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Re: Solid Bearings vs. Roller Bearings
Dave, all those Kawasaki KZ 900/1000/1100's & Suzuki GS 1000/1100/1150's all used roller bearing cranks and rods. The Japanese started phasing them out in the late 80's. None of the new bikes today
Dave, all those Kawasaki KZ 900/1000/1100's & Suzuki GS 1000/1100/1150's all used roller bearing cranks and rods. The Japanese started phasing them out in the late 80's. None of the new bikes today
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By
Todd Horton
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#148569
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Freight Cars Journal #8 help
Dear group: I am looking for the Reading USRA mill gondola drawings that were in Freight Cars Journal issue #8
I would be glad to pay for a scan of them.
Please reply to <lrkdbn@...>
Thank
Dear group: I am looking for the Reading USRA mill gondola drawings that were in Freight Cars Journal issue #8
I would be glad to pay for a scan of them.
Please reply to <lrkdbn@...>
Thank
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By
lrkdbn
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#148568
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Re: Solid Bearings vs. Roller Bearings
Bob, you may have seen the same in a Railway Age article from the 1940 time span. It strikes a familiar note with me also. I cannot be certain however that is only 10 years and twenty large books to
Bob, you may have seen the same in a Railway Age article from the 1940 time span. It strikes a familiar note with me also. I cannot be certain however that is only 10 years and twenty large books to
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By
np328
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#148567
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Solid Bearings vs. Roller Bearings
The industry had long time experience with roller bearings applied to passenger cars, both heavy weight and light weight and steam locomotives. Great Northern, a paragon of thrift, started installing
The industry had long time experience with roller bearings applied to passenger cars, both heavy weight and light weight and steam locomotives. Great Northern, a paragon of thrift, started installing
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By
gary laakso
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#148566
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Re: Solid Bearings vs. Roller Bearings
Todd,
"Solid bearings have less drag than roller bearings at speed."
Not true for freight cars. I can't comment on the HP difference for motorcycle engines, but the cost of a RB equipped motorcycle
Todd,
"Solid bearings have less drag than roller bearings at speed."
Not true for freight cars. I can't comment on the HP difference for motorcycle engines, but the cost of a RB equipped motorcycle
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By
devansprr
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#148564
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Re: Solid Bearings vs. Roller Bearings
Very close. but there is a wedge above the brass/babbate bearing that needs to be removed before the bearing can be removed.
Howard (son of a...carman) Garner
Very close. but there is a wedge above the brass/babbate bearing that needs to be removed before the bearing can be removed.
Howard (son of a...carman) Garner
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By
earlyrail
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#148563
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Re: Solid Bearings vs. Roller Bearings
Bob,
What is the date of that volume?
Specific to the "over-35" claim - the early roller bearings were also oil filled - an appeasement to the old concept that oil immersion in bearings was critically
Bob,
What is the date of that volume?
Specific to the "over-35" claim - the early roller bearings were also oil filled - an appeasement to the old concept that oil immersion in bearings was critically
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By
devansprr
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#148562
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Re: Solid Bearings vs. Roller Bearings
Solid bearings have less drag than roller bearings at speed. The initial start up from a dead stop might favor roller bearings but the mechanical drag of metal against metal in a roller bearing
Solid bearings have less drag than roller bearings at speed. The initial start up from a dead stop might favor roller bearings but the mechanical drag of metal against metal in a roller bearing
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By
Todd Horton
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#148561
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Re: Solid Bearings vs. Roller Bearings
Bob,
This doesn't answer your question, but many railroads recognized the advantages of roller bearings on freight cars at least by the end of WWII. I have read that railroad
Bob,
This doesn't answer your question, but many railroads recognized the advantages of roller bearings on freight cars at least by the end of WWII. I have read that railroad
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By
Garth Groff <sarahsan@...>
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#148565
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Re: Chicago Great Western Caboose
As a side bar, the under frame from caboose 354 was used for transfer caboose 176.
http://freight.railfan.ca/cgi-bin/image.pl?i=cgw176&o=cgw
Jason
As a side bar, the under frame from caboose 354 was used for transfer caboose 176.
http://freight.railfan.ca/cgi-bin/image.pl?i=cgw176&o=cgw
Jason
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By
Jason Kliewer
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#148560
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Re: Solid Bearings vs. Roller Bearings
Another important advantage to roller bearings is the markedly reduced initial resistance, meaning that roller bearings start rolling with much less effort than solid bearings. Up here in North
Another important advantage to roller bearings is the markedly reduced initial resistance, meaning that roller bearings start rolling with much less effort than solid bearings. Up here in North
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By
Robert Heninger
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#148559
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Re: Chicago Great Western Caboose
January 1960 Model Railroader has a drawing of 357.
Jason
January 1960 Model Railroader has a drawing of 357.
Jason
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By
Jason Kliewer
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#148558
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Re: Solid Bearings vs. Roller Bearings
Roller bearings don't get hot boxes; solid bearings do. Roller bearings can fail, but I believe that happened much less frequently than hot boxes with solid bearings.
Maintenance is easier because
Roller bearings don't get hot boxes; solid bearings do. Roller bearings can fail, but I believe that happened much less frequently than hot boxes with solid bearings.
Maintenance is easier because
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By
Todd Sullivan
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#148556
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Re: Solid Bearings vs. Roller Bearings
Reduced maintenance for sure. Roller bearings have gotten so reliable that they are essentially maintenance free for the life of the wheelsets, and are all (wheels, axles; and bearings) changed at
Reduced maintenance for sure. Roller bearings have gotten so reliable that they are essentially maintenance free for the life of the wheelsets, and are all (wheels, axles; and bearings) changed at
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By
destorzek@...
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#148555
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Re: Solid Bearings vs. Roller Bearings
Overall reliability? Rolling resistance below 35mph? Not included in my understanding of mechanical considerations, but certainly a heavy consideration would be maintenance.
Thanks!
--
Brian
Overall reliability? Rolling resistance below 35mph? Not included in my understanding of mechanical considerations, but certainly a heavy consideration would be maintenance.
Thanks!
--
Brian
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By
BRIAN PAUL EHNI
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#148554
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Re: Solid Bearings vs. Roller Bearings
Cold temperatures and reduced maintenance and labor costs.
Brian J. Carlson
Cold temperatures and reduced maintenance and labor costs.
Brian J. Carlson
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By
Brian Carlson
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#148553
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Solid Bearings vs. Roller Bearings
I found this statement in Volume 72 of the Proceedings OfThe American Railway Engineering Association:
"There is no appreciable difference between solid bearingsand roller bearings above 35
I found this statement in Volume 72 of the Proceedings OfThe American Railway Engineering Association:
"There is no appreciable difference between solid bearingsand roller bearings above 35
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By
thecitrusbelt@...
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#148552
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Re: Chicago Great Western Caboose
I could swear (nicely) that I have seen plans for CGW 355 published in one magazine or another. This tingle a brain memory cell in anyone?
Brian Chapman
Cedar Rapids, Iowa
I could swear (nicely) that I have seen plans for CGW 355 published in one magazine or another. This tingle a brain memory cell in anyone?
Brian Chapman
Cedar Rapids, Iowa
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By
Brian Chapman
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#148551
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Re: WP 1947 Paint Scheme
Pete,
The color of the original Roundhouse models was a good match for the rich red-oxide paint the WP favored up until the early 1950s. If your cars came painted and lettered
Pete,
The color of the original Roundhouse models was a good match for the rich red-oxide paint the WP favored up until the early 1950s. If your cars came painted and lettered
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By
Garth Groff <sarahsan@...>
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#148557
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Re: WP 1947 Paint Scheme
Fred Jansz noted a Tru-Color WP red in his upgrade on the Resin Car Works blog.
http://blog.resincarworks.com/western-pacific-50-foot-automobile-box-car/
Eric Hansmann
El Paso, TX
Fred Jansz noted a Tru-Color WP red in his upgrade on the Resin Car Works blog.
http://blog.resincarworks.com/western-pacific-50-foot-automobile-box-car/
Eric Hansmann
El Paso, TX
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By
Eric Hansmann
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#148550
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