Indonesian search and rescue personnel confirmed on the 23rd that a ferry capsized in the waters near Riau recently, and ten people were missing in the accident. The wooden boat carrying 20 people set off from Rupa Island in Riau on the evening of 21st and sank shortly after. In the past, fishers successfully rescued ten people into the water, and the whereabouts of others were unknown. Passengers on board were Indonesian workers from neighboring provinces and cities, trying to cross the Straits of Malacca by boat to opposite Malaysia to find work. Currently, Indonesia has notified Malaysia and requested assistance in search and rescue.
The Search and Rescue Bureau and local police have dispatched four ships for rescue. Besides, Indonesian Air Force helicopters also joined the search and rescue operation. Survivors said that the bilge had suddenly flooded a lot while the ferry was running, and capsizing may be related to this.
Besides, bearings are essential components of ferries. Among them, deep groove ball bearings are the most representative rolling bearings. Compared with other type of bearings of the same size, this type of bearing has a small friction coefficient, high limiting speed, simple structure, low manufacturing cost, high accuracy, no need for frequent maintenance, and an extensive size range and many forms, which is the most widely used type Bearings. It mainly bears the radial load and can also take the absolute axial load.
After the deep groove ball bearings is installed on the shaft, the axial displacement of the shaft or the house can be limited in the axial clearance of bearings so that it can be axially positioned in both direction. When the deep groove ball bearings has an ample radial clearance, it has the performance of angular contact bearings and can bear a large axial load. Under high-speed operating conditions with large axial loads, deep groove ball bearings are superior to thrust ball bearings. Besides, this type of bearing also has a particular self-aligning ability. When it is inclined 2 inch to 10 inch relatives to the housing hole, it can still work usually, but it has a specific impact on the bearing life.