Iran has executed one of the protestors linked to the recent anti-government unrest in the country. The protestor was confirmed to be a rioter who blocked Tehran main road and injured a member of Basij parliament force with a knife on 25th September, 2022.
According to the state media, Mohsen Shekari was hanged on Thursday morning 8th December, 2022 after being found guilty by a Revolutionary Court of “enmity against God”
Roller chains facilitate power transmission between machineries in most manufacturing industries. They are mostly found in agricultural machines, heavy duty machines, domestic machines, and many more
Besides, they reduce friction between machine parts hence saving cost on damages and repair.
Parts of a roller chain
Bushing: holds the inner plate of roller chains together hence connecting pins to the outer and inner plates and helping to reduce damage on sprocket teeth and around their pins
Pins: are responsible for connecting all parts of the roller chain together firmly
Rollers: allows chain to move freely during work process and cause a reduction in friction
Side Plates: they bear the tension across the chain links, and enable the inner and outer links to transfer the tensile load from pin to pin.
They are mostly found in run conveyors, power machinery, industrial and agricultural machines, wire and tube drawing machines, printing press, cars, motor bicycles, bicycles and for domestic purposes.
They can be found in agricultural machines, industrial machines and for heavy duty purposes. They are mostly used in paper mill equipment, trenches, planters, elevators and lumber mill.
They are mainly used in mining, agriculture and heavy-duty machines
They are one of the widely used roller chains because of their corrosion resistant properties as well as the wide range of temperatures and applications they can work within. They also come in the form of a single, duplex and triple stand roller bearing.
Parts of a stainless-steel roller chain
Pin Link: it forms the outer part of the chain
Roller Link: it comprises of two bushings, two rollers and two inside side plates that are designed to hold everything together
Roller Chain connecting links join two ends of a chain together and come in two configurations which is dependent on their application
Offset links are used to add a “half link” to a strand of roller chain. Any strand of roller chain without the use of an offset will only have an even number of links. This links is primarily used on drives that have shorter lengths of chain where tensioners or adjusters are not used.
How to protect roller chains for effect work and long-lasting effect
Lubrication: Lubricating roller chain and its completing tools makes them last longer and work effectively hence reducing chances of getting damaged early.
Keeping them away from dirt and friction will also make them last longer but in instances where their chains need to be fixed at such dirty places to facilitate work process, it is important that they are cleaned and greased often for them to last a bit longer and run smoothly.
The football federation president of Cameroon; Samuel Eto who doubles as a former football national team player apologizes for his “violent altercation”
A video circulating online shows angry Eto kicking someone with his camera who fell to the ground after an interaction with the said victim.
The former footballer has apologized saying,
“I would like to apologize for losing my temper and reacting in a way that does not match my personality. I apologize to the public for this unfortunate incident,”
According to Eto, he and other Cameroon supporters have been harassed by Algerians after results of the World Cup qualifier earlier this year was out which confirmed that Cameroon qualified for the ongoing 2022 world cup in Qatar but Algeria did not qualify.
He has however promised to keep calm and ignore any harassment by Algerian supporters
“I pledge to continue to resist the relentless provocation and daily harassment of some Algerian supporters. Indeed, since the Cameroon-Algeria match on March 29 in Blida, I have been the target of insults and allegations of cheating without any evidence,” Eto’o said
The current president for Tanzania, Samia Suluhu Hassan has asked that funds allocated for this year’s Independence Day celebration be used in building eight dormitories for children with special needs
George Simbachawene, the country’s minister of state confirmed that the cost for the country’s 61 st Independence Day celebration which is $445,000 has been disbursed for the construction of the dormitories.
This is not the first time the country is reported to have engaged in this benevolent act but by other previous heads of states too.
Ex-President John Magufuli in 2015 also diverted funds for building road in their capital town Dar es Salaam. Also in 2020, he did same for the purchase of some medical facilities for the country
Unmarried individuals living together and engaging in sexual activities are subject to facing the law and serving up to a year in prison. Besides sex before marriage has been also criminalized.
Full complement thrust ball bearing
They include:
Axial loads include:
Suitable industries:
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Double direction thrust ball bearings are types of bearings that can to take axial loads in both directions.
They consist of three rings, along with two balls and cage assemblies. The two balls and cage assemblies are separated by the shaft washer.
In this particular bearing, the balls in them work much better and with high-speed performance
Double direction thrust ball bearing
Features
A cage contains the balls while the grooved aligning seat washer guides them
Washers attached to the shaft are called shaft washer and those attached to the housing are called housing washers
Common applications for double-direction thrust ball bearings include
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The link between climate change and the spread of crop pests has been established by research and evidence.
Farmers are noticing the link themselves, alongside higher temperatures and greater variability in rainfall. All these changes are having an impact on harvests across Africa.
Changing conditions sometimes allow insects and diseases to spread and thrive in new places. The threat is greatest when there are no natural predators to keep pests in check, and when human control strategies are limited to the use of unsuitable synthetic insecticides.
Source: Africa.com
They would do away with tariff barriers such as licensing bureaucracy, regulation restrictions and sanctions for a flexible operation especially in the agricultural sector and export activities for both countries.
They are also known as grease, fluid or dirt seals.
Importance of oil seals
Applications
Seals are used in a wide range of equipment and in thousands of applications, such as
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