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Type: Posts; User: Robert R

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  1. Place in a preheated oven at 375 deg F and bake...

    Place in a preheated oven at 375 deg F and bake until golden brown.
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    Tungsten has a brittle to ductile transition...

    Tungsten has a brittle to ductile transition temperature of 200 deg C. and higher. The temperature is determined by the manufacturing process and the annealing temperature. The blank may be forged,...
  3. You might also look at the CBN wheels for ID...

    You might also look at the CBN wheels for ID grinding from Diagrind. They may have the geometry that you need for the Fischer arbor in stock.

    The CBN wheels may be less expensive than...
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    Have you looked at Tony's web site? Page Title...

    Have you looked at Tony's web site?

    Page Title

    If you use Duckduckgo to search for online images, it is possible to make a informed guess as to what the the differences were between the lathe...
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    The wheelhead paint is not damaged by hydraulic...

    The wheelhead paint is not damaged by hydraulic fluid. It will lift off from the cast iron when exposed to water. The filter above the wheelhead serves two purposes. It collects grit and it stores...
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    Sunnen OD honing stones and holders

    This is the link to the Sunnen OD honing web page if anyone else is interested in restoring a grinding spindle

    https://www.sunnen.com/graphics/assets/documents/5f74c694ddff.pdf

    The stones with...
  7. Replies
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    Is this the machine that you have? SIP...

    Is this the machine that you have?

    SIP Hydroptic 8 Jig Borer

    38,000 pound machine, 4 HP vertical and horizontal spindles, horizontal spindle with tailstock, SIP 50 taper
  8. Replies
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    1,586

    Tony's Old Lathe website says that J&S sold...

    Tony's Old Lathe website says that J&S sold cylindrical grinders furnished with both hydrodynamic journal bearings and with ball bearings as a option. The ball bearing wheel heads were less expensive...
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    The easiest approach is to resurface the hardened...

    The easiest approach is to resurface the hardened steel spindle and then use the spindle as the reference for fitting the bronze bearing. The spindle can be resurfaced by making two end caps to...
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    The labyrinth seal should have no wear under...

    The labyrinth seal should have no wear under normal operating conditions. It could be damaged if grit or water found its way into the seal. I cannot answer the questions about wheel head disassembly,...
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    There are several Jones and Shipman users on this...

    There are several Jones and Shipman users on this forum. `However it's August and they will not be back from vacation for another two weeks. I will attempt to answer your questions, so as not to...
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    Impact cutoff shear

    The old school method is to use a impact cutoff machine. This consists, in this instance, of a pair of die blocks with a 3" X 3" opening which act as shears. The die blocks are forced to shear by...
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    Keep it simple. A upper and lower spinning drum...

    Keep it simple.
    A upper and lower spinning drum above and bellow the conveyor. They are running at a surface speed slightly faster than the conveyor. The lower drum acts as a anvil. The upper drum...
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    1,232

    Hello: I do not know what the pump shaft end...

    Hello:
    I do not know what the pump shaft end play should be. When the pump is in operation the shaft is pushed against the lower thrust bearing. During startup, the upper thrust bearing, if there...
  15. Replies
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    1,232

    Hello: The 22 stage 15 HP pump is what would be...

    Hello:
    The 22 stage 15 HP pump is what would be required for 50 GPM at a water depth of 600 feet and a 40 psi storage tank pressure. I am looking at the pump performance curves for the Franklin...
  16. Replies
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    1,232

    The pump is filled with a anti freeze mixture to...

    The pump is filled with a anti freeze mixture to allow it to be stored safely in freezing weather before installation. Once installed, water will slowly leak past the rotary shaft seal and maintain...
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    The motor is filled with a mix of deionized water...

    The motor is filled with a mix of deionized water and propylene glycol to prevent freezing at a temperature of -40 deg F. The maximum shelf storage time of a pump is two years at moderate...
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    This is the web page for the full specification...

    This is the web page for the full specification for SKF tapered roller bearings:


    Designation system

    SKF only makes tapered roller bearings to the P5 standard in metric sizes and to the 0 and...
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    There is one other explanation. SKF is not...

    There is one other explanation. SKF is not manufacturing the bearings to the P4 specification. The bearing distributors may have discovered that many of the wheel bearings do meet the specification....
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    No. SKF precision roller bearing...

    No.

    SKF precision roller bearing identification codes begin with a N design code. For example N 10 12 R TNHA/ HC5 SP

    In this example the SP code identifies the bearing with a P4 class...
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    Yes, the filter bags will burn. The high air flow...

    Yes, the filter bags will burn. The high air flow will not extinguish the fire.

    The filter relies on the multiple bounces of a spark as it passes through the collection hose and the bottom dust...
  22. When a bearing fails and locks up the spindle can...

    When a bearing fails and locks up the spindle can continue to rotate by sliding between the shaft and inner race ID surface. There will be significant heat generated and initially very little play.
  23. The chocolate ball mill machines, judging from a...

    The chocolate ball mill machines, judging from a duckduckgo search all seem to be made in Europe or Asia.

    The Packint mill is made in Italy. Their website is :About Us | PACKINT

    This is a...
  24. If there was air mixed in with the melt it would...

    If there was air mixed in with the melt it would tend to expand at the first opportunity and force the melt out of the spout. I see what appears to be a pneumatic operated ball valve below the spout....
  25. This grinding web site has a list of the books...

    This grinding web site has a list of the books that are available.

    ABRASIVE ENGINEERING SOCIETY

    Click on the books tab on the home page.

    My first recommendation for a how to do it book...
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