{"product_id":"bartell-11638-6mm-x-6mm-x-25mm-key-oem-replacement-part","title":"Bartell 11638 6mm x 6mm x 25mm Key OEM Replacement Part","description":"\u003cp\u003eThis 6mm x 6mm x 25mm woodruff-style drive key secures rotating components, such as pulleys, sprockets, or blade spider assemblies, to their shafts, ensuring positive torque transfer and preventing slippage during walk-behind trowel operation. When a key shears or wears, the driven component loses its locked engagement with the shaft, resulting in erratic blade pitch, loss of drive, or complete stoppage of finishing operations. Replacing a damaged or missing key with the correct OEM specification part restores precise shaft-to-hub alignment and eliminates the risk of further damage to mating keyways. The 6mm square cross-section and 25mm length are critical dimensions, using an undersized or imprecise aftermarket substitute can accelerate keyway wear and lead to costly shaft or hub replacement. Technicians should inspect the keyway on both the shaft and the mating bore for signs of fretting or deformation before installing the new key, and ensure the key seats fully without rocking. This part is a direct OEM replacement designed and specified by Bartell Global for use in the following walk-behind power trowel models:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eB424\u003c\/li\u003e\n\u003cli\u003eB430\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eGenuine Bartell Global OEM part, sold by an authorized dealer.\u003c\/p\u003e","brand":"Bartell","offers":[{"title":"Default Title","offer_id":43412754071600,"sku":"11638","price":48.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/6574\/7248\/files\/11638.jpg?v=1784313387","url":"https:\/\/cce-industries.com\/products\/bartell-11638-6mm-x-6mm-x-25mm-key-oem-replacement-part","provider":"CCE Industries","version":"1.0","type":"link"}