Model: NOV 109586-3 Bearing Retainer Shim
Material: Precision stainless steel sheet
Structure: Circular multi-hole flange shim
Thickness: 0.005 inch
Fit equipment: NOV Varco TDS-9SA / TDS-11SA top drive main spindle bearing assembly
Function: Axial clearance fine adjustment for main bearing
Operating environment: Heavy load, anti-vibration, mud resistant
Maintenance: Only used during complete top drive overhaul
