# Timken LM330448-905A3 Double-Cup Tapered Roller Bearing Assembly, 4-8 in OD - MROSupply.com

***Timken LM330448-905A3 is a double-cup tapered roller bearing assembly for heavy-duty industrial applications. This matched assembly features a precision cup match code (905A3) for consistent preload and runout, designed for use in gearboxes, conveyor systems, and heavy machinery within the 4-8 inch outside diameter range. It is engineered to handle combined radial and thrust loads in demanding environments.***



## Product details:

- Catalog number: LM330448-905A3
- SKU: 5076815
- 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 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: 16.643 lb
- Returns: Yes


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


## Product attributes;

  
- 166 mm Cone part number: LM330448 Cone width:1.625 in
  

  
- 197.40 mm Cup outer diameter: 8 in
  

  
- 2.5 mm Cone backface backing diameter: 6.54 in
  

  
- 203.2 mm Cup part number: LM330410D Design unit:Inch Related Assembly Number(s):LM330448-902B1 LM330448-903A5 LM330448-905A3 Series:LM330400 T - Bearing Width across Cones:3.6249 in
  

  
- 41.275 mm Cup frontface backing diameter: 7.77 in
  

  
- 79.375 mm Cage material: Stamped Steel Cage-cone backface clearance:0.1 in
  

  
- C - Double Cup Width: 3.1250 in
  

  
- I.D.: 6.0000 in / 152.400 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.