# Martin 3 B 70 SK 3-Groove B-Section V-Belt Sheave 7.0" Pitch Diameter SK Quick Disconnect Bushing Cast Iron - MROSupply.com

***Martin 3 B 70 SK conventional QD sheave for B-section (5L) V-belts. 3 grooves, 7.0" pitch diameter, cast iron construction. Uses industry-interchangeable SK Quick Disconnect bushing (sold separately) for easy mounting. Outside diameter 7.350", weight 11***



## Product details:

- Catalog number: 3 B 70 SK
- SKU: 254736
- Price: ***$156.30*** 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: 11.000 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: 7.350"
  

## Alternate products to `Martin 3 B 70 SK 3-Groove B-Section V-Belt Sheave 7.0" Pitch Diameter SK Quick Disconnect Bushing Cast Iron - MROSupply.com`:
- [Dodge 455627 3A6.6B7.0-SK split taper bushed V-belt sheave for B/5L section belts. 2-groove design with 6.6" outside diameter, 7.0" pitch diameter. Cast iron construction with SK bushing, 7/16 to 2-5/8" bore range. Gray finish. For industrial power transmission applications.](https://www.mrosupply.com/products/135746/as-markdown/)
- [TB Woods 703B conventional V-belt sheave with 3 grooves, 7.0" outside diameter, and A-B belt section. Cast-iron construction with SK bushing for quick-disconnect mounting. Standard single-plane balance, rated for up to 3410 RPM.](https://www.mrosupply.com/products/346508/as-markdown/)

## Product's reviews:
- Sprocket lm - Good quality product, arrived on time, will continue to buy from this company
- 70 tooth #41 chain sprocket - The sprocket arrived on time, fit perfectly and was priced well. MRO SUPPLY is your best choice for hard to find sprockets!
- 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!!!
- Plate gear - Just what I ordered at a reasonable price. Thank you, Dallas