# NTN NN3010KC1NAP4 Double Row Cylindrical Roller Bearing - 50 mm Bore, Tapered Bore, P4 Precision - MROSupply.com

***NTN NN3010KC1NAP4 is a double row cylindrical roller bearing with a 50 mm bore and tapered bore (1:12). The NN type has no flanges on the outer ring, allowing axial expansion. Features a machined brass cage and P4 precision class. Suitable for high-speed machine tool spindles and precision applications.***



## Product details:

- Catalog number: NN3010KC1NAP4
- SKU: 272125
- Price: ***$547.36*** 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: 0.904 lb


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


## Product attributes;

  
- B (in): 0.9055
  

  
- Bore Type: Tapered
  

  
- Bore type: Tapered
  

  
- C (in): 0.9055
  

  
- Cage Material: High Strength, 2 piece, Machined Brass
  

  
- Cage material: High strength, 2 piece, machined brass
  

  
- Configuration: Two
  

  
- D (in): 3.1496
  

  
- d (in): 1.9685
  

  
- Da max: 2.9134 in
  

  
- da min: 2.1654 in
  

  
- Db max: 2.9528 in
  

  
- db min: 2.2441 in
  

  
- Db min: 2.9134 in
  

  
- Dynamic Load Rating: 11900 lbf
  

  
- Dynamic load rating: 11900 lbf
  

  
- Enclosure: Open
  

  
- Ew: 2.8543 in
  

  
- I.D.: 50 mm
  

  
- Limiting Speed - Grease: 8000 RPM
  

  
- Limiting speed - grease: 8000 RPM
  

  
- Limiting Speed - Oil: 9400 RPM
  

  
- Limiting speed - oil: 9400 RPM
  

  
- Material: Hardened alloy steel
  

  
- O.D.: 80 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 4
  

  
- r (in): 0.0394
  

  
- Radial Internal Clearance: C1NA
  

  
- Radial internal clearance: C1NA
  

  
- ras max: 0.0394 in
  

  
- Static Load Rating: 16300 lbf
  

  
- Static load rating: 16300 lbf
  

  
- Taper: 1 to 12
  

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

- [Drawing](https://documents.mrosupply.com/product_documents/50/48/5048540/1324_S_0BlDpF4.png)
- [Drawing](https://documents.mrosupply.com/product_documents/NN/NN3017KC1NAPX3/1324_S_R2Md0Io.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.