# Martin S621 Steel Spur Gear 6 DP 21 Teeth 14.5-Degree Pressure Angle 3.833" OD - MROSupply.com

***Martin S621 steel spur gear with 6 diametral pitch, 21 teeth, and 14.5-degree pressure angle. Plain bore design for custom shaft fitting. 3.833" outside diameter. Suitable for power transmission applications requiring 14.5-degree pressure angle gears.***



## Product details:

- Catalog number: S621
- SKU: 251474
- Price: ***$156.92*** 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: 5.100 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: 3.833"
  

## Alternate products to `Martin S621 Steel Spur Gear 6 DP 21 Teeth 14.5-Degree Pressure Angle 3.833" OD - MROSupply.com`:
- [Boston Gear 30215174 NJ21B steel spur gear with 6 diametral pitch, 21 teeth, and 14.5 degree pressure angle. This bored spur gear is part of the NJ series for general industrial open gearing applications.](https://www.mrosupply.com/products/35054/as-markdown/)

## Product's reviews:
- Works great - Works perfect and made my gokart way faster
- Met all expectations - Met all expectations for availability, price, delivery, ease of online store use, and efficient online store.
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It was exactly what I needed to fix my RV slide out.
I had to machine it to fit, but I knew that when I ordered it.
VERY SATISFIED!!!
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