# NTN 88505 Tapered Roller Bearing - Inch Series, Straight Bore, Single Row - MROSupply.com

***NTN 88505 is an inch-series single-row tapered roller bearing with a straight bore. Designed for radial and axial load combinations, it is suitable for gearboxes, wheel hubs, and industrial machinery.***



## Product details:

- Catalog number: 88505
- SKU: 5045358
- Price: ***$48.13*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [NTN Bearing](https://www.mrosupply.com/brands/ntn-bearing/)
- Category: 
    - [Ball Thrust Bearings](htts://www.mrosupply.com/bearings/ball-bearings/ball-thrust-bearings/)
    - [Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 0.289 lb


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


## Product attributes;

  
- Ball material: Steel
  

  
- Ball Material: Steel
  

  
- Be (in): 0.5906
  

  
- Bi (in): 0.6594
  

  
- Bore type: Round
  

  
- Bore Type: Round
  

  
- Cage material: Steel
  

  
- Cage Material: Steel
  

  
- Cage type: Pressed
  

  
- Cage Type: Pressed
  

  
- Configuration: One
  

  
- D (in): 2.0472
  

  
- d (in): 0.9843
  

  
- Dynamic load rating: 3150 lbf
  

  
- Dynamic Load Rating: 3150 lbf
  

  
- Enclosure: Double Sealed
  

  
- Limiting speed - grease: 8900 RPM
  

  
- Limiting Speed - Grease: 8900 RPM
  

  
- Material: High Carbon Chrome Steel
  

  
- Operating temperature range: -40 to 250 ºF
  

  
- Operating Temperature Range: -40 to 250 °F
  

  
- Precision: ISO Class 0
  

  
- r (in): 0.0394
  

  
- Radial internal clearance: CN
  

  
- Radial Internal Clearance: CN
  

  
- Seal material: Nitrile rubber
  

  
- Seal Material: Nitrile Rubber
  

  
- Seal type: Contact
  

  
- Seal Type: Contact
  

  
- Static load rating: 1770 lbf
  

  
- Static Load Rating: 1770 lbf
  

  
- Total width: 0.6594 in
  

  
- Type: Deep Groove Ball Bearing
  
## Product documents / software:

- [Drawing](https://documents.mrosupply.com/product_documents/50/45/5045722/1565_S_6xhTN1x.png)
- [Drawing](https://documents.mrosupply.com/product_documents/88/88503/1565_S.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.


- What is the difference between deep groove and angular contact ball bearings?: Deep groove ball bearings are the most common type. They’re designed to handle mainly radial loads, but they can also take some axial load in both directions. They’re simple, versatile, and used in everything from motors to conveyors.
Angular contact ball bearings are built for combined loads, especially where there’s significant axial force in one direction. They’re often used in pairs and are common in higher precision or higher load applications like pumps and gearboxes.
If your load is mostly radial, go deep groove. If axial load matters more, angular contact is usually the better choice.