# McGill MR 12 N CAGEROL Needle Roller Bearing - Size 12, Unsealed - MROSupply.com

***McGill MR 12 N CAGEROL machined-race radial needle roller bearing, size 12, with cage-guided needle rollers and unsealed construction. Built from 52100 bearing steel for high radial load capacity in a compact section. Used in transmissions, planetary gearboxes, and oscillating linkages.***



## Product details:

- Catalog number: MR 12 N
- SKU: 2251615
- Price: ***$17.65*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [McGill Bearing](https://www.mrosupply.com/brands/mcgill-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: 0.113 lb
- UPC: 726166065065
- Technicall support: contact supplier for technical support on 800-626-2120


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


## Product attributes;

  
- Bore Size (in): 0.75
  

  
- Bore Type: Straight
  

  
- Cage Material: Steel
  

  
- Component Type: Outer race only
  

  
- Duplexing: No
  

  
- Flanges: No flange
  

  
- Full Complement/Caged: Caged
  

  
- Hole Diameter (in): 0.08
  

  
- Housing & Shaft Fillet (in): 0.04
  

  
- Includes Inner Ring: No
  

  
- Lubrication Hole Type: Lubrication groove and hole
  

  
- Material: 52100 Bearing Steel
  

  
- Operating Temperature Range (F): -20 to 250 °F
  

  
- Outer Width (in): 0.75
  

  
- Platform: Cagerol Bearing
  

  
- Radial Clearance: Normal
  

  
- Related Inner Ring: MI 8 N, MI 9 N
  

  
- Retainer: Yes
  

  
- Rolling Element: Needle Roller
  

  
- Seal Type: Unsealed
  

  
- Sealed: None
  

  
- Series: Narrow
  

  
- Speed [Max] Grease (RPM): 13000
  

  
- Speed [Max] Oil (RPM): 16000
  

  
- Width: 1
  
## Product documents / software:

- [Catalog](https://documents.mrosupply.com/product_documents/22/49/2249770/McGill_0304046000_Catalog.pdf)
- [Catalog Page](https://documents.mrosupply.com/product_documents/MR/MR%2010/MCC11012E_Sec_C-9-10.pdf)
- [Drawing](https://documents.mrosupply.com/product_documents/MR/MR%2048/MR.GIF)
- [Specification Sheet](https://documents.mrosupply.com/product_documents/22/51/2251249/McGill_5451000000_Specification_Sheet_WRj6iQ3.pdf)
- [3D Drawing IGES](https://documents.mrosupply.com/product_documents/MR/MR%2012%20N/regalpts_beloit_EPTCAD-MR-12-N-DEFAULT_5VrD52i.IGS)
## Alternate products to `McGill MR 12 N CAGEROL Needle Roller Bearing - Size 12, Unsealed - MROSupply.com`:
- [Koyo HJ-122012 is an open type solid race needle roller bearing with a 19.05 mm bore, 31.75 mm OD, and 19.05 mm width. Designed for radial load applications requiring a compact, separable inner ring assembly.](https://www.mrosupply.com/products/1496442/as-markdown/)
- [IKO Bearing BR122012 Machined Type Needle Roller Bearings, 3/4" Inside Diameter, 1 1/4" Outside Diameter, 3/4" Width, High Carbon Steel, Oil Hole](https://www.mrosupply.com/products/6377654/as-markdown/)

## Product's reviews:
- Great! - Got the bearing i needed at a fraction of the price with free shipping and quick delivery. I will definitely order the rest of my bearings from MRO
- Mcgill bearings - I was surprised at the money I was able to save on these bearings vs my other suppliers. I will buy from MRO as often as I can with service and prices like these.
- Mcgill bearings - Excellent product, price and service. I will be a repeat customer!
- Fast shipping - Fast shipping and correct items.




## 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.