□amper Drive Plates R&D Marine has developed a wide range of competitively priced Damper Drive Plates to fit most engine/gearbox combinations. The R&D Damper Drive Plates reduce gear noise and allow the engine to run Linear Stiffness elements for general applications and High-Deflection elements to stop gear noise and spline wear at slow speeds. All dampers are designed to be Fail-Safe and maintain the drive if the flexible element fails. The flexible elements are made from a Polyester Elastomer which has good heat qualities and is not affected by salt water, diesel and lubrication oils. Non-standard items are available for special installations, maximum back plate Installation is made quick and easy as the R & D Damper Drive Plate requires no machining and is ready to bolt to the flywheel. • Reduces gear noise lower speeds • Fail safe design • Machined ready to install • Elements suitable for every • Element has good heat • Special back plates up to salt water, diesel and lubrication oils • Wide range of stock • Competitively priced • No springs to rust or fret Products are available ex-stock and worldwide through our distribution network. Worldwide availability

R&D Marine Damper Drive Plates Element Selection Consider the following criteria when making a decision on the element design. Loop type General purpose robust element which can be mounted either way round on the flywheel and can rotate in either direction. Linear stiffness up to 3 degrees of deflection. Hammer Head More torsionally flexible than the loop type, usually has smaller diameter element than our other designs but still retains the ability to be mounted either way round on the flywheel and rotate in either direction. Three stage stiffness with up to 9 degrees of deflection. High Deflection...

Damper Selection Procedure Example 1) Ford 150 HP at 2500 RPM 6 Cylinder 2) Borg Warner Velvet Drive 72C Spline 26 teeth 20/40 DP 1.394 diameter 3) Back Plate diameter 14.250, fixing holes 6 x 0.375 diameter onl3.500 pcd spaced in 3 groupe of 2. No register 4) Element fits on outside of flywheel 5) Work Boat with a lot of slow speed work. The R&D Damper comprises 3 main components, Spline plate, Element and Back plate, these 3 components are given a code which make up the finished part number.. The following procedure will lead you through the selection process. 1. Select the correct power and...

Element Fixing 3 x 3/8 (4,00) 3 mm thick plate Element Fixing 4 x 3/8 (6.00) 3 mm thick plate Element Fixing 5 x 3/8 (5.593) 3 mm thick plate Element Fixing 4 x 1/2 (5.593) 6 mm thick plate Element Fixing 4 x 1/2 (4.50) 4 mm thick plate Element Fixing 3 x 1/2 (4.50) 4 mm thick plate Element Fixing 4 x 1/2 (8.00) 3 mm thick plate Element Fixing 6 x 1/2 (8.00) 6 mm thick plate Element Fixing 4 x 1/2 (10.25) 6 mm thick plate Meadow Works Clothall Road