# Shim Selector > NVH brake shim material selection tool for engineers with FFT analysis. (iPhone/iPad app by Trelleborg Sealing Solutions.) - Source: https://appshunter.io/ios/app/shim-selector/id718147152 (this page in markdown: same URL + `.md`) - Developer: [Trelleborg Sealing Solutions](https://appshunter.io/developer/396863758) - Category: Business, Utilities - Price: Free - Rating: 4.80/5 from 5 App Store ratings · 4 written reviews indexed - Age rating: 4+ - Requires: iOS 16.6 · 15 MB - Languages: American English - Released: 2013-10-08 - Data updated: 2026-06-04 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/shim-selector/id718147152/reviews.md ## What is Shim Selector? Noise, vibration and harshness (NVH) problems with brakes? This is the leading tool for engineers to find the best Shim materials for the job. Tap into Trelleborg’s expertise and wide range of top quality materials. Offering more than just a recording function, the app includes an FFT (Fast Fourier Transform) analyzer for an accurate and precise result, showing peak levels (dB) across frequency (Hz). An advanced search function allows for easy filtering for the type of adhesive used, steel quality and thickness and other variables. Requesting one of the short listed materials for a dynamometer test is so easy, using the built in form. Brake engineers rely on this tool, so should you. ## Key features - FFT analyzer for peak dB and frequency - Advanced search and filtering - Material selection based on adhesive, steel, and thickness - Request dynamometer test samples - Access to Trelleborg's material expertise ## Recent user reviews (4 of 4) All indexed reviews: https://appshunter.io/ios/app/shim-selector/id718147152/reviews.md ### 4/5 — good *2013-12-09, version 1.0* Good but need some improvement ### 5/5 — Outstanding *2013-12-09, version 1.0* Yeah ! Great ### 5/5 — Great accuracy *2013-12-09, version 1.0* This is indeed the best app for selecting shim ### 5/5 — Perfect *2013-12-09, version 1.0* Must have tool ## Frequently asked questions about Shim Selector ### What is Shim Selector used for? Shim Selector is a tool designed for engineers to identify the best shim materials for addressing noise, vibration, and harshness (NVH) problems in brakes. It provides advanced analysis and material filtering capabilities. ### Does Shim Selector have ads? No, Shim Selector is ad-free, allowing for an uninterrupted user experience focused on engineering tasks. ### What kind of analysis does Shim Selector offer? Shim Selector includes an FFT (Fast Fourier Transform) analyzer. This feature provides accurate and precise results by showing peak levels in decibels (dB) across various frequencies (Hz). ### How can I find specific shim materials with Shim Selector? The app features an advanced search function that allows users to filter materials based on criteria such as adhesive type, steel quality, thickness, and other variables. This makes finding suitable materials efficient. ### Can I request material samples through Shim Selector? Yes, once you have identified suitable materials from the short list, you can easily request them for a dynamometer test using the built-in form within the application. ### What devices is Shim Selector available on? Shim Selector is currently supported on iPhone devices. It was last updated on April 29, 2025, with version 2.7. ### Is Shim Selector suitable for beginners? Shim Selector is primarily targeted at engineers, suggesting a need for some technical background in automotive braking systems and NVH principles. Its advanced features are designed for professional use. ### How often is Shim Selector updated? The app was last updated on April 29, 2025, indicating ongoing development and support from Trelleborg Sealing Solutions. Users can expect continued improvements and feature additions. ## Version history (last 5 releases) ### 2.7 — 2025-04-29 Minor Enhancement. ### 2.6 — 2022-04-25 Update made for increased number of FFT peak points. ### 2.5 — 2022-04-06 New Materials updated. ### 2.4 — 2021-08-25 EU GDPR compliance. ### 2.3 — 2019-05-07 Minor improvement features and bug fixes. ## More apps by Trelleborg Sealing Solutions - [ISO Fits](https://appshunter.io/ios/app/iso-fits/id396863755) - [Converter-Universal Conversion](https://appshunter.io/ios/app/converter-universal-conversion/id423521445) - [O-Ring](https://appshunter.io/ios/app/o-ring/id485346224) - [Aerospace Groove Selector](https://appshunter.io/ios/app/aerospace-groove-selector/id524363133) - [Glossary](https://appshunter.io/ios/app/glossary/id548601106) All apps by Trelleborg Sealing Solutions: https://appshunter.io/developer/396863758 ## Related topics [sealing materials selector](https://appshunter.io/ios/topics/sealing-materials-selector) · [bendix brake pad identifier](https://appshunter.io/ios/topics/bendix-brake-pad-identifier) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-04.*