Description
CAT 2G-8234 107.79mm Internal Diameter Steel Spacer
| CAT 2G-8234 107.79mm Internal Diameter Steel Spacer |
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CAT 2G-8234 is a Caterpillar 107.79 mm inner diameter steel spacer, suitable for bearings, gearboxes, shaft positioning and clearance adjustment. It is used on the shaft ends, bearing housings, or flange faces of tracked excavators, loaders, and other equipment, providing precise axial positioning and load distribution. The following is structured precision information.
Core Parameters (Professional Version)
Project Details
Basic Attributes
Model 2G-8234, Annular Steel Gasket (Spacer), Quantity per Unit 1–4 Pieces (depending on shaft positioning requirements), used for bearing axial positioning, gearbox clearance adjustment, and flange face sealing assistance, suitable for light to medium load conditions.
Key Dimensions
Inner Diameter 107.79 mm (4.2437 in), Outer Diameter 152.4 mm (6.00 in), Thickness 23.81 mm (0.9375 in), Inner Diameter Tolerance H7, Outer Diameter Tolerance h6, Flatness ≤0.01 mm, Surface Roughness Ra≤1.6 μm
Material and Process
Medium Carbon Steel (SAE 1045), Quenched and Tempered (Hardness HB220–260), Surface Galvanized Passivation for Corrosion Protection, Edge Deburring, Double-Sided Flat Grinding, No Porosity or Cracks
Performance Parameters
Axial Load ≥50 kN, Operating Temperature -40℃ to + 150℃, vibration resistance ≤8 g, compatible shaft diameter 107.79 mm (h6 tolerance), mounting surface parallelism ≤0.02 mm. Compatible models: Cat 320/336 excavators, 950/966 loaders, some shaft assemblies, bearing housing assemblies. Compatible bearings: 569-4230, 254-0024, etc. Installation and Maintenance Points: Before installation, clean the shims and mounting surfaces, checking for deformation, rust, and ensuring flatness meets requirements. During installation, ensure concentricity with the shaft to avoid uneven loading.
When installing bearings, ensure tight fit with the inner/outer ring, controlling axial clearance within 0.02–0.05 mm to guarantee normal bearing clearance.
Tighten bolts diagonally in 2–3 passes to achieve the specified torque, preventing shim deformation. After assembly, check for axial movement ≤0.03 mm.
It is recommended to check the condition of the shims every 2000 hours and replace them in time if they are deformed, corroded or worn to avoid shaft positioning failure.
