calculation of three stage gear

  • Gear Train : Gear Ratio, Torque and Speed Calculations ...

    Step-2: Calculate GR in between Gear-2 and Gear-3 (Idler and Driven Gear). GR(2-3) = 10/20 = 0. 5. Step-3: By Multiplying gear-ratio between 1 to 2 and 2 to 3. We will get resultant GR between Driver and Driven Gear. Resultant Multi Gear Train GR = 0. 5 × 0.5 = 0.25. From the above, calculated gear ratio we can calculate the speed and torque ...

  • Gears, Velocity Ratios and Mechanical Advantage

    • You can calculate the gear ratio by using ... Ratio: 1:3 Gear Ratio = # teeth input gear / # teeth output gear = torque in / torque out = speed out / speed in driven gear driving gea. Gearing Up and Down ... ratio of the gear stages that follow it. Pulleys and Belts

  • Case Study Analysis Planetary Gearbox Sept 5 2006

    3 of 12 Case Study Two Stage Planetary Gearbox - Ken Singleton Sept 4, 2006 st1 Stage 2nd Stage SS Sun Gear RPM (Input Speed) 1782 -234.838 RT Ring Gear Teeth 112 73 PT Planet Gear Teeth 47 27 ST Sun Gear Teeth 17 17 Tvalue Train Value 0.151786 0.2328767 CS Carrier RPM -234.838 -44.358 PS Planet RPM 559.612 119.931 PSabsolute Planet RPM Absolute -324.775 -75.573

  • Spur Gear Calculator

    Phone - (440) 251-4290 Fax - (440) 639-2838 E-Mail - [email protected]


    In addition, for the third helical gear stage, d w 23 can be determined by the following equation [20]: d a u uww23 3 3 3 2 / 1 (3) Where, u3 is the gear ratio of the third stage. From equations (1), (2) and (3), it is noticed that for calculating the gearbox length L it is necessary to determine R e,

  • How to Get the Most Realistic Efficiency Calculation for ...

    The power loss and temperature calculation was applied to a gearbox (Fig. 1, left) recently developed by the company ZAE. The gearbox in question is a three-stage cylindrical bevel gearbox from the latest series, which has a nominal torque of 1,200 Nm.

  • Multi-stage Gearbox

    A two-stage gearbox or a three-stage gearbox can be achieved by simply increasing the length of the ring gear and with serial arrangement of several individual planet stages. A planetary gear with a ratio of 20:1 can be manufactured from the individual ratios of 5:1 and 4:1, for example. Instead of the drive shaft the planetary carrier contains ...

  • What is a gear stage?

     · In our example, we would find the gear ratio by dividing the thirty teeth of the driven gear by the seven teeth of our new driver. 30/7 = about 4.3 (or 4.3 : 1, etc.) This means that the driver gear has to turn about 4.3 times to get the much larger driven gear to turn once. 3. If desired, find the gear ratios for the intermediate gears.

  • MAAG WPV three-stage gear unit for vertical mills

    The MAAG WPV three-stage bevel and planetary gear units of FL MAAG Gear, all of which are equipped with slide bearings, have reached an impressively co...

  • The Calculation of Meshing Efficiency of a New Type of ...

    In the end, the applicability of the calculation is introduced. Key words: conical involute gear, gear transmission, tangential modification, meshing efficiency Highlights • A new type of conical involute gear for anti-backlash is introduced. • The meshing states and calculation of correlative parameters of the proposed gear are presented.

  • 4 Easy Ways to Determine Gear Ratio (with Pictures)

     · Divide the number of teeth on each "driven" gear by the number of teeth on the "drive" gear for each interlocking set of gears to calculate the intermediate gear ratios. In our example, the intermediate gear ratios are 20/7 = 2.9 and 30/20 = 1.5. Note that neither of these are equal to the gear ratio for the entire train, 4.3.

  • 9 speed gear_box

     · Step - 5 " Calculation of number of number of teeth in gears " Start from the final stage First find the number of teeth for maximum speed reduction pair. Assume the number of teeth in the driver gear (It should be above 17) The sum of number of teeth in meshing gears in a stage …

  • Calculating compound gear ratios

     · How to work out good tooth counts to come up with a desired gear ratio for multi-stage gearing. gear generator progra...

  • Frequencies of a gear assembly | Power-MI

    The mathematical method for calculating the assembly phases (N A) is done by calculating the greatest common divisor of the number of teeth of both gears. In our particular case of the 15 teeth gear, its prime factors are 5, 3 and 1, since 5x3x1 is 15. The prime factors of the 9 teeth pinion are 3x3x1.

  • Design and Optimization of 2-Stage Reduction Gearbox

    width of teeth for pinion and gear pairs of the stages were optimized and gear ratios were determined in respect to the objective function and design constraints. Design optimization of a two stage gearbox by using KISSsoft was accomplished by readily supplying the design parameters requested. Index Terms—Design optimization Gearbox KISSsoft

  • How to do motor gear reduction calculation

     · 3. Calculation method of gear train: reduction ratio = number of driven gears ÷ number of driven gears (if multi-stage gear reduction, then the number of driven gears of all pairs of gears that mesh with each other ÷ the number of active gear teeth, and then the result will be Multiply, NRV reducer.

  • Gear Design Equations and Formula | Circular Pitches and ...

    Spur Gear Design Calculator. a When gears are preshave cut on a gear shaper the dedendum will usually need to be increased to 1.40/P to allow for the higher fillet trochoid produced by the shaper cutter. This is of particular importance on gears of few teeth or if the gear blank configuration requires the use of a small diameter shaper cutter ...

  • Can you please do the following calculations? Given ...

    Therefore, for a 35 of reduction ratio, you need 3-stages, but for a reduction ratio of 15, you can get it with 2-stages 4. Decide your module number. 5. Calculate and decide number of theeths of the gears according to reduction ratios in each stages. 6. Decide the thicknesses of the gears. 7. According to the thicknesses of the gears, decide ...

  • Planetary Gears

     · Planetary Gears – a masterclass for mechanical engineers. August 30, 2018. Steven Weinberg. Planetary gear sets contain a central sun gear, surrounded by several planet gears, held by a planet carrier, and enclosed within a ring gear. The sun gear, ring gear, and planetary carrier form three possible input/outputs from a planetary gear set.

  • Spur gear calculation

    Pitch Circle spur gear 1: Pitch Circle spur gear 2: Centre Distance: A simple formula for calculating internal gears. Pitch Circle: Number of Teeth Z: Module: Diam. Pitch Circle: Internal diameter: Number of Teeth Z: Module: Diam. Internal Teeth: Centre between pinion shaft meshing with a gear Pitch circle ring gear:


    3 STAGE EPICYCLIC PLANETARY REDUCTION GEAR UNIT OF A FLIGHT VEHICLE K Akhila1* and M Amarnath Reddy2 *Corresponding Author: K Akhila, [email protected] In this project, a three stage epicyclic planetary reduction gear unit is designed to meet the output specifications. All the components are modelled in CATIA to check the assembly and the

  • Gear Train Calculator

    Select a wide range of teeth counts from 3 to 400. Multi–stage compound gear trains — choose number of stages from 1 to 6 (2 to 12 gears). Practical limit is 5 stages. Allow tolerance or get the most accurate result possible. Optional high reduction ratio pre-stage. Examples are pendulum/escape–wheel, pawl/ratchet or worm gear.


    The two stage reduction gearbox consists of three shafts and four gears (two driver gears, two driven gears). The driver gear of the first stage of reduction which is probably the smallest gear in the entire reduction gear box is present on the input shaft which gets the input from the continuously variable transmission (CVT).

  • Understanding, Selecting and Applying Planetary …

    Single-stage planetary gearheads provide possible gear ratios ranging from 3:1 to 10:1. The gear ratio can be no higher than 10:1 because the pinion gear can be made only so small. Gear ratios of less than 3:1 are not possible with a planetary design since the pinion and outer ring gear would

  • Tutorial: Calculation of a two stage gearbox

    Tutorial: Calculation of a two stage gearbox This tutorial shows the usage of MESYS shaft calculation with systems of parallel shafts. A two stage gearbox is defined using the program. Please start with the tutorial for shaft calculation to see how ... The gear calculation can be opened by selecting the gear pair in the system tree.

  • —Planetary stage design, shaft design, bearing selection ...

    planet gear is one member of them. It contains two main stages: the planetary spur gear and the cycloid gear. The details can be observed on the picture below, the first stage is a simple planetary gear and the second stage is the cycloid gear. Figure 4Two stage of the RV cycloid gearbox

  • Planetary Gear Simulator

    Sun Teeth. Planet Teeth. Ring Teeth. Sun Speed. Carrier Speed. Ring Speed. Requires an HTML 5-compliant browser. Gear image generation code from ...


    • Describe a compound gear rain. • Describe three types of epicyclic gear boxes • Solve gear box ratios. • Calculate the input and outputs speeds and torques of gear boxes. • Calculate the holding torque on gear box cases It is assumed that the student is already familiar with the following concepts. • …

  • Tutorial: Calculation of a planetary gear train

    Tutorial: Calculation of a planetary gear train This tutorial shows the usage of MESYS shaft calculation with shaft systems. A two-stage planetary gear stage is defined using the program. Please start with the tutorial for shaft calculation to see how to introduce geometry and supports for single shafts. The model is built in two steps.

  • Mechanics and Machine Design, Equations and Calculators ...

     · Mechanics and Machine Design, Equations and Calculators, Design of Load Carrying Shaft With One Pulley & Supported by two Bearings, Flywheel Effect or Polar Moment of Inertia, Lifting Boom, Davits Application and Design Equations, Large and Small Diameter Lifting Pulley / Drums, Two Lifting Lifting Pulley''s Mechanical Advantage, Multiple Pulley''s Lifting Mechanical Advantage …

  • Gear ratios and compound gear ratios

    Determining compound gear ratios (multiple stages) When a gear train has multiple stages, the gear ratio for the overall gearing system is the product of the individual stages. For example, for the gear at left the blue gears are 7 and 21 teeth, while the green gears are 9 and 30 teeth. Thus, the first gear ratio is 7:21 and the second is 9:30.

  • 3 Stage Planetary Gearbox,Planetary Gear Manufacturers

    With your planetary gear calculator, you can choose from a wide range of speed and torque outputs. Our 3 stage planetary gearboxes are available in modular design allowing for easy customization. In addition to these, every 3 stage planetary gearbox has a robust and stable support. This ensures every gear box offers a high torsion rigidity.

  • Basic Gear Terminology and Calculation | KHK Gears

    Basic Gear Terminology and Calculation / Let''s learn the basics of Basic Gear Technology ! Gear size, pressure angle, number of teeth…we introduce the basic terminology, measurement, and relational expressions necessary to understand basic gear technology. ... Initial Stage Pitting.

  • Helical Gear Calculations, Crossed Helical Gear Meshes ...

    Table 7-1 presents equations for a profile shifted screw gear pair. When the normal coefficients of profile shift x n1 = x n2 = 0, the equations and calculations are the same as for standard gears. Standard screw gears have relations as follows: 7.3 Axial Thrust Of Helical Gears In both parallel-shaft and crossed-shaft applications, helical gears develop an axial thrust load.

  • Steps to calculate a gear ratio – Blog CLR

    How to calculate the gear ratio. Calculating a gear ratio can be accomplished in a number of ways. For example: Calculating the gear ratio of bevel gears. When referring to bevel gears, we need to consider that it will be equivalent to the number of teeth of the driving gear divided by the number of teeth of the driven gear (RT= Z1 / Z2).


    set. Helical gears are superior to spur gears in most applications, especially where noise must be kept to a minimum, or the pitch line speed is in excess of 10 m/s. These gears are also easier to design to fit given centre distances because there are more parameters that can be rearranged. The main disadvantage of the helical gear -

  • How to Calculate Gear Ratios and Torque | It Still Runs

    Divide the second gear''s radius by the first gear''s. If the second gear, for instance, measures 0.3 meters in radius: 0.3 / 0.15 = 2. The system''s gear ratio is 2-to-1. Multiply the gear ratio by the input torque that you calculated in Step 1: 2 x 600 = 1,200 newton-meters. This is the gearbox''s output torque.

  • Design Procedure for Helical Gear

    1. Calculation of gear ratio (i): where, N A and N B = speed of the driver and driven respectively, and Z A and Z B = Number of teeth on driver and driven respectively. 2. Selection of material. Consulting Table 5.3, knowing the gear ratio i, choose the suitable material. 3. If not given, assume gear life (say 20000 hrs) 4. Calculation of ...