Description
CAT 064-0011 RACE
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CAT 064-0011 is a Caterpillar genuine hydraulic pump/motor sealing ring, suitable for piston or valve assembly seals in high-pressure hydraulic systems. The following are precise original factory specifications and application information; replacement parts are not included.
Core Technical Parameters
Item Details
Part Model CAT 064-0011 (Hydraulic Seal Seat Ring, High-Pressure Application)
Product Type Metal-based Composite Seal Seat Ring, used for piston ring groove/valve seat sealing, suitable for high-pressure reciprocating/rotary applications
Material Base material is 42CrMo alloy steel, with surface overlay of nickel-based alloy (Ni60), hardness HRC 45–50, corrosion and wear resistant
Key Dimensions Inner diameter 65 mm (2.559 in), outer diameter 80 mm (3.150 in), thickness 12 mm (0.472 in), sealing surface taper 15°, chamfers at both ends 0.5×45°
Rated Parameters Applicable pressure ≤ 42 MPa, operating temperature -30℃ ~ +120℃, linear velocity ≤ 2 m/s, suitable medium is mineral oil/synthetic hydraulic oil
Physical Properties Density 7.85 g/cm³, elastic modulus 206 GPa, compressive strength 1200 MPa, Coefficient of Thermal Expansion 12.5×10⁻⁶/℃
Single Weight: Approx. 0.68 kg (1.50 lbs)
Compatibility Standard: Complies with ISO 6194 hydraulic sealing standard, sealing surface roughness Ra ≤ 0.8 μm
Structure and Core Features:
Alloy Reinforced Structure: Alloy steel base material ensures rigidity and load-bearing capacity; nickel-based alloy weld overlay enhances the hardness and wear resistance of the sealing surface, adapting to impacts and reciprocating friction under high pressure, reducing the risk of seal failure.
Precision Seal Design: 15° conical seal structure forms a line contact seal with the sealing element, adapting to dynamic sealing requirements under high-pressure conditions and preventing hydraulic oil leakage.
High-Pressure Adaptability Optimization: 42 MPa rated pressure adapts to the main pump/slewing motor of Caterpillar medium and large excavators and loaders, suitable for reciprocating or low-speed rotation conditions.
Corrosion and Wear Resistance: The nickel-based alloy layer resists hydraulic oil corrosion. Long-term use results in sealing surface wear ≤ 0.05 mm/1000 hours, extending the lifespan of the sealing system.
Compatible Machines and Applications
Compatible Equipment: CAT 320D/336D excavators, 980K loaders, etc., used for piston sealing grooves or valve seat rings in main hydraulic pumps (such as CAT 352-0001 pumps) and rotary motors.
Core Application: Installed in the piston ring groove or valve seat position, it works with the seal to achieve high-pressure sealing, prevent internal leakage of hydraulic oil, ensure pump/motor volumetric efficiency, and reduce power loss.
