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The Martin 4B64SD is a conventional stock QD sheave designed for reliable performance. It features four grooves and a six and three-fourth inch outside diameter. This sheave is suitable for A 4L or B 5L belt sizes and comes with an SD bushing.
This sheave is ideal for various applications requiring belt power transmission.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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