3M 7000044875 Aluminum Oxide Lapping Disc 5 Inch

Product Description

The 3M 7000044875 is a 5-inch diameter aluminum oxide lapping and polishing disc engineered for precision finishing applications. The abrasive mineral is coated onto a 3 mil polyester film backing using a softer resin system, which allows controlled cut rates and consistent surface finishes. Available in 1.0 and 2.0 micron grades, this disc is designed for applications where surface uniformity is critical. Technicians working in electronics manufacturing and fiber optic assembly rely on this disc to achieve tight tolerances without introducing surface defects. The polyester film substrate provides dimensional stability during wet or dry lapping passes.

This disc is used primarily in polishing fiber optic connectors and precision lapping operations on electronic components. The softer resin system and tight particle size distribution make it well suited for final-stage finishing where surface quality directly affects optical or electrical performance. Typical applications include end-face polishing of fiber optic ferrules and smoothing precision electronic parts to exacting surface specifications. It is sold as an individual disc and is compatible with standard 5-inch lapping and polishing fixtures used in electronics and telecommunications manufacturing environments.

Key Features

• Tight particle size distribution delivers consistent cut rate, finish, and disc life
• Softer resin system than standard aluminum oxide abrasive products for controlled material removal
• 3 mil polyester film backing provides stability and conformability during lapping
• Available in 1.0 and 2.0 micron grades for fine and ultra-fine finishing
• Suitable for both fiber optic polishing and precision electronic component lapping
• Available in disc, sheet, and roll formats

Compatibility

Designed for use with standard 5-inch lapping and polishing fixtures in fiber optic connector polishing and precision electronic component finishing operations.

Installation Notes

This disc is installed by electronics technicians and precision finishing specialists using standard lapping fixtures and polishing machines. Ensure the fixture platen is clean and free of debris before mounting the disc to prevent uneven abrasive contact. Follow equipment manufacturer guidelines for rotational speed and applied pressure when lapping fiber optic or electronic components. Dispose of used discs per facility waste handling procedures for abrasive materials.

Technical Specifications

• Diameter: 5 inches
• Backing Material: 3 mil polyester film
• Abrasive Mineral: Aluminum oxide
• Available Grades: 1.0 micron, 2.0 micron
• Weight: 0.01 pounds
• Package Dimensions: 7.71 x 6.88 x 4.7 inches
• Unit of Measure: Each
• UPC: 00051111501597

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000044875