# Dodge 2MB78X1-1/4 B/5L Section Single-Groove V-Belt Sheave 7.8" OD 1-1/4" Finished Bore - MROSupply.com

***Dodge 2MB78X1-1/4 B/5L section single-groove V-belt sheave with 7.8-inch outside diameter and 1-1/4-inch finished bore. Precision-machined cast iron construction for industrial power transmission. Accepts B or 5L V-belts.***



## Product details:

- Catalog number: 2MB78X1-1/4
- SKU: 737237
- Price: ***$129.53*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Dodge](https://www.mrosupply.com/brands/dodge/)
- Category: 
    - [B/5L Section](htts://www.mrosupply.com/sheaves/finished-bore-sheaves/b5l-section/)
    - [Finished Bore Sheaves](htts://www.mrosupply.com/sheaves/finished-bore-sheaves/)
    - [Sheaves](htts://www.mrosupply.com/sheaves/)
- Unit of measure: each
- Weight: 7.800 lb
- Technicall support: contact supplier for technical support on +1-864-284-5700


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


## Product attributes;

  
- Belt Profile: B/5L section
  

  
- Bore Size: 1-1/4" finished bore
  

  
- Groove Count: Single groove
  

  
- Material: Gray cast iron
  

  
- Outside Diameter: 7.8" precision machined
  

  
- Weight: 7.8 lbs
  

## Suggested products:
- [Dodge MB78X1-3/16 single groove fixed bore sheave for B/5L section V-belts, 7.4" pitch diameter, 1-3/16" bore. Machined gray cast iron construction for standard V-belt drives. Light duty rating, 3.9 lb weight.](https://www.mrosupply.com/products/706999/as-markdown/)
- [Dodge MB188X1-7/16 single groove finished bore V-belt sheave with 18.4" outside diameter and 1-7/16" fixed bore. Designed for B/5L section V-belts in light duty applications. Cast iron construction provides durability and reliable power transmission. Weighs 13 lbs.](https://www.mrosupply.com/products/706823/as-markdown/)
- [Dodge MB78X1 B/5L section finished bore V-belt sheave for industrial belt drive applications. Precision-machined gray cast iron construction with fixed bore for direct shaft mounting. Designed for use with B-section classical and 5L-section light-duty V-belts, providing reliable power transmission in HVAC, material handling, and general industrial equipment.](https://www.mrosupply.com/products/706996/as-markdown/)
- [Dodge MB78X1-3/8 finished bore sheave for B and 5L section V-belts, 7.8" outside diameter, 1-3/8" bore. Cast iron construction for industrial power transmission applications requiring precise belt alignment and reliable performance.](https://www.mrosupply.com/products/2249186/as-markdown/)
- [Dodge 2MB78X1-1/8 fixed bore V-belt sheave with 2 grooves for B/5L section belts, 7.4" pitch diameter, 1-1/8" finished bore, and light duty cast iron construction. Suitable for HVAC, agricultural, and general industrial applications.](https://www.mrosupply.com/products/706413/as-markdown/)

## Product's reviews:
- Fast service - Always have the items i need and they come relatively fast!
- Bearings - Correct bearings, came the first time!
- Great price/great product - Shipping was fast and the price was best I could find. Product was new in a the sealed Dodge box. Perfect.
- Dodge paraflex - Good response time, and shipped in time.




## FAQ:

- How does Dodge warranty evaluation work if a product fails?: Failed units go to Dodge's US plants for evaluation — about a week in transit plus one to two weeks of analysis, and you get the findings either way. Warranty covers workmanship and material defects; failures caused by the application (lubrication, installation) fall to the customer, but the failure analysis tells you the root cause so it doesn't repeat.