ASM Failure Analysis Case Histories: Mechanical and Machine Components
Destroyed Needle Bearing of a Packing Machine
-
Published:2019
Abstract
A needle bearing from a filling and seating machine for milk cartons became unusable due to corrosion and fracture of a ring after only four weeks of operation of the machine in a Finnish milk packing plant. These bearings were subject to corrosion by water condensates in this type of environment because of constant temperature changes, and they normally are replaced after eight months. The bearings were lubricated by a molybdenum sulfide paste. Judging by their structure the needles probably consisted of ball bearing steel. They showed corroded initial cracks of the pitting type, i.e., shear-fatigue fractures due to...
Sign in
ASM members
Member Sign InFriedrich Karl Naumann, Ferdinand Spies, Destroyed Needle Bearing of a Packing Machine, ASM Failure Analysis Case Histories: Mechanical and Machine Components, ASM International, 2019, https://doi.org/10.31399/asm.fach.mech.c9001243
Download citation file:
Join ASM International
Being a member of the world’s largest association of materials professionals provides the benefits and resources you need to accomplish your personal and professional goals.