# Timken NJ240EMAC4 NJ-Type Cylindrical Roller Bearing, 200mm Bore, Brass Cage, C4 Clearance - MROSupply.com

***Timken NJ240EMAC4 single-row NJ-type cylindrical roller bearing with 200 mm bore and brass cage (EMA) for shock and high-temperature resistance. C4 radial internal clearance accommodates thermal expansion and heavy interference fits. Designed for axial shaft location in one direction, suitable for industrial gearboxes and heavy machinery.***



## Product details:

- Catalog number: NJ240EMAC4
- SKU: 5117781
- Price: ***$5,449.60*** 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 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: 59.400 lb
- Returns: Yes


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


## Product attributes;

  
- 13.5000 in Outer ring width: 58 mm
  

  
- 2.2835 in O.D. (in): 360 mm 14.1732 Outer ring backing diameter:343 mm
  

  
- 2.2835 in Reference thermal speed rating (grease): 1400 RPM Static radial rating:1050000 N
  

  
- 236000 lbf Type: NJ
  

  
- 8.5000 in Inner ring width: 58 mm
  

  
- Design units: METRIC
  

  
- I.D.: 200 mm
  

  
- Type: NJ
  
## Product documents / software:

- [Drawing](https://documents.mrosupply.com/product_documents/51/18/5118067/-Radial-Bearings---Single-Row-ISO-NU_NJ_NF_NUP_YGS5V9A.jpg)

## 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.