Live support chatWorm and Worm Wheel Design, Analysis, and Applications
Credit: 2 PDH
Subject Matter Expert: Jyoti Mukherjee, P.E., DEng, M.S., MBA, PGDBM
In Worm and Worm Wheel Design, Analysis, and Applications, you'll learn ...
- Properties and characteristics of worm gears
- Nomenclatures of worm and worm gear sets as per agma
- Worm and worm wheel set design principles
- Worm gear noise mitigation techniques
Overview
Preview a portion of this course before purchasing it.
Credit: 2 PDH
Length: 23 pages
Worm and worm wheel sets are useful for applications where a high gear ratio is required and when the shaft angle is 90 degrees, similar to bevel gears. Due to a high load carrying capacity at a lower speed, worm gear sets have been widely accepted in industry.
The teeth action in worm and worm wheel sets consists of sliding and rolling actions. A worm is basically a screw shaft which rotates about its own axis giving rotary motion to the worm wheel whose output shaft is at a right angle to the worm input shaft. The sliding and rolling action of the teeth are similar to those of rack and pinion set.
Because of this screw action, a worm gear set is very quiet during operation and vibration free. The speed transmission is very smooth and shock-free. Worms can rotate back and forth causing a smooth worm wheel rotation without any impact loading.
This course is devoted to the design and applications of worm gears and their analysis and properties. The contents of this course will help designers to a great extent in applying design principles for their design efforts. Details of gear classifications as per the American Gear Manufacturers Association (AGMA) will be briefly explained.
Applications, examples, and design discussions will be limited to helical gears that are mostly applied in machine tool applications. For applications such as heavy earth moving equipment, ship engines, automobile transmission, etc. worm gears are found to be very suitable and cost-effective when very high-speed reduction is necessary.
Specific Knowledge or Skill Obtained
This course teaches the following specific knowledge and skills:
- Worm and worm wheel arrangement
- Advantages and disadvantages of worm gears
- Common worm and worm wheel nomenclatures for design calculations
- Gear classifications and worm gear design considerations
- Worm and worm wheel material and heat treatment process
- Design calculations and wear rate of worm and worm wheel
- Lubrication of worm and worm wheel
- Gear tooth failure mechanism
- Gear force and stress analysis
- Gear shaft and support bearing arrangement
- Causes and mitigation of gear noise
Certificate of Completion
You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 10 questions. PDH credits are not awarded until the course is completed and quiz is passed.
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Preview a portion of this course before purchasing it.
Credit: 2 PDH
Length: 23 pages
