[Dsg-rich] RICH Eye Bolt

Tomassini Sandro sandro.tomassini at lnf.infn.it
Wed Feb 22 12:02:07 EST 2017


Hi George
The reason to have at least 50mm is since the eye bolt is screwed to an aluminum alloy part so we need more material to get the required capacity.
60 mm because the tapped hole is not deeper than 60 mm.
Regads
Sandro

Dr Eng. S. Tomassini

Il 22/feb/2017 14:45 George Jacobs <jacobsg at jlab.org> ha scritto:
>
> The correct hoist ring is on order. But I have a question. What are the engineering/technical requirements that the length of the M24 bolt must be <60mm and > 50mm?
>
> George
>
> On 2/22/2017 2:55 AM, Tomassini Sandro wrote:
>>
>> Dear All,
>>
>> the eye bolt suggested by George is fine for us but the length of the threaded  shank ( L in the figure below) MUST be at least 50 mm and less than 60 mm for other reasons.
>>
>> The thread in the tapped holes on the RICH part is M24 standard
>>
>> We can provide the eye bolt TAW 3 (M24x50) that you can find on page 145 of the attached pdf file.
>>
>> If you already have something similar (Hope Doug has) we can use it or if you want to procure something similar you can procede too.
>>
>> In any case let us know ASAP what you  have decided.
>>
>> Many Thanks
>>
>> Sandro
>>
>>
>>
>> Il 21/02/2017 16:55, George Jacobs ha scritto:
>>>
>>> This eye bolt cannot be used for the same reason as the other, it is the wrong lifting device for the job.
>>>
>>> On 2/21/2017 9:36 AM, Dario Orecchini wrote:
>>>>
>>>> Hello Tyler,
>>>> we wil use a rotable eyebolt M24X60mm . The M24 holes on the detector are dead with a depth of more or less 50mm.
>>>> The lenght of the useful thread will be 45mm.
>>>>
>>>> Attached the datasheet of the Eyebolt type RPE M24x60.
>>>>
>>>> These eyebolt will be shipped soon at JLab.
>>>>
>>>> Let me Know
>>>> Regards
>>>> Dario
>>>>
>>>> On 21 February 2017 at 15:12, Tyler Lemon <tlemon at jlab.org> wrote:
>>>>>
>>>>> Hello Marco Mirazita, Dario, and Sandro,
>>>>>
>>>>> Please see Sahin's email below in blue. What is the depth of the hole used to attach the eyebolt to the detector frame? For reference, the hole in question is on page 8 of attached "SMC TA-RICH-001.pdf"
>>>>>
>>>>> Please let us know.
>>>>>
>>>>>
>>>>>
>>>>> From: "Sahin Arslan" <arslan at jlab.org>
>>>>> To: "Tyler Lemon" <tlemon at jlab.org>
>>>>> Cc: "Amrit Yegneswaran" <yeg at jlab.org>
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