# Koyo HJ-445628 Solid Race Needle Roller Bearing - 44.45 mm Bore, Open Type - MROSupply.com

***Koyo HJ-445628 is an open type solid race needle roller bearing with a 44.45 mm bore, 88.9 mm OD, and 44.45 mm width. Designed for radial load applications requiring a compact cross-section with high load capacity. Suitable for use in gearboxes, pumps, and industrial machinery.***



## Product details:

- Catalog number: HJ-445628
- SKU: 1496484
- Price: ***$84.88*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Koyo Bearing](https://www.mrosupply.com/brands/koyo-bearing/)
- Category: 
    - [Outer Race](htts://www.mrosupply.com/bearings/roller-bearings/needle-roller-bearings/outer-race/)
    - [Needle Roller Bearings](htts://www.mrosupply.com/bearings/roller-bearings/needle-roller-bearings/)
    - [Roller Bearings](htts://www.mrosupply.com/bearings/roller-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 1.368 lb
- UPC: 60579020796


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


## Product attributes;

  
- Bearing Design: Outer Ring & Roller Assembly
  

  
- Dynamic Load Rating: 26300 lbf
  

  
- Housing Bore - Loose Fit [MAX]: 3.501 in
  

  
- Housing Bore - Loose Fit [MIN]: 3 1/2 in
  

  
- Housing Bore - Tight Fit [MAX]: 3 1/2 in
  

  
- Housing Bore - Tight Fit [MIN]: 3.498 in
  

  
- Housing Shoulder Diameter: 3.188 in
  

  
- I.D.: 2 3/4 in
  

  
- Limiting Speed - Grease: 4000 rpm
  

  
- Limiting Speed - Oil: 6200 rpm
  

  
- O.D.: 3 1/2 in
  

  
- Oil Hole: w/Oil Hole
  

  
- Origin: Needle Radial
  

  
- Precision Ground: Yes
  

  
- Self Aligning: No
  

  
- Static Load Rating [MAX]: 55100 lbf
  

  
- Width: 1 3/4 in
  


## Product's reviews:
- Great service - great items at great price
- Admin assistance - good product!
- Koyo roller bearing inner ring - Good product.




## 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.