R&D Marine
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Catalog excerpts

R&D Marine - 1

QUALITY MARINE EQUIPMENT SINCE 1981 COMPLETE DRIVETRAIN SOLUTIONS

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R&D Marine - 2

COMPLETE DRIVETRAIN SOLUTIONS R&D Marine was established in 1973. After several years of development work, R&D Marine started to manufacture a flexible shaft coupling suitable for marine use, which was both easy to fit and competitively priced. The company was started in a single garage moving to two garages after one year and then to its current location in 1976. Over the years, the factory has been completely rebuilt and now has 8000 square feet of modern factory space with all manufacturing being carried out on CNC machines. PYI has been the proud distributor of the R&D product line...

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R&D Marine - 3

TABLE OF CONTENTS R&D MARINE R&D MARINE HAS ALL YOUR DRIVETRAIN SOLUTIONS

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R&D Marine - 4

FLEXIBLE COUPLINGS REDUCE COSTLY TRANSMISSION REPAIRS Reduce engine noise and transmission vibration Staggered bolts enable the polyester elastomer to isolate vibrations and compensate for some misalignment. Reduce costly transmission repairs Absorbs shock loads due to propeller impact or hard gear changes. Fail safe design Two steel straps prevent drivetrain from separating in the event of a severe impact. The aft steel strap is bolted to the transmission coupling and the forward steel strap is bolted to the shaft coupling. The aft strap will engage the forward strap and keep the...

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R&D Marine - 5

O - These couplings are fitted with a shouldered bush to locate in the gearbox X - These flexible couplings have been approved by Lloyds Register of Shipping. flange. # - For the Hurth HBW 150 V Gearbox an adaptor 202-351 is required (0.875" O - These flexible couplings have been approved by Bureau Veritas. long). For the IRM 220A Gearbox, we can supply adaptor plate 202-384 (2.125" long) and for the Twin Disc 502 Gearbox, adaptor plate 202-148 (2.125" long) that bolt onto flexible couplings 910-003, 910-025 or 910-032 and with half coupling 202-037 or 202-054, alternatively clamp...

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R&D Marine - 6

4 — FLEXIBLE SHAFT COUPLINGS TWIN DISC CONTINUED YANMAR (KANZAKI) MG506-1 MG506A-1 MG507-1 MG507A-1 MG5075IV MG5075-A MG5075SC 7.25" Flange 910-017, 910-039 MG506DC MG5065A MG507-1 MG507-1SC MG507-2SC MG507A-2 MG5075A needs adaptor 202-356 MG5075SC MG5075IV MG5081SC MG5081A needs adaptor 202-356 MG5082A MG5082SC MG5085SC needs adaptor 202-356 MG5085A needs adaptor 202-356 MG5090A MG509SC MG509U MG5091SC MG5095A MGX5095A 9" Scalloped Flange 910-048

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R&D Marine - 7

ZF-HURTH CONTINUED R&D MARINE Installation Procedure for R&D Marine Couplings 1. Roughly align engine and stern gear without flexible coupling ie. only two rigid half couplings pushed together. 2. Bolt "R&D Marine" coupling between the two rigid couplings. Tightening details as below. 3. Check alignment of engine by placing feeler gauges between RED CONE HEADED BOLT and the rigid half coupling. Repeat for the SAME bolt at 90° intervals by rotating the shaft. 4. If the gap is the same in all four positions, engine is accurately aligned. Recommended minimum to maximum gap difference: 0.010...

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R&D Marine - 8

Provides a better fit than a solid coupling Can accommodate the variations that occur with normal shaft tolerances by clamping onto shaft. SPLIT COUPLINGSGREATER STRENGTH & RELIABILITYGreater strength and reliability Machined from solid steel. Easy to install and position Split couplings are much easier to remove than solid couplings. Save time and money! Adapters Adapters are available for most gearboxes to allow the fitting of a flexible coupling. Bobbins Bobbins extend the shaft when necessary. Supplied with clamp bolts and nuts: Imperial Sizes: Keyways to BS46: Part 1 Square Metric...

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R&D Marine - 9

Bore Diameters (Inches) ^3 MARINE Shaded area designates range of bores covered. Type of Gearbox 4" BW, PRM, Hurth Max Bore: 1.5" 4" Yanmar Max Bore" 1.5" 4" Volvo Max Bore: 1.5" 4" Bukh Max Bore: 1.5" 5" BW, PRM, Hurth, Volvo Max Bore: 2" 5" Yanmar Max Bore: 2" 6" PRM Max Bore: 2.5" 6" Twin Disc Max Bore: 2.5" P - Pilot drilled open tolerance B - Bored Only BK - Bored and keyed 7.25" PRM 601, 1000 4:1 Max Bore: 2.75" 7.25" PRM 1500 Max Bore: 2.75" 7.25" Twin Disc Max Bore: 2.75" 7.25" ZF 311A Max Bore: 2.75" SPLIT COUPLINGS -

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R&D Marine - 10

Flange machined to suit the gearbox output flange. The register could be male female (see listing). Flange machined to the selected R&D Flexible Coupling. The register could be male or female. R&D Marine can provide a Bobbin to extend the shaft. If the gearbox fitting you require is not listed please contact PYI Inc. 8 — FLANGE ADAPTORS / BOBBINS

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R&D Marine - 11

FLANGE ADAPTOR FITTING GUIDE — 9

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R&D Marine - 12

Designed for any type of engine • 2 & 3 cylinder long stroke • 1,2 & 3 cylinder short stroke • High speed 4 cylinder, 6 cylinder and more Wide range in stock Standard sizes offer different weight capacity, footprint, stud size and height. This enables direct plug-in replacement for most installations. Capacity from 30 - 2,000 lbs per mount. Fail safe design The vertical stud is secured to a horizontal metal plate, to prevent the mount from pulling apart. R&D Marine engine mounts will withstand a roll over test. Fast installation time Slotted holes and height adjustment to simplify...

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R&D Marine - 13

This is a low height mount with minimum deflection. This mounting is a competitive, low height medium capacity mount giving good engine control. RECTANGULAR SHEAR MOUNTS The R&D Marine Rectangular Shear Mountings offer low height with the best combination of stiffness. Soft vertically and at aright angles to the crankshaft to isolate vibration, stiff fore and aft to take the propeller thrust. This mounting has a low height giving good vibration isolation. Shear Loaded "Super Mounts" Fitted with an oil shield to protect the rubber

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R&D Marine - 14

Shear Loaded "Super Mounts"Fitted with an oil shield to protect the rubber Shear Loaded "Super Mounts"Fitted with an oil shield to protect the rubber

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