# Timken 42381-90074 Precision Tapered Roller Bearing Matched Set, 4-8 in OD, Class 3 - MROSupply.com

***Timken 42381-90074 precision matched tapered roller bearing assembly, cone 42381 paired with cup match code 90074. Class 3 (ABEC 5) precision set for industrial gearboxes, pump shafts, and applications requiring high runout accuracy and controlled preload. 4-8 inch outside diameter size class for heavy-duty service.***



## Product details:

- Catalog number: 42381-90074
- SKU: 5065104
- 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: 4.141 lb
- Returns: Yes


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


## Product attributes;

  
- 105 mm Cone part number: 42381 Cone width:1.1406 in
  

  
- 112 mm Cone frontface backing diameter: 4.13 in
  

  
- 134.11 mm Cup frontface backing diameter: 5.64 in
  

  
- 143.26 mm Cup outer diameter: 5.8750 in
  

  
- 149.225 mm Cup part number: 42587 Cup width:0.9688 in
  

  
- 2.5 mm Cage-cone frontface clearance: 0.14 in
  

  
- 28.971 mm Cup backface backing diameter: 5.28 in
  

  
- 3.6 mm Cone backface backing diameter: 4.41 in
  

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

  
- I.D.: 3.8125 in / 96.838 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.