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Old 09-08-2010, 08:14 PM   #1
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2002 Mainship Sliding door rollers

Need to find new rollers for the starboard side sliding door on my 2002 Mainship 390 trawler.* Mainship no longer stocks them.
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Old 09-08-2010, 08:55 PM   #2
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RE: 2002 Mainship Sliding door rollers

This palce sells parts for home doors maybe some of the rollers can interchange?
http://www.allaboutdoors.com/index.php?cPath=74 If there is a mainship owners group maybe someone there can help
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Old 09-10-2010, 05:32 AM   #3
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RE: 2002 Mainship Sliding door rollers

Remove the door and rollers and you will be able to match them up at a well stocked Lowe's or a local True Value type hardware store.
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Old 09-11-2010, 08:41 AM   #4
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RE: 2002 Mainship Sliding door rollers

Your rollers came with ordinary steel ball bearings, hence the failure. You can replace with the same, from Home depot, or search for all stainless, and get many more years than the originals. Search online. I found some from a hardware supplier in North Carolina that shipped to Vancouver. Years ago and I don't have the old invoice any more, sorry. Those came with aluminum track to ride on, but that corroded and wore low spots, so I recently replaced the tracks with SS. Those from Speedy Glass, who sell them for domestic sliding door retrofit. Now smooth running, and should last for quite a while.
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Old 09-12-2010, 08:02 PM   #5
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RE: 2002 Mainship Sliding door rollers

It's quite common for the rollers to rust up.* Lots of folks simply remove the rollers and place a thin strip of plastic on the bottom of the door.* When I did this, the door went from impossible to open to opening on its own in big seas...........* Arctic Traveller
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Old 03-20-2014, 01:05 PM   #6
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Lots of good advice here...

Unfortunately for the 350/390s, Mainship used a very unusual door that requires rollers only 1/2" wide (which is the width of the channel inside the bottom of the door).

I took mine apart last week to identify the rollers and then spent a couple of DAYS looking at every hardware store within 25 miles, to no avail.

What I eventually learned is that the doors were made by "Better-Bilt" and that the specific roller is quite rare, seemingly the only roller that was ever made in a 1/2" width. (and yes, I did try to force-fit a commonly available 9/16" wide unit and failed)

Here is a picture of what came out of the bottom of my door (in pieces):

http://bartonkramer.com/art/product/...s/illo/514.jpg

Once I knew the exact dimensions, I was able to locate them on Amazon!

Prime-Line Products D 1758 Sliding Door Roller Assembly with 1-1/8-Inch Steel Ball Bearing - Amazon.com

Unfortunately, these do not appear to be available in stainless steel or nylon, so I am just going to pack the bearings with the best grease I can find and make it a point to re-grease them regularly.

Hope this helps other Mainship 390 owners, I understand these roller have been a constant source of trouble...
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Old 03-21-2014, 10:36 AM   #7
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Thanks, RG.
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Old 03-21-2014, 04:39 PM   #8
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Sorry, but what a piece of crap to put on a boat! I suppose they might be ok if you never went near salt? Maybe have a machine shop make some up in 316 and you can sell them, these must be crapped out on every Mainship.

A word of warning, once you install that piece the door will slide like crazy so remember to go easy on it. I lubricated one of my sliders and my wife nearly launched it off the boat because the "new" door slid so well.
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Old 03-21-2014, 04:53 PM   #9
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I did roller replacement on our doors. Check this site out. 81-241 1-1/4"dia Stainless Steel Concave BB Wheel : SWISCO.com

Search the website for "stainless" and you may come up with something that fits.
As metioned by Artic Traveller above some folks just go to a high density poly track modification. Here is an example.
The Trawler Beach House: Sliding Door Repair For Exterior Door
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Old 01-28-2015, 02:20 AM   #10
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cleaning glass doors

Sliding glass doors need great care and such sliding door rollers helps to keep it clean and clear.You can put a wet cloth over roller and clean the door.
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Old 02-07-2015, 11:06 PM   #11
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Success!!!

I installed the rollers found on Amazon almost a year ago (after saturating them in Boeshield). The door still operates perfectly. Even if I have to change them every other year, this is goodness...


Prime-Line Products D 1758 Sliding Door Roller Assembly with 1-1/8-Inch Steel Ball Bearing - Amazon.com
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