Most Moviola & Ediquip Rewinds are pre-drilled this Tension Screw.  It is complete with Spring, and Brake Cylinder.  The Originals are a brown composite cylinder.  I also discovered Nylon Cylinders that work also.  If you have a preference, eBay eMail me.
These will not work with HFC Hollywood Film Company Rewinds.  I do have similar HFC tension screws with Ball, Spring, and Fiber Fork listed elsewhere under HFC..

I generally mail them First Class USPS or Ground Advantage.. 

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TIP: Film reels should always be stored vertically - never horizontally as the weight of a stack of reels can break off edges of film that are sticking out.   In fact - you never want to stack reels of film horizontally - so buy a film rack for Vertical Storage - or build one out of 2x2" wood rails held about 6 inches apart.

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TIP: If you run into Vinegar Syndrome, there is a product discontinued decades ago that fixes it and it has been reintroduced.  A standard VITAFILM cleaning fixes most cases.  Tough cases might need putting the reel of film in the large half of a film can and soaking it.  Remember that Vinegar Syndrome is a film Base stock problem - not an emulsion problem.  VITAFILM works well and is available from eBay vendors.

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And a little History.  “Iwan Serrurier started his Moviola company in 1917 to build a home movie viewer. The name was a copy of Victrola since he thought his invention would do for home movie viewing what the Victrola did for home music listening. But the machine cost $600 in 1920 (that’s over $20,000 in today’s dollars), so not many sales. An editor at the Studios of Douglas Fairbanks suggested that Iwan should adapt the device for use by film editors. Serrurier did this and the Moviola as an editing device was born in 1924 with the first Moviola being sold to Douglas Fairbanks himself. All of the Major Studios jumped on board, and his invention was an immediate success.  A full line of Editing Equipment followed.

In 1966 Moviola Corporation. was sold to Magnasync Corporation (a subsidiary of Craig Corporation) of North Hollywood for $3 million. The new name was Magnasync/Moviola Corporation. The new management immediately tripled its production and earned back its purchase price within 2 years.  Competitors sprang up.  Ediquip copied the equipment with excellent quality, and painted it Moviola Green, and was promptly sued by Moviola.  By the time the lawsuit was settled, the industry was fading, and Ediquip ended up buying both Moviola & Precision for Sound Equipment, adopting Moviola as the surviving name. In the transition period you are likely to find Moviola, Precision, and Ediqup equipment branded under any of those names. HFC - Hollywood Film Company also made excellent rewinds - but the parts are not interchangeable with any of the Moviola brands.  Moviola Company was sold to J&R Film Corporation in 1984.  They are not supporting any of the older film equipment.  (Thanks to Wikipedia for some of the basics in this History.)

I used all of this type of equipment in my career,  but noticed that much that ended up on eBay was in poor shape and some was not in working condition.  Most of the sets had LONG shafts - so not very usable for Today's Editing.  So I had the shafts cut to 5", and discovered that it was easy to make them work for all widths of film.   I started combining sets so they would be complete, and when I couldn't source parts, I found a great Machine Shop and had parts manufactured.  On some sets the Paint looked terrible, so I had Moviola Green Paint custom blended at $35 a can,  and made sure my sets looked good.  So my sets aren't "Estate Sale" refugees, and I don't sell Clamps for $145 each nor Rewinds for $1,000 a set....  I sell Editors Tools in good working condition - Not Perfect - but very usable.  I sell mostly to Universities & Film Libraries.