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Questions tagged [torque]

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Finding Required Torque of a Motor to Lift Platform

My group is attempting to size a motor for a gearbox we designed. Inside the gear box there is two spur gears with D=4”. Along the same shaft as the gears, there is a 3” diameter sheave that are ...
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20 views

Pottery wheel motor torque and shaft vibrations

I’m thinking of making a pottery wheel (can chose in between solid or weight at rims) where a wheel of 12” diameter and about 5 kg weight would be rotated with the help of motor. At present, I can ...
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1answer
33 views

Understanding the torque of a motor/gearbox combo

Imagine a typical DC motor / planetary gear combos. Is my thinking correct: Say you have a 100 kg mass on a frictionless surface. The gearbox output shaft has a 0.10m arm with which you push the ...
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1answer
20 views

How to use the moment-of-momentum equation for water flowing through a pipe?

I am having a lot trouble understanding this problem, I don't even know where to begin or how to articulate my difficulties, but I will try my best. Is the question asking to find the torque ...
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1answer
33 views

Calculate hydraulic torque from motor HP, hydraulic pump and gearbox

I am curious about the design considerations for a hydraulic system. Let's say you have a 3HP 1200RPM motor you also have a hydraulic pump that's rated 4LPM and pressure of 40MPA rated for 40RPM MAX ...
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8 views

How to Calculate the Speed Ratio between two rollers (overdrive of take-up roller) to provide a required Tension web tension

I have a web feed system with a re-winder and I need to apply a tension to the web. I have a driven roller and a take-up roller. I need to calculate how much overdrive to supply to the takeup roller ...
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2answers
35 views

Reacting Propeller Torque?

A motor is used to drive a shaft that is geared through 1:1 bevel gears to a propeller. The shafts are mounted on bearings in a hard casing that is attached to a 2nd ground. I want to know if the 2nd ...
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Calculate additive RPM required in Feed Forward Web Tension Control

In a web tension control system, where feed forward is to be used; a tension set point is desired lets say 20lbs. A load cell system provides feed back A roller on top of two load cells). There will ...
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3answers
62 views

Why is the rear wheel of the Penny-farthing so small?

I see a lot of people asking why the Penny-farthing's front wheel is so big, and I think I've read enough materials to understand why (at least, at the most basic level). But even so, I feel that the ...
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0answers
37 views

Performance of RC car under different gear ratio, measured data vs hypothesis

Assuming the driveshaft of the rear wheeled drive RC car follows the linear DC motor theory for stall torque and no-load RPM, also voltage supplied is constant and no inductance as well. Note: the ...
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2answers
44 views

Resulting torque on the cross section

I have trouble solving part A of the question. I thought the resulting torque would just be 10k * L of the beam.
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2answers
48 views

Max torque allowed on cypress wooden beam

I am trying to calculate the maximum torque that a piece of cypress wooden beam can handle before it snaps or becomes structurally unsound. I know this will depend on the thickness and width of the ...
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40 views

load in a stepper motor

I want to move a 7 kg object linearly, using a stepper motor. How can I determine the torque required by a stepper motor depending on the load?
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1answer
40 views

Understanding Motor Torque calculations

I have an Aluminium square cross sectional rod of $20mm$ X $20mm$. Length 700mm. At the end of this rod there is a mass of $660$ $g$ attached. My question is what torque do i need to lift this mass up ...
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0answers
31 views

1 motor vs 2 motors electric go kart

I am in the process of building an electric go kart, and I came across the expenses associated with such a build. I noticed that motors in the 4kw range are pretty expensive. My only option for ...
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0answers
45 views

Measurement of ICE torque

I'm seeking a precise description of engine torque. We talk about torque in terms of the twisting force that the piston exerts on the crankshaft with a radius equivalent of the rod throw. Assume ...
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28 views

Locked rotor torque /Starting Torque of DC Motor

I'd like to know how to determine the torque of a starting motor, and how can I see it if I purchase a DC motor. Thank you.
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1answer
52 views

How to calculate the torque of 4 wheeled vehicle before slipping

I have a 4-wheeled vehicle that is 10 x 10 cm. Each wheel has its own motor. The wheel diameter is 3.1 cm. The total weight of the vehicle is 500 grams. The friction ...
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1answer
32 views

Can strain gauges radially be mounted on 8 mm diameter shaft for torque measurement for effective result?

I need to measure a torque on an 8mm shaft of an electrical motor on a prototypical device. The expected torque is ~15 Nm and for the data processing I intend to use an Arduino. One requirement which ...
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0answers
67 views

Determining required torque for a chain and sprocket conveyor belt

I am working on a project for an electronics class, but need some help with one of the mechanical details. My job is to program a stepper motor to move a conveyor belt back and forth as specified. The ...
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2answers
34 views

smaller radius requires less torque?

I have been trying to build an electric go kart, and power requirements (as always) have been the problem. I have been going through some formulas to find out how big of a motor I would need from how ...
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2answers
61 views

How would you calculate the force needed to rotate along the x axis vertical earth anchor in dirt?

I'm a high school student who hasn't had the pleasure of taking physics yet, so forgive me if the answer is obvious. The problem I have involves an earth anchor drilled vertically into the earth. I ...
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1answer
44 views

What does the torque curve of an engine mean?

I have been trying to understand the torque curve and power curve of an engine. From what I have read and understood I know that the torque curve and power curve is has a peak at a particular RPMs(RPM ...
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0answers
17 views

Torque on a siezed part [closed]

I have a vertical load (F) acting at a distance from the edge of the cylinder. The load is acting on the cylinder via chunk of steel sliding across the surface of the roller. The coefficient of ...
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1answer
44 views

What is the type of nut and tool to be used to unscrew?

Please see the two images. I marked a nut and locking part. what type of nut and lock mechanism it is? and what is the tool I have to use to open it?
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1answer
97 views

The name of this cross-sectional shape

What is the cross-sectional shape in blue called? The shape, used on the shafts, is used for torque transfer, gears or similar. The three arcs are same diameter as the ball bearing ID, so bearings ...
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0answers
47 views

How to calculate torque requirement for vehicle with Mecanum wheels?

What are the changes specific to mecanum wheels when calculating torque requirements for a vehicle. I have the data for the vehicles mass, top speed and top acceleration.
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2answers
26 views

Understanding input shaft torque for a motor without a shaft

I'm looking through this catalog at the motorized rotary tables and it says on page 114 that the maximum input shaft torque is 150 oz-in.The rotary table doesn't have a shaft so I'm confused as to how ...
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1answer
43 views

What to do to increase the hp of a gx-160 engine?

I saw a youtube video of an ultralight airplane with a 5.5hp engine that has been modified to produce 30hp. So how do I modify a 5.5hp engine to make 15hp+ of output?
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2answers
85 views

How would I calculate the torque need to move the trailer?

I want to find out how much torque will be needed from my motor if I want to pull a mass. So imagine a car towing a trailer.How would I calculate the torque need to move the trailer? I found the ...
2
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1answer
53 views

Calculating the torque requirements of the motor for a specific case

I want to use a DC 12/24V motor to rotate an assembly of glass tubes(image attached) through a hollow shaft of 25mm OD and 22mm ID, the shaft is supported on bearings on both the sides(assume minimum ...
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2answers
36 views

Theoretical maximum generated power for a given torque

Being an electrical engineer, I'm hoping someone will help me double-check my math. I have a small circuit that I want to power for years that consumes an average 10uA at 3V. I'd like to power this ...
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2answers
102 views

Calculate maximum acceleration of a car from rest (optimum launch)

First disclaimer: I have a background in math, but I'm no expert in engineering or physics. This is the first question I've ever posted and I think it belongs here, but please let me know if belongs ...
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0answers
43 views

Driving parallel shafts with single motor and torque required to drive them

I want to drive 4 shafts in parallel with a single motor. The shafts will be driven by chain drive using double single sprockets as shown in figure. If 1 kg-cm of torque is required to drive a single ...
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1answer
78 views

Stepper motor skipping steps

I'm using two stepper motors (datasheet below) to pan and tilt a platform. The bottom motor spins fine without the breadboard glued to the top platform. However, it behaves unpredictably and skips ...
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0answers
236 views

How does one calculate torque required to lift a quadruped body with gear-worm driven legs?

I am designing a quadruped robot with legs driven by gear-worm motors as opposed to hydraulics or pneumatics. However, I am stuck at the calculations for the motors, motor drivers, and power supply ...
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1answer
218 views

How to find required clamping force of bolts to prevent flange faces from twising due to torque?

I have a gearbox adapter that bolts onto a flange and I need to work out how much clamping force is needed to prevent the faces from slipping and keep the bolts in tension rather than shear when ...
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0answers
41 views

How to calculate the torque for the following problem:

i have some doubt in torque calculation for the following: I want to lift 25Kg mass(0.7m length) which is directly coupled with the shaft(5mm radius). so now the overall radius i have taken for ...
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2answers
57 views

How to calculate torque needed to stop a rotating beam over x seconds

I have a large boom of a radio antenna weighing $3,500 kg$ which is rotating at $0.5 RPM$. The antenna is a T shape and the boom radius is $14m$. The power to the motor is cut off suddenly and the ...
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0answers
142 views

Design torque calculation for an electric vehicle

We are building an electric vehicle. How is the required torque determined for our vehicle for a given total weight of the vehicle, highest vertical gradient and maximum acceleration? We need this ...
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0answers
36 views

Torque and Power Selection of DC motor

I have an object and I know the Inertia $(I)$ around the axis it needs to rotate at a constant speed $ (w) $. The operating acceleration torque of the load must be the product of Inertia and the ...
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0answers
8 views

How do I design an experiment to measure torque in series DC motor which uses leadscrew to transmit power?

I am designing a variable buoyancy system in which trapezoidal lead screw is used to transmit power from motor to piston using a connecting tube.The piston is used to pump oil in and out of the ...
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0answers
148 views

Extruder torque Calculation

I am wondering if there a formula or a guidebook in calculating the torque of an extruder. Currently I'm studying as an electrical engineering student and I need to choose an AC motor that's able to ...
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2answers
28 views

Motor coupling connection

I choose an AC motor (IEC) with frame number 71. The key on the shaft of the motor is $5mm,$, $4.23 mm$ and $6 mm$ in diameter. At other hand i cant't find a safety coupling (torque limiter) with ...
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0answers
71 views

How to regulate torque/RPM on an IWD vehicle

Generally, I'm interested in simple (DIY) electric vehicle design problems. I saw some photos of electric vehicles as in the following pic: or also you could check this youtube video. The vehicle is ...
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0answers
60 views

Torque for Spherical-robot

I need to build a spherical robot, and I'm calculating the torque, but I’m unsure about the results. It will be 3kg (hopefully less), radius of 22cm (it’s sphere of 44cm) and I wish it to move 0.50m/s²...
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0answers
22 views

Commercial electric motor with integrated torque sensor and torque control [closed]

Are there any commercial solutions for electric rotary motors with integrated torque sensor and torque control? I'm only aware of www.sensodrive.de which are essentially the drives used in the DLR/...
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1answer
111 views

How to design a casting machine?

I was wondering, what are the factors to consider or how to find the required technical specifications for the new machine? For example, if we consider a design of horizontal centrifugal casting ...
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0answers
24 views

Creating torsion for a small robot arm

i am trying to make a small, simple 3d printed robot with humanoid characteristics. i am working on its arm at the moment. it is being driven by a small sg90 servo motor which pulls the forearm about ...
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2answers
93 views

How much torque will I need to pull a 2250Kg load?

I need to use this to find a motor that will be able to pull at most 2250 kg at a 1.5 m/s pace. At peak acceleration, I would like this to accelerate at 0.5 m/s2. The area that the load ...