# Timken 3MM9100WI TUL Super Precision Angular Contact Ball Bearing, Triplex Light Preload, P4S - MROSupply.com

***Timken 3MM9100WI TUL is a super precision angular contact ball bearing configured as a triplex set with light preload (TUL). This P4S-class bearing meets ABEC 7/9 precision standards for high-speed, high-rigidity applications such as machine tool spindles, precision grinders, and jig borers. The triplex arrangement provides exceptional axial load capacity and rotational accuracy.***



## Product details:

- Catalog number: 3MM9100WI TUL
- SKU: 5081067
- 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: 0.119 lb
- Returns: Yes


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


## Product attributes;

  
- Ball Type: STEEL
  

  
- Bearing Width: 8 mm 0.3150 in
  

  
- Bore: 10 mm
  

  
- C0 - Static Radial Rating (per row): 2140 N 480 lbf
  

  
- C1 ISO - Dynamic Radial Rating (per row): 4780 N 1070 lbf
  

  
- Cage Type: CR - Phenolic Outer Land Riding Cage
  

  
- Ce - Dynamic Radial Rating (per row): 5300 N 1190 lbf
  

  
- Contact Angle: 25 º
  

  
- d - Bore: 10 mm
  

  
- D - Outer Diameter: 26 mm 1.0236 in
  

  
- da - Inner Ring Backing Diameter: 13.3 mm 0.530 in
  

  
- Da - Outer Ring Backing Diameter: 23.2 mm 0.920 in
  

  
- Design Units: Metric
  

  
- DOuter Ring Backing Diameter: 23.2 mm 0.920 in
  

  
- Dynamic Radial Rating (per row): 5300 N 1190 lbf
  

  
- Inner Ring 'To Clear' Radius: 0.30 mm 0.012 in
  

  
- Inner Ring Backing Diameter: 13.3 mm 0.530 in
  

  
- Limiting Speed (Grease) (per row): 61700 rpm
  

  
- Limiting Speed (Oil): 123400 rpm
  

  
- Manufacturing Part Number: 3MM9100WI TUL
  

  
- Outer Diameter: 26 mm 1.0236 in
  

  
- Outer Ring 'To Clear' Radius: 0.3 mm 0.012 in
  

  
- R - Inner Ring "To Clear" Radius: 0.30 mm 0.012 in
  

  
- r - Outer Ring "To Clear" Radius: 0.3 mm 0.012 in
  

  
- Rows per Set: Triplex
  

  
- Static Radial Rating (per row): 2140 N 480 lbf
  

  
- Total Width: 24 mm 0.945 in
  

  
- World Part Number: 7000E-T-P4S-TUL
  
## 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.