# Timken 2MM224WI TUM Super Precision Angular Contact Ball Bearing, Triplex Medium Preload, ABEC 7 - MROSupply.com

***Timken 2MM224WI TUM is a super precision angular contact ball bearing configured as a triplex set with medium preload (TUM). This ABEC 7 (P4S) precision class bearing is designed for high-rigidity applications such as machine tool spindles, jig borers, and precision grinding equipment.***



## Product details:

- Catalog number: 2MM224WI TUM
- SKU: 5115126
- 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: 
    - [Single Row Angular Contact Bearings](htts://www.mrosupply.com/bearings/ball-bearings/angular-contact-ball-bearings/single-row-angular-contact-bearings/)
    - [Angular Contact Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/angular-contact-ball-bearings/)
    - [Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 35.437 lb
- Returns: Yes


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


## Product attributes;

  
- 1.5748 in C0 - Static Radial Rating (per row): 180100 N
  

  
- 4.7244 in World part number: 7224C-T-P4S-TUM
  

  
- 40500 lbf C1 ISO - Dynamic Radial Rating (per row): 191000 N
  

  
- 42900 lbf Cage type: CR - Phenolic Outer Land Riding Cage Contact angle:15 Design units:Metric Inner ring backing diameter:137.3 mm
  

  
- 5.41 in Limiting Speed (Grease) (per row): 6700 rpm Limiting speed (oil):13400 RPM Manufacturing part number:2MM224WI TUM O.D. (in):215 mm 8.4646 Outer ring backing diameter:198.5 mm
  

  
- 7.820 in Precision rating: ISO P4S (ABEC 7/9) Rows per set:Triplex Total width:120 mm
  

  
- Ball type: Steel Bearing width:40 mm
  

  
- Ball Type: STEEL
  

  
- Bearing Width: 40 mm 1.5748 in
  

  
- Bore: 120 mm
  

  
- C0 - Static Radial Rating (per row): 180100 N 40500 lbf
  

  
- C1 ISO - Dynamic Radial Rating (per row): 191000 N 42900 lbf
  

  
- Cage Type: CR - Phenolic Outer Land Riding Cage
  

  
- Ce - Dynamic Radial Rating (per row): 210100 N 47200 lbf
  

  
- Contact Angle: 15 º
  

  
- d - Bore: 120 mm
  

  
- D - Outer Diameter: 215 mm 8.4646 in
  

  
- da - Inner Ring Backing Diameter: 137.3 mm 5.41 in
  

  
- Da - Outer Ring Backing Diameter: 198.5 mm 7.820 in
  

  
- Design Units: Metric
  

  
- DOuter Ring Backing Diameter: 198.5 mm 7.820 in
  

  
- Dynamic Radial Rating (per row): 210100 N 47200 lbf
  

  
- I.D.: 120 mm
  

  
- Inner Ring 'To Clear' Radius: 2.1 mm 0.079 in
  

  
- Inner Ring Backing Diameter: 137.3 mm 5.41 in
  

  
- Limiting Speed (Grease) (per row): 6700 rpm
  

  
- Limiting Speed (Oil): 13400 rpm
  

  
- Manufacturing Part Number: 2MM224WI TUM
  

  
- Outer Diameter: 215 mm 8.4646 in
  

  
- Outer Ring 'To Clear' Radius: 2.1 mm 0.079 in
  

  
- Precision Rating: ISO P4S (ABEC 7/9)
  

  
- R - Inner Ring "To Clear" Radius: 2.1 mm 0.079 in
  

  
- r - Outer Ring "To Clear" Radius: 2.1 mm 0.079 in
  

  
- Rows per Set: Triplex
  

  
- Static Radial Rating (per row): 180100 N 40500 lbf
  

  
- Total Width: 120 mm 4.7244 in
  

  
- World Part Number: 7224C-T-P4S-TUM
  
## Product documents / software:

- [Catalog](https://documents.mrosupply.com/product_documents/50/60/5060627/Machine-Tool-Applications-Catalog_R9rBZA3.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.


- What is the difference between deep groove and angular contact ball bearings?: Deep groove ball bearings are the most common type. They’re designed to handle mainly radial loads, but they can also take some axial load in both directions. They’re simple, versatile, and used in everything from motors to conveyors.
Angular contact ball bearings are built for combined loads, especially where there’s significant axial force in one direction. They’re often used in pairs and are common in higher precision or higher load applications like pumps and gearboxes.
If your load is mostly radial, go deep groove. If axial load matters more, angular contact is usually the better choice.