Since 1991, Tides Marine has provided essential marine components to the marine industry. At Tides, providing excellent customer service is our no. 1 priority and we proudly manufacture our Shaft Seals, Rudder Bearings and Sail Track in Deerfield Beach, Florida. Our products improve vessel performance and reliability, solve unique system issues, reduce the need for scheduled maintenance and provide worry-free, long-term boating enjoyment. We are the US Master Distributor for Aqualuma LED Lighting, MATE Pumps, Horns & Rubrail as well as Super Stainless, a gel based, non-abrasive, stainless steel cleaning agent.
Tides prefers to maximize the width of the track shape that enters the luff groove, whether the luff groove has an internal flat shape or internal round shape. If Tides can maximize the amount of UHMW material that goes into the luff groove, the track will perform better when the slides/sail begin to load the track assembly during vessel operation.
Measure the internal width of your luff groove at the mast gate using a tape measure/caliper etc. In most cases, you can get a fairly accurate measurement of this space by simply measuring the width of the mast gate. It also corresponds roughly to your current slug diameter. One of these measurements should be satisfactory. See photos below.