# Timken 2MM9124WI TUH Super Precision Angular Contact Ball Bearing, Triplex Heavy Preload, P4S/ABEC 7 - MROSupply.com

***Timken 2MM9124WI TUH is a super precision angular contact ball bearing configured as a triplex set with heavy preload (TUH). This P4S-grade bearing meets ABEC 7/9 precision standards for machine tool spindles, grinders, and high-speed applications requiring extreme rigidity and minimal runout. The triplex arrangement provides high axial and radial load capacity in a compact footprint.***



## Product details:

- Catalog number: 2MM9124WI TUH
- SKU: 5081218
- 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: 14.418 lb
- Returns: Yes


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


## Product attributes;

  
- 1.1024 in C0 - Static Radial Rating (per row): 108500 N
  

  
- 22700 lbf Cage type: CR - Phenolic Outer Land Riding Cage Contact angle:15 Design units:Metric Inner ring backing diameter:132.5 mm
  

  
- 24400 lbf C1 ISO - Dynamic Radial Rating (per row): 101000 N
  

  
- 3.3072 in World part number: 7024C-T-P4S-TUH
  

  
- 5.220 in Limiting Speed (Grease) (per row): 6900 rpm Limiting speed (oil):13800 RPM Manufacturing part number:2MM9124WI TUH O.D. (in):180 mm 7.0866 Outer ring backing diameter:168.3 mm
  

  
- 6.630 in Precision rating: ISO P4S (ABEC 7/9) Rows per set:Triplex Total width:84 mm
  

  
- Ball type: Steel Bearing width:28 mm
  

  
- Ball Type: STEEL
  

  
- Bearing Width: 28 mm 1.1024 in
  

  
- Bore: 120 mm
  

  
- C0 - Static Radial Rating (per row): 108500 N 24400 lbf
  

  
- C1 ISO - Dynamic Radial Rating (per row): 101000 N 22700 lbf
  

  
- Cage Type: CR - Phenolic Outer Land Riding Cage
  

  
- Ce - Dynamic Radial Rating (per row): 111200 N 25000 lbf
  

  
- Contact Angle: 15 º
  

  
- d - Bore: 120 mm
  

  
- D - Outer Diameter: 180 mm 7.0866 in
  

  
- da - Inner Ring Backing Diameter: 132.5 mm 5.220 in
  

  
- Da - Outer Ring Backing Diameter: 168.3 mm 6.630 in
  

  
- Design Units: Metric
  

  
- DOuter Ring Backing Diameter: 168.3 mm 6.630 in
  

  
- Dynamic Radial Rating (per row): 111200 N 25000 lbf
  

  
- I.D.: 120 mm
  

  
- Inner Ring 'To Clear' Radius: 2 mm 0.079 in
  

  
- Inner Ring Backing Diameter: 132.5 mm 5.220 in
  

  
- Limiting Speed (Grease) (per row): 6900 rpm
  

  
- Limiting Speed (Oil): 13800 rpm
  

  
- Manufacturing Part Number: 2MM9124WI TUH
  

  
- Outer Diameter: 180 mm 7.0866 in
  

  
- Outer Ring 'To Clear' Radius: 2 mm 0.079 in
  

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

  
- R - Inner Ring "To Clear" Radius: 2 mm 0.079 in
  

  
- r - Outer Ring "To Clear" Radius: 2 mm 0.079 in
  

  
- Rows per Set: Triplex
  

  
- Static Radial Rating (per row): 108500 N 24400 lbf
  

  
- Total Width: 84 mm 3.3072 in
  

  
- World Part Number: 7024C-T-P4S-TUH
  
## 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.