# Timken QMPX22J408ST Spherical Roller Pillow Block, Frame 22, Setscrew Locking - MROSupply.com

***Timken QMPX22J408ST is a two-bolt pillow block spherical roller mounted unit. This QMPX-series housed bearing features a frame size 22 cast iron housing with setscrew locking for secure shaft attachment. It is designed for heavy-duty industrial applications such as conveyors, fans, and processing equipment where high radial load capacity and misalignment tolerance are required.***



## Product details:

- Catalog number: QMPX22J408ST
- SKU: 5983218
- Price: ***$2,108.33*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Timken](https://www.mrosupply.com/brands/timken/)
- Category: 
    - [2-Bolt Pillow Block Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-roller-bearings/pillow-block-bearings/2-bolt-pillow-block-bearings/)
    - [Pillow Block Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-roller-bearings/pillow-block-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/)
- Unit of measure: each
- Returns: Yes


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


## Product attributes;

  
- 0.075 mm Shaft Size: 4.5000 in Shaft Tolerance:0.0050 in
  

  
- 0.120 mm Pre Install Clearance Min: 0.0030 in
  

  
- 0.127 mm Shaft size type: Imperial Y1 - Geometry Factor:2.73 Y2 - Geometry Factor:4.06 e - Geometry Factor:0.25
  

  
- 146.1 mm Dimension D Max: 15.56 in
  

  
- 2.3 mm Eng Internal Radial Clearance - Max: 0.0047 Eng Internal Radial Clearance - Min:0.0030 Engineering group:Mounted Bearing Float:0.083 in
  

  
- 24 mm Dimension R: 0.09 in
  

  
- 354.1 mm Dimension J (Bolt Size): 1 in
  

  
- 395.2 mm Dimension D Min: 13.94 in
  

  
- Bearing number: 22222 C - Dynamic Load (Basic):125000 lbf 555000 N C0 - Static Load:147000 lbf 653000 N Dimension:5.75 in
  

  
- Bearing Number: 22222
  

  
- C - Dynamic Load (Basic): 125000 lbf 555000 N
  

  
- C0 - Static Load: 147000 lbf 653000 N
  

  
- Dimension A: 5.75 in 146.1 mm
  

  
- Dimension B: 10.78 in 273.8 mm
  

  
- Dimension C: 6.3 in 160 mm
  

  
- Dimension D Max: 15.56 in 395.2 mm
  

  
- Dimension D Min: 13.94 in 354.1 mm
  

  
- Dimension E: 4 in 101.6 mm
  

  
- Dimension F: 19 in 469.9 mm
  

  
- Dimension G: 6.25 in 158.8 mm
  

  
- Dimension H: 1.8 in 45.7 mm
  

  
- Dimension J (Bolt Size): 1 in 24 mm
  

  
- Dimension K: 1.83 in 46.5 mm
  

  
- Dimension L: 6.74 in 171.2 mm
  

  
- Dimension M: 3.7 in 94 mm
  

  
- Dimension R: 0.09 in 2.3 mm
  

  
- Dimension S: 5.53 in 140.5 mm
  

  
- Dynamic Load (Basic): 125000 lbf
  

  
- e - Geometry Factor: 0.25
  

  
- Eng Internal Radial Clearance - Max: 0.0047
  

  
- Eng Internal Radial Clearance - Min: 0.0030
  

  
- Eng Internal Radial ClearancMax: 0.0047
  

  
- Eng Internal Radial ClearancMin: 0.003
  

  
- Engineering Group: Mounted Bearing
  

  
- Float: 0.083 in 2.108 mm
  

  
- Full Timken Part Number: QMPX22J408SB QMPX22J408SC QMPX22J408SEB QMPX22J408SEC QMPX22J408SEM QMPX22J408SEN QMPX22J408SEO QMPX22J408SET QMPX22J408SM QMPX22J408SN QMPX22J408SO QMPX22J408ST
  

  
- Geometry Factor: 4.06
  

  
- Grease Lubrication - B/C/O Seal: 600 rpm
  

  
- Grease Lubrication - M/N Seal: 900 rpm
  

  
- Grease Lubrication - T Seal: 1200 rpm
  

  
- Housing Construction: Four-Bolt Pillow Block
  

  
- Locking Style: Eccentric
  

  
- Oil Lubrication - B/C/O Seal: 600 rpm
  

  
- Oil Lubrication - M/N Seal: 900 rpm
  

  
- Oil Lubrication - T Seal: 1700 rpm
  

  
- Pre Install Clearance Max: 0.0047 in 0.120 mm
  

  
- Pre Install Clearance Min: 0.0030 in 0.075 mm
  

  
- Shaft Size: 4 1/2 in
  

  
- Shaft Size Type: Imperial
  

  
- Shaft Tolerance: 0.0050 in 0.127 mm
  

  
- Static Load: 147000 lbf
  

  
- Y1 - Geometry Factor: 2.73
  

  
- Y2 - Geometry Factor: 4.06
  
## Product documents / software:

- [Eccentric Four Bolt Pillow Block](https://documents.mrosupply.com/product_documents/59/83/5983218/qmpx22j408s_FCiO3Au)

## 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.