# SKF / CR Seals 9903 Small Bore Oil Seal - 0.250" Shaft x 0.500" Bore x 0.125" Width NBR - MROSupply.com

***SKF / CR Seals 9903 small bore radial shaft oil seal for 0.250" shaft diameter, 0.500" housing bore, and 0.125" seal width. Features a NBR sealing lip with spring loading for reliable radial contact. Operating temperature: -40°F to 250°F. Used in motors, gearboxes, pumps, and industrial rotating equipment. Prevents lubricant leakage and contaminant ingress.***



## Product details:

- Catalog number: 9903
- SKU: 1898665
- Price: ***$9.52*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 3 days
- Brand: [SKF Seals](https://www.mrosupply.com/brands/skf-seals/)
- Category: 
    - [NBR / Buna-N / Nitrile Double Lip](htts://www.mrosupply.com/seals/oil-seals/double-lip-oil-seals/nbr-buna-n-nitrile-double-lip/)
    - [Double Lip Oil Seals](htts://www.mrosupply.com/seals/oil-seals/double-lip-oil-seals/)
    - [Oil Seals](htts://www.mrosupply.com/seals/oil-seals/)
    - [Seals](htts://www.mrosupply.com/seals/)
- Unit of measure: each
- Weight: 0.039 lb
- Technicall support: contact supplier for technical support on 267-436-6000


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


## Product attributes;

  
- Auxiliary lip: No
  

  
- Design: HM14
  

  
- Housing bore diameter: 40.01 mm, 1.575 in
  

  
- Maximum operating temperature: 100.0 °C, 212.0 °F
  

  
- Maximum operating temperature (°F): 100.0 °C, 212.0
  

  
- Minimum operating temperature: -40.0 °C, -40.0 °F
  

  
- Minimum operating temperature (°F): -40.0 °C, -40.0
  

  
- Permissible circumferential speed: 5.09 m/s
  

  
- Rotational speed: 3827.0 r/min
  

  
- Seal width: 6.35 mm, 0.25 in
  

  
- Sealing lip material: Nitrile rubber (NBR)
  

  
- Shaft diameter: 25.4 mm, 1.0 in
  

  
- Type of outside diameter: Metal-cased
  

  
- Unit system: Inch
  
## Product documents / software:

- [DXF](https://documents.mrosupply.com/product_documents/99/9903/skf_seals_9903_6WJWzsw.dxf)
## Alternate products to `SKF / CR Seals 9903 Small Bore Oil Seal - 0.250" Shaft x 0.500" Bore x 0.125" Width NBR - MROSupply.com`:
- [Dichtomatik 101572TB-H NBR double lip spring loaded oil seal with metal OD case. Designed for rotating shaft applications requiring oil retention and contaminant exclusion. Suitable for shaft diameters of 1.000 in, housing bore diameters of 1.575 in, and widths of 0.250 in. Operating temperature range is -40°F to +250°F (-40°C to +121°C).](https://www.mrosupply.com/products/2816273/as-markdown/)
- [Timken 473380 small bore inch oil seal with nitrile (NBR) double lip and garter spring. Provides primary fluid retention and secondary contamination exclusion for shaft sealing in pumps, motors, and gearboxes. Standard temperature range -40°F to +250°F for general industrial use.](https://www.mrosupply.com/products/5066359/as-markdown/)
- [Nexen 9903 replacement housing for FMCBE-875 series pneumatic clutch or brake units. Designed for air-engaged or spring-engaged configurations, this durable housing encloses internal clutch or brake components. Suitable for industrial motion control and web tension applications requiring reliable component integrity.](https://www.mrosupply.com/products/531500/as-markdown/)

## Product's reviews:
- Great service and product! - Doing boat repairs is trying at best when you are on the hard. While the clock tics by , the dollars add up. Being able to find, order and receive part in a timely fashoin is a tall order and MRO Supply was able to meet all of our needs!
Great job MRO! We'll be back!
- 6119 seals - Fast shipping
- Seals - Fast delivery, very good price
- Great first impression - The site was easy to navigate. I placed the order and I was kept up to date with it’s processing and shipping progress. I would definitely use them again