SKU: 6754789603

R & D Flexible Shaft Coupling f/5" Yanmar - 10HP/100RPM Capacity

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Description

R & D Flexible Shaft Coupling f/5" Yanmar - 10HP/100RPM CapacityFlexible Shaft Coupling for 5" Yanmar 10HP 100RPM Capacity The R&D Flexible Couplings are fabricated from a contoured flexible disc molded in tough yet resilient new type polyurethane. The contoured disc gives clearance for the bolt heads, and is able to flex freely to take up any temporary misalignment of the engine and shaft, due to flexing of the boat structure or the engine moving on its rubber vibration isolation mountings. Forward thrust is

Flexible Shaft Coupling for 5" Yanmar - 10HP/100RPM Capacity

The R&D Flexible Couplings are fabricated from a contoured flexible disc molded in tough yet resilient new type polyurethane. The contoured disc gives clearance for the bolt heads, and is able to flex freely to take up any temporary misalignment of the engine and shaft, due to flexing of the boat structure or the engine moving on its rubber vibration isolation mountings. Forward thrust is taken in compression on the disc between the two half couplings and reverse thrust is taken again in compression on the disc between the two fail straps. In the unlikely event of a disc failure the steel straps make the coupling fail safe and ensure drive is maintained in both forward and reverse.

To calculate power of coupling required:
Horse Power of Engine x Reduction Ratio x 100 = HP/100RPM
      Engine Speed

Example:
Ford 150 HP at 2500 RPM with Borg Warner Velvet Drive 72C 2:1 Reduction Ratio
Engine Horse Power is 150 HP, Max Rated RPM is 2500, Reduction Ratio is 2:1
150/2500 X 2 x 100 = 12hp per 100RPM
Coupling required is 910-009

The R & D Marine Flexible Coupling fits between the transmission output flange and shaft coupling. It is designed to protect a boat's drivetrain. The unit will reduce vibration, compensate for some misalignment, isolate the shaft and absorb shock loads.

The flexible disc is machined from a resilient and durable polyurethane. It allows the unit to flex, absorbing vibrations and temporary misalignment of the shaft and engine due to movement of the engine or flexing in the vessel's structure.

The polyurethane disc is backed up by two metal compression straps, one on either side of the flexible coupling. These metal straps hold the system in constant compression whether the drivetrain is in forward or reverse. This feature extends the life of the system dramatically.

The R & D Marine Flexible Coupling will also absorb shockloads resulting from gear changes, or the propeller striking a submerged object. The polyurethane disk will distort with light shock loads and is designed to be sacrificial in the event of severe shock load, saving on expensive drivetrain repairs. If the disc is destroyed from massive shockload the metal compression straps keep the coupling intact ensuring that the drive system is functional in both forward and reverse.

Why R&D Marine Flexible Shaft Couplings?

  • Polyurethane flange creates a flexible barrier to reduce drivetrain noise and vibration to quiet your drivetrain
  • Absorbs transmission shock load caused by the propeller and high speed gear changes. This helps to reduce and avoid costly transmission damage
  • Fail safe design, both forward and reverse thrust is taken in compression from the steel straps, giving a durable design even in extreme conditions

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SKU: 6754789603

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evelyn
Dallas, US
★★★★★ 5
Purse companion
Size: 27 Count (Pack of 1)
I carry these lozenges in my purse. It tastes good, and truly helps with dry mouth!
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Reviewed in the United States on May 22, 2026
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Sher
Whiting, US
★★★★★ 5
Great lozenge! Tastes very good.
Size: 27 Count (Pack of 1)
Very effective and tastes good. I will continue using it after my chemo treatment is finished.
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Reviewed in the United States on May 1, 2026
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Shop Queen
Chelsea, US
★★★★★ 3
Dry mouth is miserable.
Size: 27 Count (Pack of 1)
The mouth lozenges for dry mouth were excellent at first, but I have dry mouth all day, and they started upsetting my stomach. I guess I was taking too many. Since I switched to the spry, I don't have a problem. I keep the a small bottle of the spray in my pocketbook, because I need it sporadically. It is probably different with each individual.
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Reviewed in the United States on April 11, 2026
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Rusky
Dallas, US
★★★★★ 5
Well researched, solidly faithful; undoes the harm of decades of scholars' attempts to debunk the Gospels
Format: Hardcover
Lots of reviewers have written great reviews, so this one will be fairly brief. Brant Pitre's books, this one included, are an example of what is best in the new scriptural studies emerging today. His research is solid and meticulous - no sloppiness here! - and he writes with a refreshingly strong Catholic faith. This book carefully and effectively undoes the harm of decades of scholars' attempts to debunk the Gospels. He very effectively rebuts 20th century scholars' claims that we don't know who wrote the Gospels, and that they were written so long time after Jesus' time on earth that they lack credibility as eyewitness, historical accounts. Step by step, with each chapter building on the next, Pitre shows the opposite to be true. Christians who have been disturbed by the debunkers will be strengthened, confirmed, and given much joy by this book. I've just purchased three more copies to give to friends - one of them a Catholic high school teacher and two, Catholic priests. But I think Christians of any denomination will welcome this book. Pitre's writing style is a joy to read: lucid, clear, and very easy to understand (even when I'm tired at the end of the day), without being annoyingly clever (as some popularizers can be) or pushy (as some apologists are). (I see Pitre as neither a popularizer nor an apologist; he is a scripture scholar who also is a fantastic communicator.) Without any attempt on his part to be "entertaining," Pitre has written a cliff-hanger - I couldn't put the book down! His insights - and now I'm speaking of the insights in all three of his books that I've read so far - Jesus and the Jewish Roots of the Eucharist, Jesus the Bridegroom, and this book, The Case for Jesus - are profound and deeply enriching spiritually. Although I've questioned a few of his insights, most of them have moved me profoundly, with a sense of wonder, and deep love and gratitude to Our Lord. Reading his books is, for me, a real form of prayer. I am looking forward to reading Jesus and the Last Supper (borrowed from the library to see whether I'll want to buy my own copy); this last book, per its reviewers, is aimed at a scholarly audience and different in tone from the three very accessible books I named above, but I'm expecting this book to be a treasure, too. In all of his books, Brant Pitre's lucid writing style, coupled with his solid scholarship, deep faith, and beautiful love for Our Lord, makes for a very special reading experience. I appreciate his respect for and great knowledge of Judaism, and the way he helps us to see the rich continuity between the Jewish and Christian faiths. Brant Pitre’s books are a real gift to us all.
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Reviewed in the United States on January 27, 2017
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M. L. Asselin
Cuba, US
★★★★★ 5
Who is Jesus: A Case for Jesus’ Divinity
Format: Hardcover
I thoroughly enjoyed reading Brant Pitre’s “The Case for Jesus.” The New Testament scholar’s contribution to Catholic popular literature on the identity of Jesus stands well above much of the plethora of material available to Christian readers today. Pitre (mostly) convincingly builds his case through careful, fact-based argumentation--even if one could draw different conclusions from the same evidence. What case is Pitre trying to make? In effect, he makes several cases leading up to his central point of who Jesus was and is. In the first part of this slim volume, he treats the authorship of the Gospels. In this matter, as in most of the book, his principle foil seems to be Bart Ehrman, a former Fundamentalist Christian-turned-apostate scholar whose popular works attempt to undermine the validity of the Gospels as meaningful historical documents and specifically the claim that Jesus is the Son of God. Contrary to Ehrman, Pitre argues for the traditional authorship of the Gospels. As two significant pieces of evidence, Pitre points out that even the earliest Gospel manuscripts and secondary references to the Gospels include the writers’ names by which we know them. The Gospels, then, were never really “anonymous.” This leads Pitre to challenge the scholarly consensus on the dating of the Gospels, and the more controversial hypothesis that Matthew and Luke were based in part on a hypothetical, now lost (and, as Pitre points out, never referenced) book of Jesus sayings denoted by scholars as the “Q” source. As for the so-called lost or apocryphal gospels, Pitre shows that they were never really lost, that most of them were known by early Christian writers, who regarded them as forgeries. In the case of the apocryphal gospels, then, even though the internal evidence suggests that they were written by the apostles to whom they were ascribed, the attributions were never accepted. Ehrman has argued that the apocryphal gospels were not accepted by mainstream or orthodox Christianity, but were embraced by the communities, such as the Gnostics, for whom they were written. In a way, Pitre and Ehrman aren’t in contradiction here, but they just interpret the data differently. In other words, if you accept that the Church Fathers are espousing the correct version of Christianity, then Pitre’s point stands; if you hold on to the view that the Church Fathers represented one view of Christianity among many, all to be regarded equally, then the criticism of the (orthodox) Church Fathers matters less. Pitre, while not dismissing the validity of literary criticism, argues for the historical value of the Gospels. He wants to treat the Gospels as biographies of Jesus. Their inconsistencies and apparent contradictions stem not, as Ehrman would have it, from a “telephone game”-like process of accretions and alterations over time, or even so much from the requirements of the communities for which they were written, as from the different perspectives and life experiences of their writers. Pitre notes the similarities between the Gospels and ancient Greco-Roman biographies in countering the ideas of Ehrman and before him, Rudolf Bultmann, in thinking of the Gospels as akin to folktales, fairy stories, and myths. Pitre stands for the literal truth of the Gospels as far as they will allow in part because two of the four Gospels tell us that they are true (Lk 1:1-4; Jn 19:35, 21:24-25). There’s a bit of circularity in that argument. The main case for Jesus that Pitre wants to make is for His divinity. The Gospels, as Luke Timothy Johnson and other scholars have explained, try to answer, however obliquely, the question Jesus himself poses to Peter: “But who do you say that I am?” (Mk 8:29). Pitre makes the case that the Gospels--even the synoptic Gospels--speak to Jesus’ being God. Pitre makes a lively, even entertaining, argument, using some passages, e.g., the reference to the sign of Jonah, in ways I certainly hadn’t thought of before. Even though as a Catholic I accept Jesus’ divinity, I am willing to allow that others may look at Pitre’s argument and reasonably come to different conclusions. One train of thinking might be this: Pitre notes that Jesus speaks in parables and riddles, and so His claims to divinity are indirect. Moreover, an outright and indeed blasphemous claim to His divinity might have put an even earlier end to Jesus’ three years of ministry. But the Gospel writers should not have been constrained by either Jesus’ particular application of rhetoric or his need to be circumspect; why did the Gospel writers not forthrightly declare that Jesus was God? I think the proper response to this is that Matthew, Mark, Luke and John wanted the person encountering the Gospels to answer for themselves who Jesus was and is. In other words, by transmitting the way Jesus conveyed who He was to His disciples perhaps they, too, would draw in and win over later followers of Christ. It’s much more efficacious to engage the potential convert that way than simply to assert that Jesus is God. Brad Pitre has written a wonderful and engaging book. Even if you don’t agree with all of his conclusions, you will appreciate his logical and engaging discussion. This book is meant for the general reader, although it does have a scholarly apparatus by way of careful notes. An index would have been nice but this is a short book of a couple hundred pages. If you’re on a long flight, this book would be the perfect company.
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Reviewed in the United States on October 28, 2016

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