138-9770 – Bearing-Ball (3BW) – Genuine Toro OEM Part

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138-9770 – Bearing-Ball (3BW) – Genuine Toro OEM Part The Toro 138-9770 Ball Bearing (3BW) is a genuine Toro OEM precision bearing designed to support smooth, low-friction rotation in mower deck, spindle, and drive system assemblies. This ball bearing helps reduce friction, control heat buildup, and maintain accurate shaft alignment during high-speed and continuous operation. Manufactured to Toro original equipment specifications, the 138-9770 bearing is built for durability and consistent performance under vibration, load, and demanding outdoor mowing conditions. Product Details Manufacturer Part Number: 138-9770 Brand: Toro Part Name: Bearing – Ball Series / Code: 3BW Part Type: Ball bearing OEM Status: Genuine Toro OEM Condition: New Key Features Precision-manufactured for smooth rotational performance Reduces friction and wear on shafts and housings Designed to handle high RPM and radial loads Durable construction for long service life Direct-fit OEM replacement with no modification required Compatibility The Toro 138-9770 Ball Bearing is used on select Toro lawn mowers and turf equipment, commonly within spindle assemblies, pulley hubs, and drive system components utilizing 3BW-series parts. Typical applications include: Toro mower deck spindle assemblies Pulley and idler components Lawn and turf equipment requiring OEM ball bearings Show more