# Timken 29880-90031 Two-Row Tapered Roller Bearing Assembly, 12-18 in OD, Matched Set - MROSupply.com

***Timken 29880-90031 matched two-row tapered roller bearing assembly with 12-18 inch outer diameter cup. Precision-matched set designated by cone 29880 and cup match code 90031, engineered for heavy-duty industrial applications requiring high radial and axial load capacity, such as gearboxes, large conveyors, and rolling mill equipment. Ensures proper preload and runout for reliable performance in demanding environments.***



## Product details:

- Catalog number: 29880-90031
- SKU: 5065127
- Call for Pricing - 888-671-2883
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Timken](https://www.mrosupply.com/brands/timken/)
- Category: 
    - [Taper Roller Bearing Full Assemblies](htts://www.mrosupply.com/bearings/roller-bearings/taper-roller-bearings/taper-roller-bearing-full-assemblies/)
    - [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: 20.458 lb
- Returns: Yes


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


## Product attributes;

  
- 1 mm Cone backface backing diameter: 10.91 in
  

  
- 22.225 mm Cup frontface backing diameter: 12.29 in
  

  
- 277 mm Cone part number: 29880 Cone width:0.875 in
  

  
- 311.91 mm Cup outer diameter: 12.7500 in
  

  
- 323.85 mm Cup part number: 29820D Design unit:Inch Related Assembly Number(s):29880-90026 29880-90031 29880-90041 29880-90042 Series:29800 T - Bearing Width across Cones:2.4999 in
  

  
- 50.800 mm Cage material: Stamped Steel Cage-cone backface clearance:0.04 in
  

  
- C - Double Cup Width: 2.0000 in
  

  
- I.D.: 10.5 in / 266.7 mm
  
## 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.