CAT 095-2994 SEAT SPRING

CAT 095-2994 (0952994) is the spring base for the Caterpillar track undercarriage tensioning system. It is compatible with the 400GT track tensioning mechanism of heavy-duty equipment such as 349/352/374 excavators and 982/988 loaders. It supports the tension spring, positions the tension cylinder and guide wheel, transmits tension force, and absorbs impacts during travel. It is the core load-bearing component of the track tensioning system, ensuring stable track tension and smooth travel.

Core Parameter Table

Item Details
Part Model CAT 095-2994 (0952994) Spring Base

Type: Track tensioning system load-bearing base, with spring positioning groove, tensioning cylinder connection interface, guide wheel mounting positioning surface, transmits tension force, absorbs impact, and maintains constant track tension.

Material: Q460/500 grade high-strength low-alloy structural steel, integral forging + heat treatment (hardness HB220-260), surface shot blasting + Caterpillar yellow primer, impact resistant, fatigue resistant, and corrosion resistant.

Key Dimensions: Compatible with 400GT track tensioning springs (outer diameter 200-250mm), length approx. 360-410mm, width approx. 210-260mm, thickness approx. 55-65mm, single weight approx. 32-42kg, bolt hole spacing/diameter conforms to Caterpillar tensioning system standards.

Compatible Models: CAT This product is suitable for excavators (349, 352, 374), loaders (982, 988), etc., and is compatible with 400mm track tensioning mechanisms. It matches chassis components such as 095-2943 track shoes and 095-2963 mounting plates.

It is used in conjunction with track tension springs, tension cylinders, guide wheels, track links, and track pins. It is installed in the front tensioning chamber of the track frame, connecting the tension cylinder and the guide wheel, supporting the tension spring, and transmitting tension force.

Applications: Suitable for the front tensioning chamber of the track frame. Installed between the tension cylinder and the guide wheel, it supports the tension spring and positions the guide wheel, transmitting the thrust/tension of the tension cylinder, absorbing ground impact, and preventing track link wear, track slippage, or deviation caused by excessively loose/tight tracks.

Application Scenarios: Suitable for heavy-duty working conditions such as mining and infrastructure construction, bearing the preload of tension springs (commonly 10-15 tons) and walking impact loads. The 400GT series tensioning system balances tension and cushioning, ensuring stable operation of the track system.

Core Functions: Fixes the tension spring, transmits tension force to the guide wheel; positions the tension cylinder and guide wheel, absorbs walking impacts, maintains constant track tension, protects track links, track rollers, and guide wheels, and extends the service life of chassis components.

Installation and Maintenance Points:
Installation: Clean the connection surfaces of the base, tension cylinder, and guide wheel, ensuring they are free of oil and impurities; tighten the bolts to the original torque (300-350 N·m, refer to the model manual); after installation, check the preload of the tension spring and the positioning of the guide wheel, and adjust the track tension to the standard range (track sag 100-150 mm). Maintenance cycle: Check the base for deformation, cracks, and bolt torque every 250 hours; shorten this to 100 hours in harsh working conditions such as mining.

Replacement criteria: The base must be replaced if cracks, deformation, worn/deformed bolt holes, or wear on the spring positioning groove causing spring misalignment are observed. Original parts are preferred to avoid tensioning failure or track detachment caused by dimensional deviations or insufficient material strength.