Weight Capacity of Boat Trailer Roller Bunks Explained

Question

Question:

When you say these roller bunks have a 3,000 pound capacity,inch i does that mean the capacity of *each* bunk is 3,000 pounds, independent of the other bunk, or ii does that mean the capacity of each bunk is 1,500 pounds? For example, if two of these roller bunks were placed *end-to-end* directly under a sailboat-type keel on the centerline of a boat weighing 3,000 pounds, would they support that weight? Thank you.

asked by: Roger M

0

Expert Reply:

The weight ratings for roller bunks like the Dutton-Lainson Boat Trailer Deluxe Roller Bunk - 5' Long Sections # DL21741 are interesting as it was explained to us that the capacity listed (3,000 lbs) is the max weight that the boat can be regardless of how many roller bunks are used. So if your plan is to use roller bunks and you were going to use the # DL21741 the capacity would be 3,000 lbs. This is due to the fact that at any given point a single set of the rollers could be carrying the full weight of the boat.

expert reply by: Jameson C

0

Answer 1

A couple sets of the Dutton-Lainson Boat Trailer Deluxe Roller Bunk - 5' Long Sections - 12 Sets of 3 Rollers #DL21741 will drastically help with getting your pontoon boat on and off the trailer smoothly and easily as there isn't any friction…

view full answer...

Answer 2

I called my contact at Yates Rubber and asked about the Keel Roller for Boat Trailers, part #YR1200Y. They told me that the weight capacity is 400 lbs. They also said that they are typically used to help as a guide and the bunks normally handle the…

view full answer...

Answer 3

Two 12 foot long bunks boards will work well to support your 21 foot boat. Ideally, the bunk boards should be at least half as long as your boat and run from the stern (or a few inches beyond it) to the bow as far forward as you like. Due to shipping…

view full answer...

Answer 4

The Dutton-Lainson roller bunks #DL21741 can be attached directly to a flat wooden bunk. All you would need is the hardware appropriate for your particular wooden bunks which you can obtain locally at a hardware store. Considering it is for marine…

view full answer...

Answer 5

Yes, you would want to use two sets of 4 foot roller bunks since your current bunks are 8 feet long. I would recommend you go with the Dutton-Lainson Boat Roller Bunks #DL21740. These roller bunks would have plenty of capacity and would be sized…

view full answer...

Answer 6

You can attach the Dutton-Lainson Boat Trailer Deluxe Roller Bunk #DL21741 directly the wood bunks horizontally if you want. I attached a picture that shows them installed on the flat side of a board for you to check out as well.

view full answer...

Answer 7

To be on the safe size, I recommend going with a 13 inch bracket #CE10002G-4 at the back of the trailer and an 11 inch bracket with #CE10003G at the front. A nice feature on these brackets is that they will each actually have as much as 3-3/4 inches…

view full answer...

Answer 8

The bearings in trailer hubs are measured to very precise dimensions, to the nearest thousandth of an inch, such as 1.234-inches. To find a suitable replacement hub to fit on your existing trailer spindles either the bearing part numbers or these…

view full answer...

Answer 9

Thanks for the photo. It does indeed look like you need to move your keel rollers up towards the bottom of the boat until they are touching but not supporting the full weight. Therefore, marking the bracket when the rollers are flush to the bottom…

view full answer...

Answer 10

The majority of the weight of your boat should be supported by the bunk boards or by roller bunks. When the article referenced rollers it did not mean keel rollers. Keel rollers like the #CE10401G can hold the weight of the boat when loading and…

view full answer...

Answer 11

The manual lockout on your Atwood 85778 surge brake coupler is there so that you can back up the trailer without the brakes locking up on you. Yes you can safely tow your trailer with the broken manual lockout, you just have to make sure you…

view full answer...

Answer 12

If the trailer wheels scrubbed (dragged and scrapped the ground instead of rolling) when jack knifed then it could have thrown something out of alignment or damaged something. First, inspect the suspension. Look for any elongated holes where…

view full answer...

Weight Capacity of Boat Trailer Roller Bunks Explained

Product Page this Question was Asked From

Featured Help Information

Miscellaneous Media

Continue Researching