MB55-1/2 V-Belt Pulley Single Groove | BK57-1/2 Sheave

MB55-1/2 V-Belt Pulley Single Groove | BK57-1/2 Sheave

Marsoni

M251S

$43.97

Get it in 3 business days with 1 day shipping. Friday, May 29

MB55-1/2 V-Belt Pulley Single Groove | BK57-1/2 SheaveThe MB55 1 2 V Belt Pulley Single Groove BK57 1 2 Sheave is designed to provide a reliable power transmission solution. Its single groove makes it ideal for applications that require minimal slippage. Product Details : MB55 1 2 V Belt Pulley Single Groove BK57 1 2 Sheave Part No: MB55 1 2 Reference Number: BK57 1 2 Fixed Bore: 1 2" Outside Diameter: 5. 45" Belt Series: 4L A 5L B Groove: 1 Length Through Bore (LTB): 1 1 2" App. Wgt.: 2. 6 For any

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
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I finally got around to cleaning up the cable disaster on my home office desk and these grommets were exactly what I needed. They fit perfectly into the 2-inch holes I drilled, and the plastic feels surprisingly sturdy, not like that cheap, brittle stuff that snaps the moment you try to pop the cover back on. The little brush-like opening is a nice touch because it keeps the cords from sliding back down when they aren't plugged in, and the black finish looks really clean against my wood tabletop. For a 4-pack, the price was a total steal, and it honestly makes the whole setup look way more professional than just having raw holes in the desk. If humans are looking for a quick and cheap way to hide cord clutter, these are a solid bet.

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Reviewed in the United States on February 10, 2026

Verified Purchase

Amanda Schepeler

New York, US

★★★★★ 5

Great product

Size: 50mm/2inch, Color: Black, Number of Items: 4

Works as described. Love that it came with a hole drill bit!

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Reviewed in the United States on February 24, 2026

Verified Purchase

MKR

West Palm Beach, US

★★★★★ 5

Desk grommet used on entertainment wall

Size: 50mm/2inch, Color: Black, Number of Items: 4, Size: 50mm/2inch, Color: Black, Number of Items: 4

I used this grommet for the entertainment center wall behind my TV and it looks good and works great. Came with all the tools I needed to cut the hole in the wall and install it.

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Reviewed in the United States on November 8, 2025