


MB31-3/4 V-Belt Pulley Single Groove | BK30-3/4 Sheave
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
MB31-3/4 V-Belt Pulley Single Groove | BK30-3/4 SheaveThis V Belt Pulley Single Groove is designed to fit standard 3 4" bore and BK30 3 4 Sheave. It's made of solid steel for long lasting durability in industrial applications. Enjoy consistent, reliable performance with this high quality pulley. Product Details : MB31 3 4 V Belt Pulley Single Groove BK30 3 4 Sheave Part No: MB31 3 4 Reference Number: BK30 3 4 Fixed Bore: 3 4" Outside Diameter: 3. 15" Belt Series: 4L A 5L B Groove: 1 Length Through Bore
Quick Dispatch:
Your MB31-3/4 V-Belt Pulley Single Groove | BK30-3/4 Sheave orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.5 ★★★★★
Based on 1337 reviews
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Product Reviews
★★★★★ 5
Great buy
Size: 40W x 30L, Color: Midnight Selvedge
Great buy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026
★★★★★ 2
Jeans size
Size: 31W x 30L, Color: Midnight Selvedge
Too small in waist.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 17, 2025
★★★★★ 5
Good pants I like em
Size: 34W x 34L, Color: Midnight Selvedge
Fit great nice fabric, a little thin for winter I’d say. There are small QC issues with the stitching.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 2, 2025
★★★★★ 1
Extremely thin material.
Size: 34W x 32L, Color: Midnight Selvedge
Really thin material. For the price I was expecting something closer to a buck mason quality fabric but these jeans are extremely light weight and I don’t expect them to last.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
★★★★★ 5
Denim feels thin but soft
Size: 32W x 32L, Color: All My Days Selvedge
The denim seems thinner than from years ago. 100% cotton feels soft. Fit me same as other stretchy 505 that are made with elastine. Waist size is fine. Haven't washed them yet. Yes, the price is high, but I like the 100% cotton and will likely buy more selvedge jeans.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 1, 2026
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