# Smith Bearing IRR-5-1 Inner Race 5/16" Bore 5-1" OD Precision Ground - MROSupply.com

***Smith Bearing IRR-5-1 Inner Race with 5/16" bore and 5-1" outside diameter. Precision ground with bore tolerance +0.0000/-0.001 and OD tolerance +0.0000/-0.001. Overall width tolerance +.000/-.005. Designed for use with cam followers and track rollers.***



## Product details:

- Catalog number: IRR-5-1
- SKU: 2789746
- Price: ***$234.00*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Smith Bearings](https://www.mrosupply.com/brands/smith-bearings/)
- 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: 5.970 lb
- Technicall support: contact supplier for technical support on 800-932-0076


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


## Product attributes;

  
- Bore Diameter I.D. Tolerance: +0.0000/-0.001
  

  
- Hole Diameter: 5/16
  

  
- Outside Diameter Tolerance: +0.0000/-0.001
  

  
- Overall Width Tolerance: +.000/-.005
  

  
- SMITH Bearing Number: IRR-5-1
  
## Product documents / software:

- [Plane](https://documents.mrosupply.com/product_documents/IR/IRR-3-1/8/af14c132-53a2-4ae3-9edd-f2c296eb5b7b_CgGqzJf.JPG)

## Product's reviews:
- Cam folowers - Excellent price and service!




## 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.