Randy_
Member
Trivia Contest Winners
(Day 8)
(Day 8)
Question:
If you were to run a Jet Mini non-VS lathe at its top speed for one hour per day for an entire non-leap year, how many revolutions would the spindle make? (Round off your answer to the closest million.)
Answer:
87 million
3975(per Jet manual) x 60min/hr x 365 days/yr = 87,052,500 revs
One of the reasons I asked this question is to get people thinking a little. There have been a number of posts recently by people who have had trouble with their bearings going bad. Most likely, these problems were due to defective bearings rather than just due to the bearings wearing out. But, this little calculation demonstrates that the bearings can accumulate a lot of wear in a relatively short period of time. Ball bearings are wonderful little devices and carry out their job admirably; but they do not have an unlimited life span. If folks who turn their work at top speed would just cut their turning speed in half, they would greatly reduce the wear and tear on their lathe bearings. Bearings are not particularly expensive and are reasonably easy to replace; but if you can extend the life of your tool by cutting back a little on the speed, why not. Not a terribly big deal; but it is something to think about that has probably escaped most folks.
The winners of the day 8 contest are:
pssherman and me2cyclops
The prizes are:
Package of antler and 3 gold Baron kits. Donated by dntrost (Dion)
and
Envelope of misc. blanks. Donated by Nolan.
*****CONGRATULATIONS*****
(Paul: I told you you needed to buy some lottery tickets!!)
Note: Both winners need to go to Ed & Dawn's profile page, select their IAP "contact info" and (EMAIL)them with:
1. Your screen name
2. Your real name & mailing address
3. Your phone number and
4. Your prize preference.
5. Please place the date and name of the contest you won in the subject line of your email.(Example: 8 Feb. Trivia Contest)
Please do "NOT" send your email to Ed's web site!!
First winner to respond each day will receive his/her choice of the two available
prizes!!
prizes!!
I would like to remind winners that the prize you will be receiving has been donated by a supporter of the IAP. Please take a minute to email a note of appreciation when you receive your prize.
Thanks.