CAT 095-3609 RETAIN O.SEA

CAT 095-3609 (0953609) is a Caterpillar 400GT track undercarriage oil seal retainer ring, compatible with 349/352/374 excavators, 982/988 loaders, and other equipment. It is installed in the oil seal grooves of the track track rollers/guide rollers/drive wheels to prevent the oil seal from being squeezed into the gaps and failing under high pressure/impact conditions, thus preventing leakage. It is a key component for leak prevention and component protection in the track undercarriage sealing system.

Core Parameter Table

Item Details
Part Model CAT 095-3609 (0953609) Oil Seal Retainer Ring

Type: Oil seal anti-extrusion retainer ring, rectangular cross-section, with positioning groove, compatible with 400GT track chassis oil seal groove, for matching oil seal installation

Material: 65Mn spring steel, integral stamping + quenching and tempering (hardness HRC42-48), surface galvanized passivation/oxidation blackening, extrusion resistant, wear resistant, corrosion resistant

Dimensions and Weight: Inner diameter approx. 120-140mm, outer diameter approx. 140-160mm, thickness approx. 3-5mm, single weight approx. 0.3-0.5kg, compatible with corresponding oil seal groove width and diameter

Compatible Models: CAT 349, 352, 374 excavators, 982, 988 loaders, etc., compatible with 400GT track chassis, matching 095-2943 Track Plates, 095-3416/095-3460 Fixtures, and other chassis components

Functional Positioning: Prevents oil seals from being squeezed into the sealing gap under high pressure/impact, protecting the oil seal’s sealing performance; positions the oil seal axially, reducing oil seal wear and extending seal life.

Adaptation and Application:
Suitable Parts: Oil seal mounting grooves on track rollers, guide rollers, and drive wheels. Used in conjunction with the oil seal, installed on the side of the oil seal to fill the sealing gap and prevent oil seal extrusion.

Application Scenarios: Suitable for heavy-duty working conditions such as mining and infrastructure construction, withstanding high hydraulic oil pressure (commonly 20-40MPa) and track impact loads, ensuring leak-free operation of the tracked chassis sealing system during high-speed travel, steering, and heavy-duty operation, protecting bearings and lubrication systems.

Core Functions: Prevents oil seal extrusion, protecting oil seal sealing performance; positions the oil seal axially, reducing oil seal wear, extending seal life, and reducing equipment maintenance costs and downtime.

Installation and Maintenance Points

Installation: Clean the retaining ring and oil seal groove, ensuring they are free of oil and impurities; use specialized tools for installation to prevent deformation of the retaining ring; install it in conjunction with the oil seal, ensuring a tight fit without gaps; after installation, check that the retaining ring is fully embedded in the groove and is not loose.

Maintenance Cycle: Check for deformation and wear of the retaining ring every 500 hours; shorten this to 250 hours in harsh working conditions such as mining.

Replacement Standard: The retaining ring must be replaced when it shows deformation, cracks, or wear exceeding tolerance (thickness wear > 0.5mm); prioritize original parts to avoid malfunctions such as oil seal extrusion, sealing failure, and oil leakage caused by dimensional deviations/insufficient material strength.