Spider for Grove TM 875

The spider, part number 9049100164, acts as the central cross-shaped component in a universal joint assembly. Its primary function is to link two yokes of a cardan shaft, enabling the transmission of torque between shafts that are not perfectly aligned or that change their relative angle during operation. By utilizing four precision-machined arms, the component interfaces with needle bearings housed within the yokes to ensure smooth rotation and power delivery throughout the drivetrain of the machine.

This component is specifically designed for use in the Grove TM 875 truck-mounted crane. It functions as a critical element within the transmission system, ensuring that engine power is transferred effectively to the wheels or auxiliary crane systems even when the chassis experiences articulation or movement. Proper alignment and integration of this part are necessary to maintain the integrity of the driveline assembly.

In heavy machinery, the spider is essential for accommodating the angular displacement between shafts. As the drivetrain operates, the spider allows the cardan joint to pivot, which prevents binding and mechanical stress on the transmission components. Regular inspection of the bearing surfaces and the cross arms is standard practice to ensure the continued efficiency of the power transmission system.