# PTI M3B21 Metric Spur Gear - Module 3, 21 Teeth, Type B Hub - MROSupply.com

***PTI M3B21 metric spur gear with module 3, 21 teeth, and Type B hub. Suitable for metric power transmission applications requiring precise tooth engagement and reliable performance.***



## Product details:

- Catalog number: M3B21
- SKU: 2200894
- Price: ***$49.03*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [PTI](https://www.mrosupply.com/brands/pti/)
- Category: 
    - [External Tooth Spur Gears](htts://www.mrosupply.com/gears-gear-racks/gears/spur-gears/external-tooth-spur-gears/)
    - [Spur Gears](htts://www.mrosupply.com/gears-gear-racks/gears/spur-gears/)
    - [Gears](htts://www.mrosupply.com/gears-gear-racks/gears/)
    - [Gears & Gear Racks](htts://www.mrosupply.com/gears-gear-racks/)
- Unit of measure: each
- Weight: 10.800 lb
- Technicall support: contact supplier for technical support on 704 588 1091


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


## Product documents / software:

- [Drawing](https://documents.mrosupply.com/product_documents/M3/M3B62/S2405_MODULE_3__HUB_TYPE_WEBSITE_OQWTMQi.JPG)

## Product's reviews:
- Thanks - Thanks for the help. I will be ordering again
- Good service - good product - good quality bearings
- Ring roll chain tensioner - easy to install, works great, extends chain life by keeping chain from whipping around. Reduces drive chain noise.