# NTN 25521 Tapered Roller Bearing Cup - Inch Series, Single Row - MROSupply.com

***NTN 25521 is a single row inch series tapered roller bearing cup. It features a straight bore and is designed for use with a matching cone in applications such as gearboxes, axle housings, and industrial machinery. This cup is manufactured to NTN quality standards for reliable performance.***



## Product details:

- Catalog number: 25521
- SKU: 283673
- Price: ***$22.97*** Each
- Quantity: This vendor has a minimum order quantity of
3.Order minimum ($) may be applied.
Add desired QTY to cart and proceed to checkout to view minimum'

- Brand Minimum Order Quantity - 3
(This is the minimum order quantity if ordering this unit alone
from the vendor. Adding other products from the same vendor will reduce
the overall requirement. If adding multiple products from same vendor,
please add all products to cart to see total minimum.)
- 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: 0.430 lb


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


## Product attributes;

  
- Height: 3.27
  

  
- I.D.: 1.796 in
  

  
- Length: 3.27
  

  
- Material: Carburized Steel
  

  
- O.D.: 3.27 in
  

  
- Width: 0.75
  
## Product documents / software:

- [Drawing](https://documents.mrosupply.com/product_documents/LM/LM603012/1357_S_PGFpBp5.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.