# Martin 140BTB21 Taper-Lock Sprocket #140 Chain 1-3/4" Pitch 21 Teeth for 3020 Bushing Steel 12.660" OD - MROSupply.com

***Martin 140BTB21 Taper-Lock sprocket for #140 roller chain (1-3/4" pitch) with 21 teeth. Steel construction with 12.660" outside diameter. Requires 3020 series taper bushing (sold separately). Designed for heavy-duty power transmission drives.***



## Product details:

- Catalog number: 140BTB21
- SKU: 259386
- Price: ***$591.81*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Martin Sprocket](https://www.mrosupply.com/brands/martin-sprocket/)
- Category: 
    - [Taper-Lock TL Sprockets](htts://www.mrosupply.com/chains-sprockets/sprockets/roller-chain-sprockets/taper-lock-tl-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: 24.000 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: 12.660"
  

  
- Pitch: 1.750 in.
  

## Suggested products:
- [HKK RC140R1A (alt. 140R10) is a 140 size single strand standard ANSI roller chain with 1-3/4" pitch, supplied on a 10 ft reel. It features solid bushings and rollers, pin diameter 0.500", plate height 1.610", roller width 1", plate thickness 0.219", roller diameter 1.000". Average ultimate strength 48,800 lbs, maximum allowable load 11,740 lbs. ANSI B29.1 compliant, made in Japan.](https://www.mrosupply.com/products/2265731/as-markdown/)
- [Martin 140BTB21 Taper-Lock sprocket for #140 roller chain (1-3/4" pitch) with 21 teeth. Steel construction with 12.660" outside diameter. Requires 3020 series taper bushing (sold separately). Designed for heavy-duty power transmission drives.](https://www.mrosupply.com/products/259386/as-markdown/)
- [Martin 140A14 Type A plain bore roller chain sprocket for #140 chain, 1-3/4" pitch, 14 teeth, 8.717" outside diameter, steel construction. Flat plate design with no hub for lightweight applications.](https://www.mrosupply.com/products/259343/as-markdown/)
- [Martin 140A12 Type A plain bore roller chain sprocket for #140 chain, 1-3/4" pitch, 12 teeth, 7.581" outside diameter. Flat plate design with no hub, steel construction. Suitable for applications requiring a lightweight, compact sprocket that can be bored to size.](https://www.mrosupply.com/products/259341/as-markdown/)
- [Martin 140A15 Type A plain bore roller chain sprocket for #140 chain with 1-3/4" pitch, 15 teeth, and 9.283" outside diameter. Steel flat plate design with no hub, suitable for light-duty applications where weight is a concern.](https://www.mrosupply.com/products/259344/as-markdown/)

## Product's reviews:
- Service manager - on time.. great company thanks john gorth
- Martin s1036 gears - Great Item, for a great deal!
- 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!! :)
- Bushing - PROMPT SHIPPING AND WELL PACKAGED. THANKS