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Description
R&D 910-009VO Flexible Coupling 5" for Volvo Penta GearboxesFlexible couplings for boat propeller shafts. Manufactured by R&D Marine, the flexible coupling fits between the boat propeller shaft coupling and the gearbox output coupling. This flexible coupling consists of a contoured flexible disc moulded in tough yet resilient new type Polyester Elastomer. The contoured coupling disc gives clearance for bolt heads, and allows the coupling to flex freely to take up any temporary misalignment of the engine and
Flexible couplings for boat propeller shafts. Manufactured by R&D Marine, the flexible coupling fits between the boat propeller shaft coupling and the gearbox output coupling. This flexible coupling consists of a contoured flexible disc moulded in tough yet resilient new type Polyester Elastomer. The contoured coupling disc gives clearance for bolt heads, and allows the coupling to flex freely to take up any temporary misalignment of the engine and propeller shaft, due to flexing of the boat structure or the engine moving on its rubber engine mountings. Forward thrust is taken in compression on the coupling disc between the two shaft half couplings and reverse thrust is taken again in compression on the coupling disc between the two fail safe straps. A safety feature of the R&D 910 series flexible couplings is that in the unlikely event of a coupling disc failure, the steel straps make the coupling fail safe and ensure propeller shaft drive is maintained in both forward and reverse. Gearbox Flange Dimensions - Diameter: 127mm (5.00") - Number of gearbox flange bolts: 4 - Coupling bolt hole nominal diameter: 11.2mm (0.44") - Bolt PCD: 107.9mm (4.25") - Coupling register diameter: 63.5mm (2.5") Flexible Coupling Details - Coupling maximum diameter: 143mm (5.63") - Length: 45mm (1.77") - Bolt diameter: 7/16" UNF - Capacity per 100 rpm: 9.69kW 13HP - Coupling approval: Lloyds Register of Shipping & Bureau Veritas - Typical applications: Volvo Penta gearboxes - Electrical properties: Flexible couplings are as standard non-conducting - Earth bonding strip: 807739Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.2 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 4
Good entry level or decorative pillow
Color: White-velvet, Size: With Cover
Perfect entry level body pillow, or for a guest bed that isn't frequently used. The body pillow needs refluffed every day when used as intended. Long enough to also fill a gap between headboard and mattress on a full sized bed. The cover is soft,has a zipper and washed well. I was able to easily find other low cost pillow case options for it here on Amazon.
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Reviewed in the United States on March 16, 2026
★★★★★ 5
Comfortable
Color: Green-cooling, Size: With Cover
This is probably one of the best pillows I have ever owned. I haven’t bought a new pillow in almost 10 years. I don’t get a good chance to actually look at pillows, let alone sleep, so this was a very good buy for me. It’s actually cold unlike other cooling pillows I’ve been given, it’s soft, large, and the support it gives for my neck is a lot better than my previous pillow. It’s also flat enough where I don’t have to constantly adjust it so I’m not waking up in the morning having to adjust it from breaking my neck.
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Reviewed in the United States on March 29, 2026
★★★★★ 5
Great pillow for side-sleepers, to keep things lined up.
Color: Black, Size: With Cover
I didn't actually expect this to be that useful, but it has improved my mornings a lot.
Since I sleep on my side, often times I my knees would be uncomfortable when trying to go to sleep, or my neck would be sore getting up. This pillow gives me a bit of padding, and helps keep my hips and shoulders lined up.
Simple solution, but works great.
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Reviewed in the United States on May 14, 2026
★★★★★ 3
Thin not as picture
Color: Pink-cooling, Size: With Cover
The pillow is very flat not as thick as pictured I do like the coolness but giving 3 star because it does not look as thick as picture it is very flat and thin
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Reviewed in the United States on March 26, 2026
★★★★★ 5
Good body pillow
Color: Pink, Size: With Cover
I love this pillow! Highly recommend for a side sleeper. Its soft,the pillow case stays nice and cool,and its a good length.
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Reviewed in the United States on May 9, 2026