# Martin 20A55 Metric A-Plate Roller Chain Sprocket for 20B Chain 55 Teeth 31.75 mm Pitch Steel - MROSupply.com

***Martin 20A55 Metric A-Plate roller chain sprocket for 20B (ISO 606/DIN 8187 metric) chain, 31.75 mm pitch, 55 teeth. Steel flat plate design with no hub. Outside diameter 576.789 mm, pitch diameter 556.151 mm. For use with 20B British Standard roller chain in industrial power transmission applications.***



## Product details:

- Catalog number: 20A55
- SKU: 259895
- Price: ***$887.12*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Martin Sprocket](https://www.mrosupply.com/brands/martin-sprocket/)
- Category: 
    - [Type A Plain Bore Sprockets](htts://www.mrosupply.com/chains-sprockets/sprockets/roller-chain-sprockets/plain-bore-sprockets/type-a-plain-bore-sprockets/)
    - [Plain Bore Sprockets](htts://www.mrosupply.com/chains-sprockets/sprockets/roller-chain-sprockets/plain-bore-sprockets/)
    - [Roller Chain Sprockets](htts://www.mrosupply.com/chains-sprockets/sprockets/roller-chain-sprockets/)
    - [Sprockets](htts://www.mrosupply.com/chains-sprockets/sprockets/)
    - [Chains & Sprockets](htts://www.mrosupply.com/chains-sprockets/)
- Unit of measure: each
- Weight: 66.400 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: 55
  

  
- Outside Dia: 576.789 mm
  

  
- Pitch: 31.750 mm
  

  
- Pitch Diameter: 556.151 mm
  


## Product's reviews:
- Met all expectations - Met all expectations for availability, price, delivery, ease of online store use, and efficient online store.
- 21 tooth 12 dp spur gear - The 21 tooth 12 DP gear I bought arrived very quickly.
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!!!
- Good stock - I was pleased with the help of customer service to answer my questions concerning inventory and how quickly I received my product. Thank you.
- Works great - Works perfect and made my gokart way faster