3M 51144 372L 60-0001-0208-1 Microfinishing Film 50 Mic 4" x 50' x 3" AlumOx NOS

Description

3M 51144 372L 60-0001-0208-1 Microfinishing Film 50 Mic 4" x 50' x 3" Aluminum Oxide NOS, 1-Roll
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New Old Stock (NOS).  Purchased in bulk therefore no original packaging, comes as shown.
This is a 50 Mic 4" wide by 50 feet long roll of aluminum oxide microfinishing film on a slide out 3" ID roll.  The abrasive side is out on the roll.  Retail price is 2 a roll.
This listing is for ONE (1) Roll of 3M 51144 372L 60-0001-0208-1 Aluminum Oxide Microfinishing Film 50 Mic 4" x 50' x 3".
Thanks for looking!!
From the manufacturer:
Description
3M Microfinishing Film Roll 372L, 4 in x 150 ft x 3 in 50 Micron ASO, 4 per case
An aluminum oxide micron roll resin bonded to a 5 mil polyester film backing. The backing has a friction grip coating for slip resistance. Precision finishing of cylindrical surfaces such as automotive camshafts & crankshafts.
Micron-graded aluminum oxide abrasive cuts fast and provides a consistent, fine finish
Durable polyester film backing provides flexibility for consistent finishing on contoured surfaces
Polyester film backing can be run wet
Available in a range of grades to help operators achieve goal tolerances
Color-coded by grade for error proofing
Our 3M™ Microfinishing Film Roll 372L features micron-graded premium aluminum oxide bonded to a 5 mil polyester film backing to deliver uniform results and meet stringent surface requirements. A friction grip coating provides slip resistance for microfinishing machines where film slippage is an issue, and close tolerance work on cylindrical surfaces, such as automotive camshafts and crankshafts.
Predictable, Consistent, Repeatable Performance
In order to achieve an extremely consistent scratch for microfinishing, we use micron-graded mineral, measured at a very tight size tolerances for 3M™ Microfinishing Film Roll 372L. The resin bond ensures reliable, consistent performance. With a durable film backing, the abrasive helps achieve tight geometry and finish tolerances.
This microfinishing roll comes in a broad range of micron grades to achieve reproducible surface characteristics and geometric values that adhere to specification. In some applications, numerous grades are run simultaneously to achieve finishes that differ across the surface of a single complex part. To reduce risk of operator error, we designed Type 2 film in a range of colors — reflective of each grade. The color coding is a useful visual cue, as is sorting width by core size and side and end of roll printing and marking.
Film Backing Provides Uniformly Flat Vehicle for Finer Finish
Film backings provide a superior, uniformly flat surface to hold abrasive particles — abrasive grains don't compress or become pressed into the backing. Highly conformable and tear-resistant, the polyester film backing flexes to help achieve a consistent finish over contours and is stronger than comparable paper products, making it ideal for high-production environments.
For Flawless Geometries
Manufacturers of critical automotive components have little room for error in producing parts to specification. Power generation, life, noise, vibration and friction, fuel efficiency and emissions are all tied to the finishes of crankshafts and camshafts that rotate on increasingly thinner films of oil.
Engine component surfaces and geometry can be improved by using microfinishing which removes variations in the surface, minimizes friction and manipulates metal behavior in other ways.
Recommended Applications
3M™ Microfinishing Films are used in the production of industrial components such as custom flanges and fittings for the oil and gas industry, as well as superfinishing of automotive parts, like crankshafts, camshafts and transmission parts.
Specifications
Application
Finishing
Backing Material
Polyester Film
Backing Weight
5MIL
Brand
3M™
Color
Purple
, Purple
Core Size
3 in
Core Size (metric)
76.2 mm
Equipment - Machines
Microfinishing Machines
, Superfinishing Machines
For Use On
Plastics
Industries
Aerospace
, AOEM
, General Industrial
, Precision Grinding & Finishing
, Primary Metal
, Transportation & Heavy Equipment
Length
150 Foot
Length (Metric)
45.72 m
Micron Grade
50 μm
Mineral Type
Aluminum Oxide
Product Form
Roll
Substrate
Plastics
Width
4 in
Width (Metric)
101.6 mm