# Machine Design 2

> Handbook of Machine Design with Easy Theory & Diagram, Learn a topic in a minute

Canonical page: [https://chrome-stats.com/d/engg.hub.machineDesign\_second](https://chrome-stats.com/d/engg.hub.machineDesign_second)

## Overview

- **ID:** `engg.hub.machineDesign_second`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Engineering Wale Baba
- **Category:** BOOKS\_AND\_REFERENCE
- **Downloads:** 19,753
- **Rating:** 3.67 / 5 (165 ratings)
- **Version:** 17.0
- **Last updated:** 2026-09-13
- **First published:** 2015-10-18
- **Publisher country:** IN
- **Size:** 33 MB
- **Data as of:** 2026-09-15
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=engg.hub.machineDesign_second)
- **Website:** [https://engineeringappsinfo.blogspot.com/app-ads.txt](https://engineeringappsinfo.blogspot.com/app-ads.txt)
- **Privacy policy:** [https://engineeringappsinfo.blogspot.com/](https://engineeringappsinfo.blogspot.com/)

## Description

Machine Design 2 is a comprehensive and free Chrome extension serving as a complete handbook for machine design topics. It includes 152 topics across 3 chapters, offering detailed notes, diagrams, equations, and formulas presented in simple, easy-to-understand English. This extension is perfect for quick learning, exam revision, and interview preparation.

Key features include detailed coverage of gears (spur, helical, worm, bevel), brakes, bearings (sliding and rolling contact), lubrication, and much more. Each topic provides practical and theoretical knowledge, making it an essential study aid for mechanical engineering students and professionals. With this extension, users can master complex machine design concepts efficiently in just minutes.

## Rankings

- #436,702 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_ADSERVICES_TOPICS`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `android.permission.POST_NOTIFICATIONS`
- `android.permission.READ_APP_BADGE`
- `android.permission.RECEIVE_BOOT_COMPLETED`
- `android.permission.SCHEDULE_EXACT_ALARM`
- `android.permission.VIBRATE`
- `android.permission.WAKE_LOCK`
- `com.anddoes.launcher.permission.UPDATE_COUNT`
- `com.android.vending.BILLING`
- `com.google.android.c2dm.permission.RECEIVE`
- `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE`
- `com.google.android.gms.permission.AD_ID`
- `com.htc.launcher.permission.READ_SETTINGS`
- `com.htc.launcher.permission.UPDATE_SHORTCUT`
- `com.huawei.android.launcher.permission.CHANGE_BADGE`
- `com.huawei.android.launcher.permission.READ_SETTINGS`
- `com.huawei.android.launcher.permission.WRITE_SETTINGS`
- `com.majeur.launcher.permission.UPDATE_BADGE`
- `com.oppo.launcher.permission.READ_SETTINGS`
- `com.oppo.launcher.permission.WRITE_SETTINGS`
- `com.sec.android.provider.badge.permission.READ`
- `com.sec.android.provider.badge.permission.WRITE`
- `com.sonyericsson.home.permission.BROADCAST_BADGE`
- `com.sonymobile.home.permission.PROVIDER_INSERT_BADGE`
- `engg.hub.machineDesign_second.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`
- `engg.hub.machineDesign_second.permission.C2D_MESSAGE`
- `me.everything.badger.permission.BADGE_COUNT_READ`
- `me.everything.badger.permission.BADGE_COUNT_WRITE`

## Review summary

Users find the app informative and helpful once it runs properly. Initially, it crashed on interaction but improved with updates. Some users dislike unrequested notifications arriving at inconvenient times and find pulsating menu icons distracting. Overall, the app is considered useful and nice after stability improvements.

### Pros

- Informative content
- Good and helpful app
- Works great after update
- Nice and wonderful experience

### Cons

- App crashes when pressing buttons before update
- Unrequested notifications at odd hours
- Irritating pulsating menu icons

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Source: [Chrome-Stats](https://chrome-stats.com/d/engg.hub.machineDesign_second)