High-Quality Replacement Driveline Parts by — PTC Drivelines
The PTC1011 Spider Assy – Front is designed to provide reliable torque transmission and rotation in the Komatsu HD 1500-7 heavy-duty rigid dump truck differential assembly. The spider assembly is a critical component in ensuring even distribution of driving force among the axle system to help the vehicle maintain traction and stability when under heavy load for extended periods, as is the case in many off-highway applications, like in mining, quarrying, and large-scale earth-moving operations. It is the same as OEM part 562-20-31102 from KOMATSU.
The front spider assembly is placed under a lot of walking and driving stress, shock, and torque loads at the core of the diff and is constantly exposed to these. Designed to meet this mechanical stress, the PTC1011 Spider Assy – Front will maintain structural integrity and rotational balance under extended and high torque duty cycles.
The PTC1011 is prepared following a controlled process and with long-life materials to ensure consistent fitment, dimensional stability, and load-bearing for the product. This ensures smooth interaction with mating differential elements, less unexpected downtime, and minimum early wear. The spider assembly is designed to be durable and reliable, able to handle the rigors of towing long distances with heavy machinery for mining and earthmoving purposes.
Other driveline components from PTC Drivelines compatible with the Komatsu HD 785-7.
Whether you need OEM-compatible spare parts for your mining fleet, a reliable export supply partner, or want to become a regional distributor — our team is ready to help within 24 hours.
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