# NTN 1R25X30X12.5 Machined Ring Inner Race - 25 mm Bore, 30 mm OD, 12.5 mm Width, High Carbon Chrome Steel - MROSupply.com

***NTN 1R25X30X12.5 machined ring inner race with 25 mm bore, 30 mm outside diameter, and 12.5 mm width. Made from high carbon chrome steel, this inner ring provides a hardened raceway for needle roller bearing assemblies in industrial applications.***



## Product details:

- Catalog number: 1R25X30X12.5
- SKU: 282764
- Price: ***$16.42*** Each
- Quantity: This vendor has a minimum order quantity of
5.Order minimum ($) may be applied.
Add desired QTY to cart and proceed to checkout to view minimum'

- Brand Minimum Order Quantity - 5
(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: 
    - [Inner Race](htts://www.mrosupply.com/bearings/roller-bearings/needle-roller-bearings/inner-race/)
    - [Needle Roller Bearings](htts://www.mrosupply.com/bearings/roller-bearings/needle-roller-bearings/)
    - [Roller Bearings](htts://www.mrosupply.com/bearings/roller-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 0.044 lb


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


## Product attributes;

  
- B (in): 0.4921
  

  
- Bore Type: Round
  

  
- Bore type: Round
  

  
- d (in): 0.9843
  

  
- da min: 1.0630 in
  

  
- F (in): 1.1811
  

  
- I.D.: 25 mm
  

  
- Material: High carbon chrome steel
  

  
- O.D.: 30 mm
  

  
- r (in): 0.0118
  

  
- ras max: 0.0118 in
  

  
- t (in): 0.0709
  

  
- Tolerance: ISO class 0 (RBEC 1)
  

  
- Type: Inner Ring
  
## Product documents / software:

- [Drawing](https://documents.mrosupply.com/product_documents/1R/1R35X43X22/1655_S_dajYTbG.png)
- [Drawing](https://documents.mrosupply.com/product_documents/50/44/5044716/1655_S_3JfiTsg.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.