# SKF NUP 311 ECJ NUP-Type Cylindrical Roller Bearing 55mm Bore Enhanced Steel Cage - MROSupply.com

***SKF NUP 311 ECJ 55mm bore NUP-type cylindrical roller bearing with an enhanced steel cage. The NUP design features a double-flanged outer ring with a retainer, accommodating axial loads in both directions. Suitable for high-radial-load applications with moderate to high speeds.***



## Product details:

- Catalog number: NUP 311 ECJ
- SKU: 314548
- Price: ***$321.04*** 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: 3.459 lb


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


## Product attributes;

  
- Bearing Part: Complete bearing
  

  
- Bore Type: Cylindrical
  

  
- Cage: Sheet metal
  

  
- Dimension Type: Metric
  

  
- Inner Diameter (mm): 55.000
  

  
- Locating Feature Bearing: None
  

  
- Loose Side Ring: Loose rib (flat washer)
  

  
- Lubricant (in Bearing): N/A
  

  
- Material/Treatment: Bearing steel
  

  
- Number of Ribs - Inner Ring: One
  

  
- Number of Ribs - Outer Ring: Two
  

  
- O.D. (in): 4 5/7
  

  
- Outer Diameter (mm): 120.000
  

  
- Radial Internal Clearance: C0
  

  
- Relubrication Feature: Without
  

  
- Sealing: None
  

  
- Width (mm): 29.000
  
## Product documents / software:

- [Abutment dimensions](https://documents.mrosupply.com/product_documents/NU/NUP%202304%20ECP/1503200185-018620-201000020wp_avqsEwl.svg)
- [Dimensions](https://documents.mrosupply.com/product_documents/NU/NUP%202304%20ECP/120120011320-201000020wp_XvQXgOp.svg)
- [3D DXF](https://documents.mrosupply.com/product_documents/NU/NUP%20311%20ECJ/roulement_nup_311_ecj_2_3D_YCbM5bo.dxf)
## Alternate products to `SKF NUP 311 ECJ NUP-Type Cylindrical Roller Bearing 55mm Bore Enhanced Steel Cage - MROSupply.com`:
- [Rollway U-1311-J 55 mm Bore Size, 120 mm Outside Diameter, Radial Cylindrical Roller Bearing, Caged Roller, Straight Bore, Unsealed, High Chromium Bearing Steel, Normal Radial Clearance](https://www.mrosupply.com/products/2302094/as-markdown/)
- [Link-Belt MSN1311EX 10471450 Series 1300 unmounted cylindrical roller bearing with 55 mm bore, direct shaft mount, and 120 mm OD. Features a short single-rib inner ring with side plate and double-rib outer ring. Constructed from 52100 bearing steel for medium-duty industrial applications.](https://www.mrosupply.com/products/485994/as-markdown/)

## Product's reviews:
- Bearing purchase - Good price and fast delivery!! Also a pleasure doing business with MROSupply.com!!
- Bearing - Old hard to find bearing for a 85 year old tractor. Fit perfect and price was great.
- Skf 6205-2z/gjn - Item is exactly what I was looking for.
Like always you get high quality with
SKF
- 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.