# Martin 4 B 300 E V-Belt Sheave 4-Groove B-Section 30.0" Pitch Diameter E QD Bushing Cast Iron - MROSupply.com

***Martin 4 B 300 E conventional QD sheave for B-section (5L) V-belts. 4 grooves, 30.0" pitch diameter, cast iron construction. Requires industry-interchangeable E QD bushing (sold separately) for shaft mounting.***



## Product details:

- Catalog number: 4 B 300 E
- SKU: 254910
- Price: ***$1,131.86*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Martin Sprocket](https://www.mrosupply.com/brands/martin-sprocket/)
- Category: 
    - [B/5L Section](htts://www.mrosupply.com/sheaves/quick-detachable-bushed-bore-sheaves/b5l-section/)
    - [Quick Detachable Bushed Bore Sheaves](htts://www.mrosupply.com/sheaves/quick-detachable-bushed-bore-sheaves/)
    - [Sheaves](htts://www.mrosupply.com/sheaves/)
- Unit of measure: each
- Weight: 95.000 lb
- Technicall support: contact supplier for technical support on 323-728-8117


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


## Product attributes;

  
- Material: Cast Iron
  

  
- Outside Dia: 30.350"
  


## Product's reviews:
- Perfect - Perfect replacement part, Good purchase experience. I would use MRO again.
- 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!! :)
- 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
- Nice sprocket - sprocket is very nice.