Chumacera
A bearing of those commonly used in rowing.
The bearing or fork is a piece of metal or wood with a notch where it rests and rotates any axis of machinery. This is also used in rowing boats, where the rowing is supported allowing it to rotate in its longitudinal axis, and also that the rowing can be moved around the vertical axis of the carrier (tolete), thus realizing the route of the rowing. shovel in the water and out of it.
They are usually plastic. They have a latch that closes the bearing to prevent the oar from coming out. As can be seen in the picture, the height of the bearing can be adjusted by changing the number of washers (in this case blue) that we put under and above the bearing, in order to achieve the proper height to make a good stroke for each rower.
You can also see that the vertical part where the paddle supports is slightly inclined. This inclination also needs to be calibrated to get the blade to enter the water in the proper way (practically vertical) so that it does not tend to escape or sink into the water. This is done by placing pieces that fit up and down the bearing (called colloquially plugs) that modify in some degrees this inclination.
This whole process is part of the regulation of the boat, which coaches and rowers should spend time if they want to maximize the physical capabilities of the rower, allowing them to row in the most effective way possible.
It is also known as bearing, the device that allows the support for the rotation of an axis, is composed of a rotating part and a fixed part. They can be made of plastic, aluminum, steel and stainless steel. Also they usually come in a body, or departures.
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