# Martin 40NB19H 1 Needle Bearing Idler Sprocket #40 Chain 1/2" Pitch 19 Teeth 1" Bore Steel - MROSupply.com

***Martin 40NB19H 1 needle bearing idler sprocket for #40 roller chain with 1/2" pitch, 19 teeth, and 1" finished bore with keyway and setscrews. Steel construction with sealed needle bearing for tensioning or guiding roller chain drives. 3.300" outside diameter.***



## Product details:

- Catalog number: 40NB19H 1
- SKU: 262063
- Price: ***$113.75*** 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 Idler Sprockets](htts://www.mrosupply.com/chains-sprockets/sprockets/roller-chain-sprockets/idler-sprockets/type-b-idler-sprockets/)
    - [Idler Sprockets](htts://www.mrosupply.com/chains-sprockets/sprockets/roller-chain-sprockets/idler-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: 1.100 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: 19
  

  
- Outside Dia: 3.300"
  

  
- Pitch: 0.500 in.
  

## Alternate products to `Martin 40NB19H 1 Needle Bearing Idler Sprocket #40 Chain 1/2" Pitch 19 Teeth 1" Bore Steel - MROSupply.com`:
- [Browning HN40B19 IDLER steel idler sprocket for #41 ANSI roller chain with 1/2" pitch and 19 teeth. Features a needle bearing for smooth idler operation and a 2.125" shaft length. This single-strand idler sprocket guides or tensions chain in conveyor and power transmission drives.](https://www.mrosupply.com/products/2283460/as-markdown/)

## Product's reviews:
- Nice sprocket - sprocket is very nice.
- Bushing - PROMPT SHIPPING AND WELL PACKAGED. THANKS
- Sprocket lm - Good quality product, arrived on time, will continue to buy from this company
- 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