# Timken QAATP11A203SEM Spherical Roller Take-Up Bearing Unit, Frame 11, Adapter Mount - MROSupply.com

***Timken QAATP11A203SEM is a spherical roller take-up bearing unit. This adapter-mounted housed unit features a frame size 11 and is designed for adjustable tension applications in conveyors and similar industrial equipment. The unit incorporates a spherical roller bearing insert for self-alignment and high load capacity.***



## Product details:

- Catalog number: QAATP11A203SEM
- SKU: 5988033
- Price: ***$501.55*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Timken](https://www.mrosupply.com/brands/timken/)
- Category: 
    - [Take-Up Bearing Units](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-roller-bearings/take-up-bearings/take-up-bearing-units/)
    - [Take-Up Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-roller-bearings/take-up-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;

  
- 0.038 mm Shaft size type: Imperial Y1 - Geometry Factor:2.95 Y2 - Geometry Factor:4.40 e - Geometry Factor:0.23
  

  
- 0.040 mm Shaft Size: 2 3/16 in Shaft Tolerance:0.0015 in
  

  
- 0.065 mm Pre Install Clearance Min: 0.0016 in
  

  
- 101.6 mm Dimension U: 0.81 in
  

  
- 13.1 mm Dimension TAA: 4 in
  

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

  
- 26.9 mm Dimension RAA: 0.51 in
  

  
- 72.8 mm Dimension A1: 3.25 in
  

  
- 82.6 mm Dimension Q: 1.06 in
  

  
- Bearing number: 22211 C - Dynamic Load (Basic):31400 lbf 140000 N C0 - Static Load:31900 lbf 142000 N Dimension:2.87 in
  

  
- Bearing Number: 22211
  

  
- C - Dynamic Load (Basic): 31400 lbf 140000 N
  

  
- C0 - Static Load: 31900 lbf 142000 N
  

  
- Dimension A1: 3.25 in 82.6 mm
  

  
- Dimension B: 2.87 in 72.8 mm
  

  
- Dimension C: 3.25 in 82.6 mm
  

  
- Dimension D: 7.63 in 193.8 mm
  

  
- Dimension E: 6.25 in 158.8 mm
  

  
- Dimension F: 1.94 in 49.3 mm
  

  
- Dimension G: 2.75 in 69.9 mm
  

  
- Dimension H: 3.5 in 88.9 mm
  

  
- Dimension J: 1.75 in 44.4 mm
  

  
- Dimension L: 7.5 in 190.6 mm
  

  
- Dimension M: 2 in 50.8 mm
  

  
- Dimension N: 3.49 in 88.5 mm
  

  
- Dimension P: 7 in 177.8 mm
  

  
- Dimension Q: 1.06 in 26.9 mm
  

  
- Dimension RAA: 0.51 in 13.1 mm
  

  
- Dimension S: 1.12 in 28.4 mm
  

  
- Dimension TAA: 4 in 101.6 mm
  

  
- Dimension U: 0.81 in 20.6 mm
  

  
- Dynamic Load (Basic): 31400 lbf
  

  
- e - Geometry Factor: 0.23
  

  
- Eng Internal Radial Clearance - Max: 0.0026
  

  
- Eng Internal Radial Clearance - Min: 0.0016
  

  
- Eng Internal Radial ClearancMax: 0.0026
  

  
- Eng Internal Radial ClearancMin: 0.0016
  

  
- Engineering Group: Mounted Bearing
  

  
- Float: 0.050 in 1.270 mm
  

  
- Full Timken Part Number: QAATP11A203SB QAATP11A203SC QAATP11A203SEB QAATP11A203SEC QAATP11A203SEM QAATP11A203SEN QAATP11A203SEO QAATP11A203SET QAATP11A203SM QAATP11A203SN QAATP11A203SO QAATP11A203ST
  

  
- Geometry Factor: 4.4
  

  
- Grease Lubrication - B/C/O Seal: 1600 rpm
  

  
- Grease Lubrication - M/N Seal: 2200 rpm
  

  
- Grease Lubrication - T Seal: 3200 rpm
  

  
- Housing Construction: Top Pull Take-Up
  

  
- Locking Style: Double Concentric
  

  
- Oil Lubrication - B/C/O Seal: 1600 rpm
  

  
- Oil Lubrication - M/N Seal: 2200 rpm
  

  
- Oil Lubrication - T Seal: 3800 rpm
  

  
- Pre Install Clearance Max: 0.0026 in 0.065 mm
  

  
- Pre Install Clearance Min: 0.0016 in 0.040 mm
  

  
- Shaft Size: 2 3/16 in
  

  
- Shaft Size Type: Imperial
  

  
- Shaft Tolerance: 0.0015 in 0.038 mm
  

  
- Static Load: 31900 lbf
  

  
- Y1 - Geometry Factor: 2.95
  

  
- Y2 - Geometry Factor: 4.40
  
## Product documents / software:

- [Double Concentric Top Pull Take Up Block](https://documents.mrosupply.com/product_documents/59/82/5982285/qaatp11a203s_GTUtTWk)

## 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.