Thread Number: 9211
spinning RPM's |
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Post# 171238 , Reply# 1   12/1/2006 at 20:21 (6,326 days old) by unimatic1140 (Minneapolis)   |   | |
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Post# 171242 , Reply# 2   12/1/2006 at 20:28 (6,326 days old) by kenwashesmonday (Carlstadt, NJ)   |   | |
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Is the tub bearing on these 2 machines known to wear due to the speed? Ken |
Post# 171273 , Reply# 3   12/1/2006 at 22:08 (6,326 days old) by dadoes (TX, U.S. of A.)   |   | |
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GE Harmony does 1010 RPM like a RapidDry. F&P is advertised as 1000 RPM, but my IWL12 does 1010 per the diagnosic feedback screen. Oasis and Cabrio reach similar speeds, 1000 or 950 I think. Robert, how does your Harmony's spin compare to your Unimatics? Does the Harmony have a fairly large diameter basket for similar G-force? How much effect does a perf'd basket have on extraction performance compared to a solid basket? Oasis and Cabrio also have large wash baskets. |
Post# 171278 , Reply# 4   12/1/2006 at 22:27 (6,326 days old) by unimatic1140 (Minneapolis)   |   | |
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Hi Ken, as for the bearings in the GE we don't really have much info to go on, there is only one working machine left known in the world at this time. As for the Unimatic they will spin perfect for 50 years without any bearing issues as long as the top seal stays intact and does not allow any water to get into the mechanism. If water gets to the bearings they will go out almost immediately. I've seen that happen on a few machines, but this was only after years of use. Hi Glen, the Harmony spins well, but I don't think it spins as well as an 1140rpm 4 minute spin, but I'm not exactly sure. It certainly does not spin out as well as a 8 minute 1140rpm spin in my Super Unimatic using my Hot Suds-Towel Cycle. You know what would be fun, I have a 25lb scale in the basement, it would be fun to take four large towels and put them through a rinse and spin in each of my machines and weigh the towels after the final spin and see how each machine does, including the Harmony and Maytag Neptune Top-Loader. Oh why do I do this to myself. |
Post# 171290 , Reply# 5   12/1/2006 at 22:59 (6,326 days old) by appnut (TX)   |   | |
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Post# 171318 , Reply# 7   12/2/2006 at 00:04 (6,326 days old) by appnut (TX)   |   | |
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Post# 171349 , Reply# 8   12/2/2006 at 01:47 (6,326 days old) by panthera (Rocky Mountains)   |   | |
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I think the slow spin speed of most TLs is a result of several factors. One, the larger the diameter of the drum, the harder it is to balance the load being spun. If I remember my physics, if the diameter is doubled, the problem increases by a factor of four; if the diameter is trebled, the problem by nine and so on... Secondly, these early machines with their very high speeds were built by engineers. The generations after them - every one - were built down in quality to fit specific niches. Those niches were and are specified by marketing in-duh-vi-duals. If they spun that fast, their little baskets would just burst at the seams. But water extraction is not exclusively a factor of speed; AEG back in the 1970's managed to get nearly as much water out through a well designed spin cycle running at 800rpm then SIEMENS machines running at 1000... FLs have several balancing advantages over TLs. For the same size load, their baskets are smaller, so have less "force" to cope with. It is also easier and cheaper to balance them using chunks of concrete on top of the drum. Finally, direct drive (the real stuff) motors or even belt driven electronically controlled motors are old, old technology in FLs. Engineers learned decades ago how to use fuzzy logic to achieve enough balance to really spin the clothes out at high speed. I am looking forward to Robert's little experiment. Enquiring minds so want to know! |
Post# 171434 , Reply# 9   12/2/2006 at 20:11 (6,325 days old) by jonv112 ()   |   | |
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The Oasis/Cabrio step-spin up to 1050 RPM. The clothes come out VERY dry, and with little wrinkling. |