8MM FORUM WORLDWIDE • View topic - New production of Bell Howell worm gears for still picture

8MM-16MM FORUM WORLDWIDE

The International Forum for 8mm, 16mm, and 9.5mm film
Dedicated To Collectors Around The World
It is currently Thu Sep 21, 2017 6:32 am

All times are UTC - 5 hours [ DST ]

Click on any of the boxes below to link to a new page



Screening Rooms    Ebay Film Sellers    Film/Equipment Sellers    Laurel and Hardy    Magnetic Striping


Our mission is to provide a "free" forum for all members. This forum will not delete, lock up, or edit any posts. On this forum, you are "free" to question any statement that is not understood, and debate any differences you have with another member. We only moderate when a member will not back up his accusations. There are no condescending attitudes from the Administrator or the Moderator. You will be treated with respect. Dan Lail, Admin. and Chris Smith, Moderator



Post new topic Reply to topic  [ 8 posts ] 
Author Message
 Post subject: New production of Bell Howell worm gears for still picture
PostPosted: Wed May 20, 2015 12:28 pm 
Offline
Film Expert
User avatar

Joined: Wed Apr 02, 2014 2:42 am
Posts: 50
Location: Olympia, Washington
I just saw this posted on another forum:

http://shop.van-eck.net/PP-0051.html?_g ... ch=PP-0051

New production of the Bell & Howell part number 09784 Worm Gear Only for projectors with a still picture function. This is the gear only and you have to transfer several parts from your old gear to this gear. Previously, this gear was only available as "new-old-stock". Once all the parts are transfered from the old gear to the new gear it becomes a complete # 09709 Worm Gear Assembly.

This is not the same worm gear as # 012666 which is for projectors without still picture function. 012666 has been reproduced for some time now and is widely available from the usual Bell & Howell parts suppliers.


Top
 Profile Send private message  
 
 Post subject: Re: New production of Bell Howell worm gears for still pictu
PostPosted: Wed May 20, 2015 9:24 pm 
Offline
Film Expert

Joined: Thu Jun 02, 2011 7:15 pm
Posts: 105
Location: Flint Michigan
Greetings Ken
Ive seen this too
I checked the prices and shipping back to the USA. OUCH!!
I replaced many worm gears but now at that cost for the remakes
Ill have too rase my prices I tryed to keep them down but now ?
They just might be a boat anchor or disconnect all the other parts for still picture function.
And use # 012666 But that might be a little costly too.
I already have the 015533 Lower Sprocket Gear 1580/2580 Made and that was a costly thing
Just to keep this hobby going

RC

_________________
RC's Classic Collections 16mm
Parts & Service
http://www.rcsclassic16mm.com/


Top
 Profile Send private message  
 
 Post subject: Re: New production of Bell Howell worm gears for still pictu
PostPosted: Thu May 21, 2015 12:09 am 
Offline
Film Expert
User avatar

Joined: Wed Apr 02, 2014 2:42 am
Posts: 50
Location: Olympia, Washington
Yeh, that price is kinda high to get the gear to the USA.

Perhaps the only thing to do is to remove all the still picture parts and convert to using the non-still picture 012666 worm gear instead. The # 012666 worm gear has been reproduced for some time now and is available at many B&H parts dealers.


Top
 Profile Send private message  
 
 Post subject: Re: New production of Bell Howell worm gears for still pictu
PostPosted: Thu Jun 25, 2015 11:17 am 
Offline
Film Expert

Joined: Thu Jun 25, 2015 10:47 am
Posts: 3
Location: Netherlands
Hi,

I have a clarification to make about this gear. This worm gear is complete and does not require parts from the old gear to be placed on the new one.

With the new 3D printing techniques we have made a new design in one part!

About the shipping costs to the USA. The problem is that this gear does not fit in an envelop, so the shipping costs for an individual gear are a bit high. However if someone in the USA is interested in becomming a reseller for this, we can tackle this issue.

King Regards,
Edwin van Eck
Van Eck Video Services, the Netherlands.


Top
 Profile Send private message  
 
 Post subject: Re: New production of Bell Howell worm gears for still pictu
PostPosted: Thu Jun 25, 2015 5:17 pm 
Offline
Site Admin
User avatar

Joined: Tue Apr 26, 2011 4:51 pm
Posts: 1936
Location: Loganville, Ga.
What is the cost to ship this gear to the USA?

_________________
And now For Our Feature Presentation.

http://www.metroxpressjazz.com/index.html


Top
 Profile Send private message  
 
 Post subject: Re: New production of Bell Howell worm gears for still pictu
PostPosted: Thu Jun 25, 2015 5:51 pm 
Offline
Film Expert
User avatar

Joined: Wed Apr 02, 2014 2:42 am
Posts: 50
Location: Olympia, Washington
The pictures on your website only show the bare gear not a fully assembled one. Does this mean your gear also includes these parts:

31081 Retainer, Shuttle Interlock (made of hardened steel)
30163 Screw, Interlock Retainer
31083 Setscrew
31052 Banc-Lok

Also I spotted a discrepancy in the description that needs to be corrected:

Bell & Howell - Worm Gears (16mm, for 500-2500 series) - PP-0051 (new)

B&H product nummer: 09784 (should also include number 09709 for the complete gear assembly)
with still-function

A common problem with the 16mm Bell & Howell projectors is that in the original worm gears, can have rips.
This new worm gear is made of Improved long life black plastic for uptimal durability.

After assembly in projector, lubricate well with e.g. Molykote G-4500

color: white
material: massive nylon

size: 30 x 37 mm
weight: 23 grams

A couple of miss-spellings and a discrepancy in the color. What color is this gear, black or white?


Top
 Profile Send private message  
 
 Post subject: Re: New production of Bell Howell worm gears for still pictu
PostPosted: Fri Jun 26, 2015 2:39 pm 
Offline
Film Expert

Joined: Mon Nov 17, 2014 12:19 pm
Posts: 6
Location: Glenolden, PA (Philly Suburbs)
Not being familiar with the 3D printing materials available, and not wanting to knock the supplier, I do have some concerns.

For one, 3D printing has only been available to the mass public a short time -- how much do we know of the material being used, as to how it will hold up over time?

Also, has this gear been actually been tested in a B&H projector, and been run for many hours to show 'real world' testing for long term duration under heat and cooling cycles?

Let's be honest here, the wormgear is the most involved piece to replace, along with a ton of special alignments to then be done after. This isn't a 1-2-3 type repair job. And I would personally explode if I bought one of these, repaired the projector (or in my case, had someone do it professionally), and then find out in 6-12 months (or even a year or two later) it failed due to not being able to handle the stress of heat and cooldown (for example). That's a LOT of money pissed away for the repair, for a short time of it working.

I'm not trying to accuse the person manufacturing these of anything, but I am suggesting that before people start buying them, to know firsthand how long real world testing has been done. It's known full well that the current grey wormgears do NOT fail like the original white ones did, and there are countless examples being used to back this up. I realize the current ones don't allow still function, but they are in many machines over many years with no issues.

I'd rather have a projector lose the still function knowing that the worm gear in there won't fail, or just buy a different brand of projector altogether for a still function if I needed it. Again, if this new gear fails, it's not a simple replacement to redo.

Anyone else agree?


Top
 Profile Send private message  
 
 Post subject: Re: New production of Bell Howell worm gears for still pictu
PostPosted: Fri Jun 26, 2015 10:18 pm 
Offline
Film Expert
User avatar

Joined: Wed Apr 02, 2014 2:42 am
Posts: 50
Location: Olympia, Washington
Not only heating and cooling cycles need to be taken into account, but also the greases used on the gear. Have any aging or longevity tests been performed?

How close are the tolerances? Motion picture equipment uses parts that are machined to very close tolerances. Remember, the slightest "play" in a particular part can be magnified thousands of times in the picture on the screen.

As mentioned earlier, the # 012666 (non-still) reproduction gear has proven itself to last. How about this new still picture one?


Top
 Profile Send private message  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 8 posts ] 

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
cron
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group