# Timken NP329886-2 Tapered Roller Bearing Cup, 12-18 in OD, Precision Class 3 (ABEC 5) - MROSupply.com

***Timken NP329886-2 is a precision tapered roller bearing cup (outer ring) with a 12-18 inch outside diameter class. This cup is designated for a Class 3 (ABEC 5 equivalent) precision assembly, indicating tighter tolerances for applications requiring high accuracy and reduced runout. It is designed to be paired with a matched cone to form a complete bearing set for industrial gearboxes, pump shafts, and other heavy-duty machinery where precise alignment and load capacity are critical.***



## Product details:

- Catalog number: NP329886-2
- SKU: 5076898
- Price: ***$2,597.45*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Timken](https://www.mrosupply.com/brands/timken/)
- Category: 
    - [Taper Roller Bearing Cups](htts://www.mrosupply.com/bearings/roller-bearings/taper-roller-bearings/taper-roller-bearing-cups/)
    - [Taper Roller Bearings](htts://www.mrosupply.com/bearings/roller-bearings/taper-roller-bearings/)
    - [Roller Bearings](htts://www.mrosupply.com/bearings/roller-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 28.002 lb
- Returns: Yes


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


## Product documents / software:

- [Product Information](https://documents.mrosupply.com/product_documents/35/81/358135/apered-Single-Roller-Bearings---TS-Engineering_946wybP.pdf)

## 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.