Clutch Release Bearing Inserts for Wear-Resistant Actuation
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Solution Overview
Problem
Current clutch release bearing housings made from durable materials like cast iron are expensive and labor-intensive to heat treat, and require replacement of the entire housing when the actuation region wears down, leading to inefficiencies and increased costs.
Innovation Solution
A clutch release bearing assembly with a housing formed from a first material and an insert made from a different, more durable material (such as spheroidal graphite cast iron, carbon steel, or alloy steel) that can be selectively attached and replaced, using a positive fit connection to engage with the actuator, allowing for targeted durability and cost-effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire housing is formed from cast iron or durable material, then the actuation region can withstand actuation forces, but the housing becomes expensive and labor-intensive to heat treat
Solution Approach 1:
The housing is divided into two functional segments: the main housing body made from cost-effective material and the actuation region inserts made from durable cast iron. This segmentation allows each part to be optimized independently, with the inserts providing localized durability only where needed, rather than heat treating the entire housing.
Solution Approach 2:
Instead of making the entire housing uniformly durable through expensive heat treatment, the patent applies durable cast iron inserts only to the specific actuation region where durability is required. This local quality approach ensures the actuation region can withstand forces while avoiding unnecessary manufacturing costs for the rest of the housing.
2Reliability
If the entire housing is formed from cast iron, then the actuation region can withstand actuation forces, but the entire housing must be replaced when the actuation region wears down
Solution Approach 1:
The actuation region is segmented as a separate removable insert rather than being integral to the housing. This allows the insert to be independently replaced when worn, without discarding the entire housing assembly. The mating elements enable straightforward installation and removal of the insert.
Solution Approach 2:
The patent enables selective discarding of only the worn insert component while recovering and reusing the main housing body. This partial replacement strategy reduces waste and maintenance costs compared to replacing the entire housing, while still restoring full functionality by installing a new insert.
3Reliability
If the housing is made from durable material, then it can withstand engagement without premature wear, but it increases material waste and maintenance costs
Solution Approach 1:
The patent applies durable cast iron material only to the insert components that directly contact the actuator, rather than using durable material for the entire housing. This localized application of durable material prevents premature wear at the engagement interface while minimizing overall material consumption and waste.
Solution Approach 2:
When inserts wear down, only the small insert components are discarded and replaced, while the main housing body is recovered and reused. This dramatically reduces material waste compared to discarding entire housings, as the housing represents the majority of the material consumption.
Data Source
AI summary
A clutch release bearing assembly is disclosed herein that includes a more durable and improved interface for engaging an actuator. The assembly includes a housing having at least one flange, and the housing is formed from a first material. At least one insert is supported on the at least one flange, and the at least one insert is configured to engage an actuator. The at least one insert is formed from a second material that is different than the first material.