# NTN 6405C3 Deep Groove Ball Bearing - 25 mm Bore, Open, C3 Clearance, Steel Cage - MROSupply.com

***NTN 6405C3 64 series single-row deep groove ball bearing with 25 mm straight bore, open enclosure, steel cage, and C3 radial internal clearance. High carbon chrome steel construction for electric motors, pumps, fans, and general rotating machinery applications.***



## Product details:

- Catalog number: 6405C3
- SKU: 830601
- Price: ***$91.94*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [NTN Bearing](https://www.mrosupply.com/brands/ntn-bearing/)
- Category: 
    - [6400 Series Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/6400-series-ball-bearings/)
    - [Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 1.155 lb


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


## Product attributes;

  
- B (in): 0.8268
  

  
- Ball Material: Steel
  

  
- Ball material: Steel
  

  
- Bore Type: Round
  

  
- Bore type: Round
  

  
- Cage Material: Steel
  

  
- Cage material: Steel
  

  
- Cage Type: Pressed
  

  
- Cage type: Pressed
  

  
- Configuration: One
  

  
- D (in): 3.1496
  

  
- d (in): 0.9843
  

  
- Da max: 2.8346 in
  

  
- da min: 1.2992 in
  

  
- Dynamic Load Rating: 8650 lbf
  

  
- Dynamic load rating: 8650 lbf
  

  
- Enclosure: Open
  

  
- Factor: 11.6
  

  
- I.D.: 25 mm
  

  
- Limiting Speed - Grease: 10000 RPM
  

  
- Limiting speed - grease: 10000 RPM
  

  
- Limiting Speed - Oil: 12000 RPM
  

  
- Limiting speed - oil: 12000 RPM
  

  
- Material: High carbon chrome steel
  

  
- O.D.: 80 mm
  

  
- Operating Temperature Range: -40 to 250 °F
  

  
- Operating temperature range: -40 to 250 ºF
  

  
- Precision: Class 0
  

  
- r (in): 0.0591
  

  
- Radial Internal Clearance: C3
  

  
- Radial internal clearance: C3
  

  
- ras max: 0.0591 in
  

  
- Seal material: None
  

  
- Seal type: None
  

  
- Static Load Rating: 3930 lbf
  

  
- Static load rating: 3930 lbf
  

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

- [Drawing](https://documents.mrosupply.com/product_documents/50/48/5048825/1148_S_oKE47Yd.png)
- [2D Sectional View PDF](https://documents.mrosupply.com/product_documents/64/6405C3/bearingfinder_2d_pdf_fixed_6405C3_U39lIJ5.pdf)
## Alternate products to `NTN 6405C3 Deep Groove Ball Bearing - 25 mm Bore, Open, C3 Clearance, Steel Cage - MROSupply.com`:
- [SKF 6405/C3 is a 25mm bore deep groove ball bearing with C3 greater-than-normal clearance. It features a sheet metal cage and is made of standard bearing steel. Suitable for electric motors, pumps, and general industrial applications where increased clearance accommodates thermal expansion or interference fits.](https://www.mrosupply.com/products/319963/as-markdown/)
- [Koyo 6405 single-row deep groove ball bearing with 25 mm bore, 80 mm OD, and 21 mm width. Open type design for general industrial rotating equipment including electric motors, pumps, and fans.](https://www.mrosupply.com/products/1495049/as-markdown/)






## 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.