# Martin S321 Steel Spur Gear 3 DP 21 Teeth 14.5-Degree Pressure Angle - MROSupply.com

***Martin S321 steel spur gear with 3 diametral pitch, 21 teeth, and 14.5-degree pressure angle. Outside diameter 7.666". Stock spur gear for power transmission applications. Compatible with other 14.5-degree PA gears.***



## Product details:

- Catalog number: S321
- SKU: 251368
- Price: ***$987.08*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Martin Sprocket](https://www.mrosupply.com/brands/martin-sprocket/)
- Category: 
    - [External Tooth Spur Gears](htts://www.mrosupply.com/gears-gear-racks/gears/spur-gears/external-tooth-spur-gears/)
    - [Spur Gears](htts://www.mrosupply.com/gears-gear-racks/gears/spur-gears/)
    - [Gears](htts://www.mrosupply.com/gears-gear-racks/gears/)
    - [Gears & Gear Racks](htts://www.mrosupply.com/gears-gear-racks/)
- Unit of measure: each
- Weight: 30.580 lb
- Technicall support: contact supplier for technical support on 323-728-8117


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


## Product attributes;

  
- Material: Steel
  

  
- Number Of Teeth: 21
  

  
- Outside Dia: 7.666"
  

## Alternate products to `Martin S321 Steel Spur Gear 3 DP 21 Teeth 14.5-Degree Pressure Angle - MROSupply.com`:
- [Boston Gear 30215197 NO21B steel spur gear with 3 diametral pitch, 21 teeth, and 14.5-degree pressure angle. Designed for general industrial open gearing applications requiring moderate load capacity and smooth operation.](https://www.mrosupply.com/products/35077/as-markdown/)

## Product's reviews:
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THANK YOU!! :)
- Great service - Very quick service part was exactly what I needed to get my skid steer going again great product and I will definitely use this business again