Available to order.
Serving as the central mechanical hub that connects the trowel arms to the gearbox output, the spider plate assembly is a critical load-bearing component in walk-behind power trowels, when it wears, cracks, or loses geometry, the entire finishing head loses balance and control, making timely replacement essential for safe and accurate concrete finishing.
This OEM spider plate assembly (Part No. 20810) is manufactured to Bartell Global's original specifications, ensuring proper arm pitch, structural integrity under rotational stress, and precise fitment with the surrounding drive components. A worn or damaged spider plate can cause uneven blade contact, excessive vibration, and accelerated wear on adjacent parts including the trowel arms and pitch adjustment mechanism. Replacing the assembly as a complete unit, rather than individual components, restores original geometry and reduces the risk of misalignment during operation.
Technicians servicing walk-behind trowels should inspect the spider plate during routine maintenance checks, particularly after heavy use on abrasive concrete mixes or following any impact event. Signs of failure include unusual vibration, inconsistent blade pitch response, or visible cracking and deformation around the arm attachment points.
Compatible models include:
Genuine Bartell Global OEM part, sold by an authorized dealer.
