# NTN 6203LU Deep Groove Ball Bearing - 17 mm Bore, Single Sealed (Rubber Contact), Stamped Steel Cage - MROSupply.com

***NTN 6203LU is a 62 series single-row deep groove ball bearing with a 17 mm straight bore. It features a single rubber contact seal (LU) on one side and a stamped steel cage. Designed for radial loads in electric motors, pumps, fans, and general rotating machinery.***



## Product details:

- Catalog number: 6203LU
- SKU: 279875
- Price: ***$15.89*** Each
- Quantity: This vendor has a minimum order quantity of
5.Order minimum ($) may be applied.
Add desired QTY to cart and proceed to checkout to view minimum'

- Brand Minimum Order Quantity - 5
(This is the minimum order quantity if ordering this unit alone
from the vendor. Adding other products from the same vendor will reduce
the overall requirement. If adding multiple products from same vendor,
please add all products to cart to see total minimum.)
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [NTN Bearing](https://www.mrosupply.com/brands/ntn-bearing/)
- Category: 
    - [6200 Series Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/6200-series-ball-bearings/)
    - [Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 0.136 lb


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


## Product attributes;

  
- B (in): 0.4724
  

  
- Ball Material: Steel
  

  
- Ball material: Steel
  

  
- Bore Type: Round
  

  
- Bore type: Round
  

  
- Cage Material: Steel
  

  
- Cage material: Steel
  

  
- Cage Type: Pressed
  

  
- Cage type: Pressed
  

  
- Configuration: One
  

  
- D (in): 1.5748
  

  
- d (in): 0.6693
  

  
- da max: 0.9055 in
  

  
- Da max: 1.4173 in
  

  
- da min: 0.8268 in
  

  
- Dynamic Load Rating: 2380 lbf
  

  
- Dynamic load rating: 2380 lbf
  

  
- Enclosure: Single Sealed
  

  
- Factor: 36
  

  
- I.D.: 17 mm
  

  
- Limiting Speed - Grease: 12000 RPM
  

  
- Limiting speed - grease: 12000 RPM
  

  
- Material: High carbon chrome steel
  

  
- O.D.: 40 mm
  

  
- Operating Temperature Range: -40 to 250 °F
  

  
- Operating temperature range: -40 to 250 ºF
  

  
- Precision: ISO class 0
  

  
- r (in): 0.0236
  

  
- r1: 0.0197 in
  

  
- Radial Internal Clearance: CN
  

  
- Radial internal clearance: CN
  

  
- ras max: 0.0236 in
  

  
- Seal Material: Nitrile Rubber
  

  
- Seal material: Nitrile rubber
  

  
- Seal Type: Contact
  

  
- Seal type: Contact
  

  
- Static Load Rating: 1030 lbf
  

  
- Static load rating: 1030 lbf
  

  
- Type: Deep Groove Ball Bearing
  
## Product documents / software:

- [Drawing](https://documents.mrosupply.com/product_documents/50/46/5046617/1152_S_rW0Ma3o.png)
## Alternate products to `NTN 6203LU Deep Groove Ball Bearing - 17 mm Bore, Single Sealed (Rubber Contact), Stamped Steel Cage - MROSupply.com`:
- [FAG 6203RSR deep groove ball bearing with 17mm bore, 40mm OD, and 12mm width. Double rubber seal (RSR) on both sides for effective contamination protection. Ball guided cage ensures smooth operation. Suitable for high-speed applications requiring low friction and reliable sealing.](https://www.mrosupply.com/products/2175461/as-markdown/)
- [SKF 6203-RSH/C3 deep groove ball bearing, 17mm bore, sealed on one side with a low-friction NBR contact seal, C3 clearance. Sheet metal cage, bearing steel construction. Suitable for electric motors, pumps, and general industrial applications.](https://www.mrosupply.com/products/319871/as-markdown/)
- [SKF 6203-RSH deep groove ball bearing, 17mm bore, 1.575 in OD, sealed on one side with a low-friction NBR contact seal. Features a sheet metal cage and normal internal clearance. Suitable for electric motors, pumps, and general industrial applications.](https://www.mrosupply.com/products/319872/as-markdown/)
- [FAG 6203-C-HRS deep groove ball bearing with 17mm bore. Generation C design with single seal and ball guided cage. Suitable for high-speed applications requiring low friction and reliable sealing.](https://www.mrosupply.com/products/2175457/as-markdown/)
- [FAG 6203RSR.C3 deep groove ball bearing with 17mm bore. Features rubber seal on one side (RSR), C3 internal clearance, and a ball guided cage. Suitable for high-speed applications requiring reduced vibration and noise. Precision German engineering from Schaeffler.](https://www.mrosupply.com/products/2175462/as-markdown/)
- [NTN 6203LUC3 is a 62 series single-row deep groove ball bearing with a 17 mm straight bore. It features a single rubber contact seal (LU) on one side, a stamped steel cage, and C3 clearance. Suitable for electric motors, pumps, and general rotating machinery.](https://www.mrosupply.com/products/5044824/as-markdown/)
- [FAG 6203-C-HRS-C3 deep groove ball bearing with 17mm bore, 40mm OD, and 12mm width. Generation C design with ball-guided cage. Single sealed (HRS) on one side for contamination protection. C3 internal clearance accommodates thermal expansion. Suitable for high-speed applications requiring low friction and quiet operation.](https://www.mrosupply.com/products/2175458/as-markdown/)






## 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 are the dimensions and typical uses of a 6200 series ball bearing?: A standard 6200 ball bearing has:
• 10 mm bore
• 30 mm outer diameter
• 9 mm width
The 6200 series sits within the deep groove ball bearing family and is designed for light to moderate loads at relatively high speeds.
You’ll typically find them in electric motors, small gearboxes, pumps, and general industrial equipment. They’re popular because they’re compact, widely available, and cost effective.
Different variants exist such as sealed, shielded, or high clearance versions, depending on the application.


- 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.