# Timken 23128EJW33 Spherical Roller Bearing 140mm Bore Straight Bore Steel Cage W33 - MROSupply.com

***Timken 23128EJW33 is a spherical roller bearing with a 140 mm straight bore and a pressed steel cage (EJ). It features a W33 lubrication groove and three holes in the outer ring. This self-aligning, double-row bearing has a dynamic radial load rating of 172,000 lbf and is suitable for applications under 400 mm OD, such as industrial gearboxes and heavy machinery. It supersedes part number 23128CJW33.***



## Product details:

- Catalog number: 23128EJW33
- SKU: 5118343
- Price: ***$1,379.93*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Timken](https://www.mrosupply.com/brands/timken/)
- 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: 22.330 lb
- Returns: Yes


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


## Product attributes;

  
- Cage material: Steel
  

  
- Cage type: EJ
  

  
- Design unit: METRIC
  

  
- Dynamic radial rating (two-rows): 172000 lbf
  

  
- Geometry factor: 0.0831
  

  
- I.D.: 5.5118 in
  

  
- Inner ring "to clear" radius: 0.080 in
  

  
- Inner ring backing diameter: 6.300 in
  

  
- Inner ring width: 2.6772 in
  

  
- ISO factor: 3.72
  

  
- O.D.: 8.8583 in
  

  
- Outer ring "to clear" radius: 0.080 in
  

  
- Outer ring backing diameter: 8.200 in
  

  
- Outer ring width: 2.6772 in
  

  
- Reference thermal speed rating (grease): 1800
  

  
- Reference thermal speed rating (oil): 2100
  

  
- Static radial rating: 240000 lbf
  

  
- Superseded part: 23128CJW33
  
## Product documents / software:

- [Spherical Roller Bearings Steel Cage](https://documents.mrosupply.com/product_documents/51/18/5118343/23128ejw33_BSdYcTk)

## Product's reviews:
- Best company to buy from - I always buy from MRO is a very reliable company to work with




## 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.