# NTN 23028EAKW33 Spherical Roller Bearing - 140 mm Bore, Brass Cage, Annular Lube Groove - MROSupply.com

***NTN 23028EAKW33 is a 230 series spherical roller bearing with a 140 mm straight bore. Features an enhanced design brass cage and an annular lube groove with three lube holes (W33). Suitable for heavy-duty industrial applications such as gearboxes, fans, and pumps.***



## Product details:

- Catalog number: 23028EAKW33
- SKU: 2170941
- Price: ***$1,021.89*** 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 Spherical Roller Bearings](htts://www.mrosupply.com/bearings/roller-bearings/spherical-roller-bearings/straight-round-bore-spherical-roller-bearings/)
    - [Spherical Roller Bearings](htts://www.mrosupply.com/bearings/roller-bearings/spherical-roller-bearings/)
    - [Roller Bearings](htts://www.mrosupply.com/bearings/roller-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 13.514 lb
- UPC: 4547359749793


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


## Product attributes;

  
- B (in): 2.0866
  

  
- Bore type: Tapered
  

  
- Bore Type: Tapered
  

  
- Cage material: Steel
  

  
- Cage Material: Steel
  

  
- Cage type: Pressed
  

  
- Cage Type: Pressed
  

  
- D (in): 8.2677
  

  
- d (in): 5.5118
  

  
- d0: 0.1575 in
  

  
- Da max: 7.9134 in
  

  
- da min: 5.8661 in
  

  
- Dynamic load rating: 134000 lbf
  

  
- Dynamic Load Rating: 134000 lbf
  

  
- e: 0.22
  

  
- Enclosure: Open
  

  
- I.D.: 140 mm
  

  
- Limiting speed - grease: 2100 RPM
  

  
- Limiting Speed - Grease: 2100 RPM
  

  
- Limiting speed - oil: 2700 RPM
  

  
- Limiting Speed - Oil: 2700 RPM
  

  
- Material: Through Hardened Steel
  

  
- O.D.: 210 mm
  

  
- Operating temperature range: -40 to 400 ºF
  

  
- Operating Temperature Range: -40 to 400 °F
  

  
- r (in): 0.0787
  

  
- Radial internal clearance: CN
  

  
- Radial Internal Clearance: CN
  

  
- Radial internal clearance specification: Normal
  

  
- Radial Internal Clearance Specification: Normal
  

  
- ras max: 0.0787 in
  

  
- Ring modification: Relube
  

  
- Ring Modification: Relube
  

  
- Series: 230
  

  
- Static load rating: 176000 lbf
  

  
- Static Load Rating: 176000 lbf
  

  
- Taper: 1:12
  

  
- Type: Spherical Roller Bearing
  

  
- W0: 0.3543 in
  

  
- Y0: 3.07
  

  
- Y1: 3.14
  

  
- Y2: 4.67
  
## Product documents / software:

- [Drawing](https://documents.mrosupply.com/product_documents/24/24134EMK30W33/1127_S_AypQkI1.png)
- [Drawing](https://documents.mrosupply.com/product_documents/50/49/5049077/1127_S_PmbuUjR.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.