English Translation of Title:
Lock Washer 63 – Waterjet Cutting Equipment Accessory (ID: 95688719)

Description, Purpose, Features, and Maintenance:

This component is a split‑type or helical lock washer sized for 63‑mm diameter fasteners, designed specifically for use in waterjet cutting machinery. It is installed beneath hex nuts or bolt heads to prevent rotational loosening caused by high‑frequency vibration, pressure pulsation, and rapid gantry movements.

Purpose:

• Provides spring‑loaded tension between the fastener and the bearing surface to maintain clamping force.

• Prevents self‑loosening of critical bolted joints on pump manifolds, high‑pressure piping flanges, and cutting head oscillation mechanisms.

• Compensates for minor thermal expansion and contraction in bolted assemblies during continuous operation.

• Acts as a secondary locking mechanism in safety‑critical connections where thread adhesives are not suitable.

Features:

• Manufactured from hardened spring steel with a corrosion‑resistant surface treatment to withstand waterjet's humid and mildly acidic environment.

• Helical split design offers consistent outward spring force across the entire circumference.

• Sharp edges at the split ends bite into both the nut face and the base material, providing positive mechanical locking.

• Designed to maintain elastic recovery after multiple compression cycles within specified torque range.

• Compatible with standard 63‑mm bolt patterns and flange configurations used in high‑pressure waterjet systems.

Maintenance:

• Inspect for permanent deformation, cracks, or loss of spring tension before each reassembly.

• Replace immediately if the gap between split ends has closed completely or if the washer shows signs of fatigue fracture.

• Clean with compressed air and a soft brush to remove abrasive particles that may embed in the coil; do not use acid‑based cleaners.

• Always install with the split ends facing the nut side (not the workpiece) for optimal locking effect.

• Do not reuse if the washer has been compressed beyond its elastic limit during prior service.

• Verify that the washer size matches the fastener diameter precisely; undersized or oversized washers reduce locking effectiveness.