- [Drawing 1357_S](https://documents.mrosupply.com/product_documents/28/31/283133/1357_S_Hdvi9EL.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.