{"product_id":"bartell-14285-sheave-mb58-x-3-4-oem-replacement-part","title":"Bartell 14285 Sheave MB58 x 3\/4 - OEM Replacement Part","description":"\u003cp\u003eThis sheave transfers rotational power through the belt drive system of Bartell walk-behind trowels, and replacing a worn or damaged sheave is essential to maintaining proper belt tension, blade RPM, and consistent finish quality on concrete surfaces.\u003c\/p\u003e\u003cp\u003eDesigned for use on Bartell's 46-inch commercial and pro-series walk-behind trowels, this MB58 x 3\/4 sheave is a precision-fit component matched to the drive system specifications of these machines. The B446 and BC446 platforms operate at a blade RPM of 180, powered by Honda GX270, GX340, and GX390 engines producing up to 11.7hp (8.7kW). At these operating speeds and power outputs, sheave wear or groove damage directly impacts belt slip, uneven blade rotation, and premature belt failure. A sheave showing signs of glazing, groove wear, or cracking should be replaced promptly to avoid downstream damage to the belt and drive assembly.\u003c\/p\u003e\u003cp\u003eThe 3\/4 inch bore dimension is a critical fitment specification, confirm shaft diameter before installation. Use appropriate bearing retainer or fastener compounds as specified in your machine's service manual during reassembly.\u003c\/p\u003e\u003cp\u003eCompatible with the following Bartell Global walk-behind trowel models:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eB446\u003c\/li\u003e\n\u003cli\u003eB446 MEGA-T\u003c\/li\u003e\n\u003cli\u003eBC446\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":43412757839920,"sku":"14285","price":141.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/6574\/7248\/files\/14285.jpg?v=1784313820","url":"https:\/\/cce-industries.com\/products\/bartell-14285-sheave-mb58-x-3-4-oem-replacement-part","provider":"CCE Industries","version":"1.0","type":"link"}