# Martin 40BS28 1 Bored-to-Size Sprocket #40 Chain 1/2" Pitch 28 Teeth 1" Bore Steel Type B Finished Bore - MROSupply.com

***Martin 40BS28 1 is a Bored-to-Size (Type B Finished Bore) roller chain sprocket for #40 chain (1/2" pitch). It features 28 teeth, a 1" finished bore with keyway and setscrews, and a 4.738" outside diameter. Constructed from steel, this sprocket is suitable for power transmission applications requiring a single-strand ANSI #40 chain drive.***



## Product details:

- Catalog number: 40BS28 1
- SKU: 261563
- Price: ***$81.41*** 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 B Finished Bore Sprockets](htts://www.mrosupply.com/chains-sprockets/sprockets/roller-chain-sprockets/finished-bore-sprockets/type-b-finished-bore-sprockets/)
    - [Finished Bore Sprockets](htts://www.mrosupply.com/chains-sprockets/sprockets/roller-chain-sprockets/finished-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: 2.560 lb
- Technicall support: contact supplier for technical support on 323-728-8117


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


## Product attributes;

  
- Bore: 1"
  

  
- Material: Steel
  

  
- Number Of Teeth: 28
  

  
- Outside Dia: 4.738"
  

  
- Pitch: 0.500 in.
  

  
- Teeth: 28
  

## Suggested products:
- [Martin 40A14 Type A (Plain Bore) roller chain sprocket for #40 chain (1/2 in. pitch) with 14 teeth. Flat plate design with no hub, made of steel. Outside diameter: 2.491". Compatible with ANSI B29.1 standard chain. Direct replacement](https://www.mrosupply.com/products/261214/as-markdown/)
- [Renold Jeffrey 40-1R PREMIUM ROLLER CHAIN 10 RIVETED](https://www.mrosupply.com/products/2182855/as-markdown/)
- [Martin 40A13 Type A (Plain Bore) roller chain sprocket for #40 chain (1/2" pitch). 13 teeth, flat plate design with no hub. Steel construction. Outside diameter: 2.329".](https://www.mrosupply.com/products/261213/as-markdown/)
- [Martin 40BS28 1 is a Bored-to-Size (Type B Finished Bore) roller chain sprocket for #40 chain (1/2" pitch). It features 28 teeth, a 1" finished bore with keyway and setscrews, and a 4.738" outside diameter. Constructed from steel, this sprocket is suitable for power transmission applications requiring a single-strand ANSI #40 chain drive.](https://www.mrosupply.com/products/261563/as-markdown/)
- [Martin 40A112 Type A (Plain Bore) roller chain sprocket for #40 chain (1/2" pitch). 112 teeth, flat plate design with no hub. Steel construction, outside diameter 18.121".](https://www.mrosupply.com/products/261211/as-markdown/)

## Product's reviews:
- Service manager - on time.. great company thanks john gorth
- Nice sprocket - sprocket is very nice.
- Great prices and quality products - Your products are not only affordable, but they are also priced very fairly and competitively & always ship out pretty quickly. You have gained a new regular customer and stolen us from one of our regular distributors without even trying. Thank you for being awesome! Not to mention the free shipping over $100 perk is super appreciated as we not only are saving money per item, but we are also able to buy in bulk without the additional burden of freight/shipping costs.
THANK YOU!! :)
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