# Timken QAF08A108ST Spherical Roller Flange Bearing, 1-1/2" Shaft, Setscrew Locking - MROSupply.com

***Timken QAF08A108ST is a spherical roller mounted unit with a four-bolt flange housing. This housed bearing features a 1-1/2 inch shaft size and a setscrew locking mechanism. It is designed for heavy-duty applications requiring high radial load capacity and self-alignment, such as conveyors, fans, and industrial gearboxes.***



## Product details:

- Catalog number: QAF08A108ST
- SKU: 5986467
- Price: ***$343.45*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Timken](https://www.mrosupply.com/brands/timken/)
- Category: 
    - [4-Bolt Flange](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-roller-bearings/flanged-mounted-bearings/4-bolt-flange/)
    - [Flanged Mounted Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-roller-bearings/flanged-mounted-bearings/)
    - [Mounted Roller Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-roller-bearings/)
    - [Mounted Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)- View suggested `Dodge` alternative
  [Dodge 071392 EP2B-S2-115R two-bolt pillow block bearing with S-2000 spherical roller insert. Features 1-15/16" bore, set screw locking, cast iron housing, TRIDENT triple-lip seal, and non-expansion (fixed) design for heavy-duty applications. Static load](https://www.mrosupply.com/products/133626/as-markdown/)
- Unit of measure: each
- Returns: Yes


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


## Product attributes;

  
- 0.038 mm Shaft size type: Imperial Y1 - Geometry Factor:2.71 Y2 - Geometry Factor:4.04 e - Geometry Factor:0.25
  

  
- 0.040 mm Shaft Size: 1 1/2 in Shaft Tolerance:0.0015 in
  

  
- 0.065 mm Pre Install Clearance Min: 0.0016 in
  

  
- 12 mm Dimension KA: 1 in
  

  
- 148.3 mm Dimension J (Bolt Size): 0.5 in
  

  
- 25.4 mm Dimension L Exp: 2.98 in
  

  
- 3.8 mm Dimension SA: 2.75 in
  

  
- 60.5 mm Dimension BC: 5.84 in
  

  
- 69.9 mm Eng Internal Radial Clearance - Max: 0.0026 Eng Internal Radial Clearance - Min:0.0016 Engineering group:Mounted Bearing Float:0.050 in
  

  
- 73.7 mm Dimension RA: 0.15 in
  

  
- 75.7 mm Dimension L Fix: 2.9 in
  

  
- Bearing number: 22210 C - Dynamic Load (Basic):26300 lbf 117000 N C0 - Static Load:26600 lbf 118000 N Dimension:2.38 in
  

  
- Bearing Number: 22210
  

  
- Dynamic Load (Basic): 26300 lbf
  

  
- Eng Internal Radial ClearancMax: 0.0026
  

  
- Eng Internal Radial ClearancMin: 0.0016
  

  
- Engineering Group: Mounted Bearing
  

  
- Float: 0.050 in
  

  
- Geometry Factor: 4.04
  

  
- Grease Lubrication - B/C/O Seal: 1800 rpm
  

  
- Grease Lubrication - M/N Seal: 2400 rpm
  

  
- Grease Lubrication - T Seal: 3550 rpm
  

  
- Housing Construction: Four-Bolt Square Flange
  

  
- Locking Style: Single Concentric
  

  
- Oil Lubrication - B/C/O Seal: 1800 rpm
  

  
- Oil Lubrication - M/N Seal: 2400 rpm
  

  
- Oil Lubrication - T Seal: 4200 rpm
  

  
- Pre Install Clearance Max: 0.0026 in
  

  
- Pre Install Clearance Min: 0.0016 in
  

  
- Shaft Size: 1 1/2 in
  

  
- Shaft Size Type: Imperial
  

  
- Shaft Tolerance: 0.0015 in
  

  
- Static Load: 26600 lbf
  
## Product documents / software:

- [Single Concentric Four Bolt Square Flange Block](https://documents.mrosupply.com/product_documents/59/82/5982362/qaf08a108s_UMqCS7K)

## 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.