# NTN 6308T2LLBC3P5 Deep Groove Ball Bearing - 40 mm Bore, Double Sealed, Polyamide Cage, C3 Clearance - MROSupply.com

***NTN 6308T2LLBC3P5 is a 63 series single-row deep groove ball bearing with a 40 mm straight bore. It features double non-contact rubber seals (LLB), a polyamide cage, and C3 clearance. Constructed from high carbon chrome steel, it is designed for electric motors, pumps, and general rotating machinery.***



## Product details:

- Catalog number: 6308T2LLBC3P5
- SKU: 5047410
- Price: ***$398.29*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [NTN Bearing](https://www.mrosupply.com/brands/ntn-bearing/)
- Category: 
    - [6300 Series Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/6300-series-ball-bearings/)
    - [Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 1.351 lb
- UPC: 4547359576733


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


## Product attributes;

  
- B (in): 0.9055
  

  
- Ball material: Steel
  

  
- Ball Material: Steel
  

  
- Bore type: Round
  

  
- Bore Type: Round
  

  
- Cage material: Nylon
  

  
- Cage Material: Nylon
  

  
- Cage type: Fiber glass reinforced
  

  
- Cage Type: Fiber Glass Reinforced
  

  
- Configuration: One
  

  
- D (in): 3.5433
  

  
- d (in): 1.5748
  

  
- da max: 2.1260 in
  

  
- Da max: 3.2283 in
  

  
- da min: 1.8898 in
  

  
- Dynamic load rating: 10110 lbf
  

  
- Dynamic Load Rating: 10110 lbf
  

  
- Enclosure: Double Sealed
  

  
- Factor: 13.2
  

  
- I.D.: 40 mm
  

  
- Limiting speed - grease: 7800 RPM
  

  
- Limiting Speed - Grease: 7800 RPM
  

  
- Material: High Carbon Chrome Steel
  

  
- O.D.: 90 mm
  

  
- Operating temperature range: -40 to 250 ºF
  

  
- Operating Temperature Range: -40 to 250 °F
  

  
- Precision: ISO Class 5
  

  
- r (in): 0.0591
  

  
- r1: 0.0197 in
  

  
- Radial internal clearance: C3
  

  
- Radial Internal Clearance: C3
  

  
- ras max: 0.0591 in
  

  
- Seal material: Nitrile rubber
  

  
- Seal Material: Nitrile Rubber
  

  
- Seal type: Non-Contact
  

  
- Seal Type: Non-Contact
  

  
- Static load rating: 5400 lbf
  

  
- Static Load Rating: 5400 lbf
  

  
- Type: Deep Groove Ball Bearing
  

  
- Width: 23 mm
  
## Product documents / software:

- [Drawing](https://documents.mrosupply.com/product_documents/50/48/5048470/1150_S_ixD39lx.png)
- [2D Sectional View PDF](https://documents.mrosupply.com/product_documents/63/6308T2LLBC3P5/bearingfinder_2d_pdf_fixed_6308T2LLBC3P5_bjoZUCP.pdf)






## 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.