Sunday, November 11, 2018

Trailer Build Ep9 - Keel rollers

Bought and fitted new 8" keel rollers to the lower main frame. Red for fiberglass hulls. The rollers support frames attached with galvanized saddles welded to the frames. These have 12mm bolts which tighten onto square solid bar posts.

Fitting the first roller set on the aft frame (F1)

I bought these from NQ wheels and Castors in Townsville, which sell high quality products and the service is quick and efficient.

The aft double rollers can tilt..

..to match the angle of the stem
Fitted 3 double roller sets aft to take the bulk of the keels weight, so 6 rollers to replace 3 previously. Hope that the load is more evenly distributed this time around and no roller pins get bent again.

Keel red rollers fitted - Blue keel guide rollers have double saddles.

Aligned the keel rollers with a stringline running down one side of the rollers. Clamped the saddles to the frames and weld tacked in position. The forward 6" red roller and gal frames were new, but used recycled frames on single 8" rollers F4 and F5 and recycled the F5 red roller.

Once everything was aligned, all the rollers and supports were removed. Then the main frame tilted onto it's sides so the saddled could be fully fillet welded on (downhand)

Saddles tacked on and ready for downhand fillet welding to frames.







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