# NTN N317 Cylindrical Roller Bearing - 85 mm Bore, N Type, No Inner Ring Flanges, Separable - MROSupply.com

***NTN N317 N-type single-row cylindrical roller bearing with a straight 85 mm bore. The N configuration has no flanges on the inner ring, making the bearing separable and capable of accommodating axial expansion of the shaft. Suitable for gearboxes, electric motors, and pumps.***



## Product details:

- Catalog number: N317
- SKU: 272812
- Price: ***$555.51*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [NTN Bearing](https://www.mrosupply.com/brands/ntn-bearing/)
- Category: 
    - [Straight / Round Bore Cylindrical Roller Bearings](htts://www.mrosupply.com/bearings/roller-bearings/cylindrical-roller-bearings/straight-round-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: 9.877 lb
- UPC: 4547359151862


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


## Product attributes;

  
- B (in): 1.6142
  

  
- Bore Type: Round
  

  
- Bore type: Round
  

  
- Cage Material: Pressed Steel
  

  
- Cage material: Pressed steel
  

  
- Configuration: One
  

  
- d (in): 3.3465
  

  
- D (in): 7.0866
  

  
- Da max: 6.5748 in
  

  
- da min: 3.8583 in
  

  
- Db max: 6.5748 in
  

  
- db min: 3.8583 in
  

  
- Db min: 6.5748 in
  

  
- Dynamic Load Rating: 47500 lbf
  

  
- Dynamic load rating: 47500 lbf
  

  
- Enclosure: Open
  

  
- Ew: 6.1417 in
  

  
- I.D.: 85 mm
  

  
- J (in): 4.6260
  

  
- Limiting Speed - Grease: 3900 RPM
  

  
- Limiting speed - grease: 3900 RPM
  

  
- Limiting Speed - Oil: 4600 RPM
  

  
- Limiting speed - oil: 4600 RPM
  

  
- Material: Hardened alloy steel
  

  
- O.D.: 180 mm
  

  
- Oil Hole: w/o Oil Hole
  

  
- Oil hole: w/o Oil Hole
  

  
- Operating Temperature Range: -40 to 250 °F
  

  
- Operating temperature range: -40 to 250 ºF
  

  
- Precision: ISO class 0
  

  
- r (in): 0.0984
  

  
- r1as max: 0.0984 in
  

  
- Radial Internal Clearance: CN
  

  
- Radial internal clearance: CN
  

  
- Static Load Rating: 51500 lbf
  

  
- Static load rating: 51500 lbf
  

  
- Type: Cylindrical Roller Bearing
  
## Product documents / software:

- [Drawing](https://documents.mrosupply.com/product_documents/50/48/5048143/1298_S_j2K0fKu.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.