# Martin 140B12 Type B Plain Bore Sprocket #140 Chain 12 Teeth 1-3/4" Pitch Steel - MROSupply.com

***Martin 140B12 Type B plain bore roller chain sprocket for #140 chain (1-3/4" pitch), 12 teeth, 7.581" outside diameter. Steel construction with hub on one side. Requires finishing to minimum plain bore size.***



## Product details:

- Catalog number: 140B12
- SKU: 259391
- Price: ***$317.78*** 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 Plain Bore Sprockets](htts://www.mrosupply.com/chains-sprockets/sprockets/roller-chain-sprockets/plain-bore-sprockets/type-b-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: 13.410 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: 12
  

  
- Outside Dia: 7.581"
  

  
- Pitch: 1.750 in.
  

## Suggested products:
- [HKK RC140R1A 140R10 140 single strand standard ANSI roller chain with 1-3/4" pitch, supplied on a 10 ft reel. 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 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 140A13 Type A plain bore roller chain sprocket for #140 chain with 1-3/4" pitch, 13 teeth, and 8.150" outside diameter. Steel construction with flat plate design and no hub, suitable for light-duty applications. Compatible with ANSI B29.1 standard roller chain.](https://www.mrosupply.com/products/259342/as-markdown/)
- [Martin 140A11 Type A plain bore roller chain sprocket for #140 chain with 1-3/4" pitch, 11 teeth, and 7.010" outside diameter. Steel construction with flat plate design and no hub. Suitable for applications requiring a lightweight, simple sprocket configuration.](https://www.mrosupply.com/products/259340/as-markdown/)
- [Martin 140B12 Type B plain bore roller chain sprocket for #140 chain (1-3/4" pitch), 12 teeth, 7.581" outside diameter. Steel construction with hub on one side. Requires finishing to minimum plain bore size.](https://www.mrosupply.com/products/259391/as-markdown/)

## Product's reviews:
- 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!!!
- Martin s1036 gears - Great Item, for a great deal!
- Great service and selection - I was very pleased to find this on the shelf. The price was fair, and the delivery was prompt.
I will do business again with MRO
- Perfect - Perfect replacement part, Good purchase experience. I would use MRO again.