# SKF NA 4904.2RS Needle Roller Bearing 20mm Bore Double Sealed Machined Cage - MROSupply.com

***SKF NA 4904.2RS needle roller bearing, 20mm bore, double sealed with contact seals. Features a machined cage for high radial load capacity in compact spaces. Suitable for gearboxes, pumps, and automotive applications.***



## Product details:

- Catalog number: NA 4904.2RS
- SKU: 318101
- Price: ***$113.60*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [SKF Bearing](https://www.mrosupply.com/brands/skf-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: 0.184 lb


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


## Product attributes;

  
- Bearing Part: Complete bearing
  

  
- Cage: With
  

  
- Dimension Type: Metric
  

  
- Inner Diameter (mm): 20.000
  

  
- Lubricant (in Bearing): Grease
  

  
- Material/Treatment: Bearing steel
  

  
- Outer Diameter (mm): 37.000
  

  
- Relubrication Feature: With
  

  
- Sealing: Seal on both sides
  

  
- Width (mm): 18.000
  
## Product documents / software:

- [Abutment dimensions](https://documents.mrosupply.com/product_documents/NA/NA%204906.2RS/150320003520-201000020wp_xu2uM7R.svg)
- [Dimensions](https://documents.mrosupply.com/product_documents/NA/NA%204906.2RS/111220004420-20150320003420-201000020wp_wK4KBGE.svg)
- [DXF](https://documents.mrosupply.com/product_documents/NA/NA%204904.2RS/NA_4904.2RS_eo2BrfM.dxf)

## Product's reviews:
- Bearing purchase - Good price and fast delivery!! Also a pleasure doing business with MROSupply.com!!
- Excellent! - The perfect part… and FAST shipping! Thank you!!
- Agradecimiento. - Excelente servicio, confiable, rápido y efectivo.
Los seguiré llamando para mis necesidades.
- Purchase of bearing - exactly what we needed and it showed up in only 1 day thank you so much.




## 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.