The shock of shifting is absorbed by a 1 3/4" to 1 3/8" NYLON (NB12) bushing inside an outboard propeller hub.. Should you hit something, the bushing acts as a "breakaway," allowing the prop to spin and safeguarding drive train components such as gears. There is usually enough friction left to operate at low RPMs - sort of like a "go home" mode. With high RPM, a spinning hub seems like a power loss. At high RPM, the prop will almost certainly slip. It also absorbs power from the engine to the boat's propeller. It accomplishes this by transferring spinning power from the front to the back. Torque will transfer from the transmission to the boat's differential, which then sends torque to the propeller, allowing the vehicle to move. You can't drive without torque transfer between the various components. The bushings absorb vibrations and allow two independent sections to move without causing damage to drivetrain components.
Key features:
Specifications:
Standard marine taper and come with brass step keys.
We can ship to virtually any address in the US. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.)
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, please Contact Us with your order number and details about the product you would like to return. We will respond quickly with instructions for how to return items from your order.
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