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The Martin BK903/4 is a BK Series FHP Sheave designed for light-duty applications. It features a finished bore of three-fourths of an inch and is compatible with A, 4L, B, and 5L belt sizes. This sheave has a precision-machined design that ensures smooth operation.
The Martin BK903/4 sheave offers reliable performance in various applications, particularly in HVAC systems. Its construction supports longevity and efficient 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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