Composite Gib Bearing Surface for Lubricant-Free Low Friction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing manufacturing processes, particularly in injection molding, face challenges with contamination and operational inefficiencies due to the use of applied lubricants in gibs and motionable components, leading to issues like galling, lubricant migration, and increased maintenance costs.
Innovation Solution
A low-friction gib is developed, comprising a metallic substrate with a fabric resin composite attachment that serves as a bearing surface, eliminating the need for lubricants and reducing friction between components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If applied lubricants are used in gibs and motionable components, then friction is reduced, but contamination and lubricant migration occur
Solution Approach 1:
The patent removes lubricants entirely from the system by using self-lubricating composite materials (PTFE, graphite, molybdenum disulfide) integrated into the gib and motionable component structures, eliminating the source of contamination while maintaining low friction operation
Solution Approach 2:
The composite materials provide self-lubrication properties, allowing the gibs and motionable components to reduce friction without external lubricant application, thereby eliminating contamination risks while maintaining operational ease
2Reliability
If lubricants are applied to motionable components, then galling is prevented, but maintenance frequency increases
Solution Approach 1:
The self-lubricating composite materials are permanently embedded in the gib and motionable component structures, providing continuous galling prevention without requiring periodic lubricant reapplication, thus eliminating maintenance downtime while maintaining reliability
Solution Approach 2:
The patent uses composite materials combining metal substrates with lubricant-containing matrices (PTFE, graphite, molybdenum disulfide), creating permanent self-lubricating surfaces that prevent galling without the need for periodic lubricant maintenance
3Ease of operation
If FDA approved food grade grease is used in clean room environments, then lubrication is provided, but performance is limited
Solution Approach 1:
The patent employs advanced composite materials (PTFE, graphite, molybdenum disulfide) that provide superior lubrication performance across diverse conditions including high temperature, high pressure, and varying loads, far exceeding the limited performance of FDA approved food grade grease
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively reduces contamination and operational issues by eliminating lubricant-related problems, such as galling and migration, while also reducing maintenance costs and enabling lubricant-free operation within various temperature and pressure ranges.
Implementation Method 1
The attachment is formed of a fabric resin composite material... configured to reduce friction between the first functional surface and another adjacent component movable relative to the first functional surface
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A gib includes a metallic substrate having a first face and a second face and an attachment disposed on the metallic substrate. The attachment includes a first functional surface disposed on the first face of the metallic substrate. The first functional surface is configured as a bearing surface. The attachment may be formed of a fabric resin composite material.