The updated evaluation revises the outcome of EFSA’s previous assessment published in 2016, which highlighted the need for more research to fill data gaps.
The produced barium sulfide enters the leacher, and the temperature is controlled above 65°C to obtain a barium sulfide content of 70%, and then enters the clarification barrel, add zinc sulfate for reaction after clarification, control the zinc sulfate content to be greater than 28%, pH=8~9, and obtain a mixture of barium sulfate and zinc sulfide with a density of 1.296~1.357 g/cm3.
R-895 pigment has good dispersing properties and can be easily and quickly dispersed into the binder solvent.
Plain Bearings: Also known as bushings or sleeve bearings, plain bearings consist of a simple cylindrical design without rolling elements. They rely on a sliding motion to reduce friction and are often used in low-speed, high-load applications such as in agricultural machinery, construction equipment, and industrial machinery. Plain bearings are valued for their ability to handle heavy loads and operate in harsh environments.
In summary, roller bearings are used in a diverse range of applications across various industries, where their ability to support radial and axial loads, provide high load-carrying capacity, and withstand demanding conditions is essential.
They are commonly used in industries like mining, wind turbines,, and heavy machinery where exposure to dust, water, or extreme temperatures is prevalent They are commonly used in industries like mining, wind turbines,, and heavy machinery where exposure to dust, water, or extreme temperatures is prevalentsealed cylindrical roller bearing. The seals ensure reliable performance even under these challenging conditions, reducing the need for frequent cleaning or relubrication.
- Spherical Roller Bearings: Spherical roller bearings have barrel-shaped rollers that are guided by inner and outer ring raceways with a common spherical raceway on the outer ring. This design allows the bearing to accommodate misalignment and axial displacement, making them suitable for applications where shaft deflection or misalignment is present.