Graco 108864 Thrust Bearing

Graco 108864 Thrust Bearing – OEM Replacement Part

The Graco 108864 Bearing, Thrust is a genuine OEM component designed to handle axial (thrust) loads inside Graco fluid‑handling and spray equipment. It helps maintain piston alignment, reduce wear, and ensure smoother pump operation. According to published specs it measures approximately 0.7 in × 0.7 in × 0.1 in (length × width × height). :contentReference[oaicite:1]{index=1}

Compatible Machines

While the manufacturer’s documentation does not explicitly list every model for part 108864, our research indicates it is used in a range of Graco piston/displacement pump units. Below is a list of known compatible equipment for which this thrust bearing may be suitable. Always verify via your machine’s parts manual or serial number before ordering.

• Graco GMAX 3400 Standard Series (drive housing listing shows similar thrust bearings 180131 and 107434) :contentReference[oaicite:2]{index=2}
• Graco Mark X HD / IronMan Series (parts lists include thrust bearing usage in drive assembly) :contentReference[oaicite:3]{index=3}
• General Graco displacement‑pump assemblies where OEM parts catalog mentions “Bearing, thrust” in the drive housing. :contentReference[oaicite:4]{index=4}

Note: We could *not* locate a verified parts‑diagram that lists “108864” by exact machine model. Please confirm fitment with your machine’s serial number and parts list.

Key Specifications & Features

Properly replacing the thrust bearing helps maintain correct axial alignment of the pump rod or crankshaft, reduces axial shaft wear, and contributes to longer overall pump life and smoother performance.

Installation & Maintenance Tips

• Always depressurize the pump system and lock out power before removing the drive housing.
• Clean mating surfaces and check for wear on the old thrust bearing—excess wear may indicate misalignment or other mechanical issues.
• Lubricate according to your machine’s service manual, and ensure correct seating of the bearing in the housing.
• If you find a different part number (like 180131, 107434, 116079) in your machine’s diagram, confirm if 108864 is an approved replacement or an alternate. :contentReference[oaicite:7]{index=7}

Frequently Asked Questions

Note: Always verify your machine’s serial and model number before ordering replacement parts. Use correct torque specs and installation procedures as per your equipment’s service manual.