# SKF NNU 4934 B/SPC3W33 NNU-Type Double-Row Cylindrical Roller Bearing 170mm Bore Machined Cage - MROSupply.com

***SKF NNU 4934 B/SPC3W33 double-row cylindrical roller bearing, 170mm bore, 9in OD. NNU-type with flanges on the inner ring for high radial load capacity. Machined (solid) cage. /SPC3W33 suffix indicates special precision class, C3 clearance, and annular lube groove with three lubrication holes for relubrication.***



## Product details:

- Catalog number: NNU 4934 B/SPC3W33
- SKU: 318617
- Price: ***$3,605.45*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [SKF Bearing](https://www.mrosupply.com/brands/skf-bearing/)
- Category: 
    - [Tapered Bore Cylindrical Roller Bearings](htts://www.mrosupply.com/bearings/roller-bearings/cylindrical-roller-bearings/tapered-bore-cylindrical-roller-bearings/)
    - [Cylindrical Roller Bearings](htts://www.mrosupply.com/bearings/roller-bearings/cylindrical-roller-bearings/)
    - [Roller Bearings](htts://www.mrosupply.com/bearings/roller-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 16.226 lb


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


## Product attributes;

  
- Bearing Part: Complete bearing
  

  
- Bore Type: Cylindrical
  

  
- Cage: Machined (solid)
  

  
- Dimension Type: Metric
  

  
- Inner Diameter (mm): 170.000
  

  
- Locating Feature Bearing: None
  

  
- Loose Side Ring: None
  

  
- Lubricant (in Bearing): None
  

  
- Material/Treatment: Bearing steel
  

  
- Number of Ribs - Inner Ring: None
  

  
- Number of Ribs - Outer Ring: Three
  

  
- O.D. (in): 9
  

  
- Outer Diameter (mm): 230.000
  

  
- Radial Internal Clearance: C3
  

  
- Relubrication Feature: With
  

  
- Sealing: None
  

  
- Width (mm): 60.000
  


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## 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.