There are several types of bearings, and each has its own interesting uses, including magnetic bearings and giant roller bearings.
Magnetic Bearings Some very high-speed devices, like advanced flywheel energy storage systems, use magnet bearings. These bearings allow the flywheel to float on a magnetic field created by the bearing.Some of the flywheels run at speeds in excess of 50,000 revolutions per minute (rpm). Normal bearings with rollers or balls would melt down or explode at these speeds. The magnetic bearing has no moving parts, so it can handle these incredible speeds.
Giant Roller Bearings Probably the first use of a bearing was back when the Egyptians were building the pyramids. They put round logs under the heavy stones so that they could roll them to the building site.This method is still used today when large, very heavy objects like the Cape Hatteras lighthouse need to be moved.
Earthquake-Proof Buildings The new San Francisco International Airport uses many advanced building technologies to help it withstand earthquakes. One of these technologies involves giant ball bearings. to see the earthquake bearing support system at work.The 267 columns that support the weight of the airport each ride on a 5-foot-diameter (1.5-meter) steel ball bearing. The ball rests in a concave base that is connected to the ground. In the event of an earthquake, the ground can move 20 inches (51 cm) in any direction. The columns that rest on the balls move somewhat less than this as they roll around in their bases, which helps isolate the building from the motion of the ground. When the earthquake is over, gravity pulls the columns back to the center of their bases.
Protecting bearings is critical to a motor's reliability and useful life.
That's why Baldor Electric Company, Fort Smith, Ark., is now using Exxon Polyrex EM polyurea grease to extend bearing life in its industrial electric motors from 1/50 to 1,500 hp.In tests to 350°F, the new grease reportedly extends lubrication life for bearings by more than four times when compared to other polyurea greases. It is also more durable when subjected to mechanical shearing forces, says the company. A specially formulated additive system resists washout, rust, and corrosion, even when exposed to saltwater.
ARB Bearings Limited
H-22, Udyog Nagar
New Delhi - 110041, Delhi, India
Phone: +(91)-(11)-25471274 / 25471255 / 25186300
Fax: +(91)-(11)-25475455 / 25470126
Email: info@arb-bearings.com, export@arb-bearings.com, sales@arb-bearings.com
For Export Enquiry :
Mr. Divay Rathee : +91-9968373086
Website: http://arb-bearings.com/contact-us.php
Magnetic Bearings Some very high-speed devices, like advanced flywheel energy storage systems, use magnet bearings. These bearings allow the flywheel to float on a magnetic field created by the bearing.Some of the flywheels run at speeds in excess of 50,000 revolutions per minute (rpm). Normal bearings with rollers or balls would melt down or explode at these speeds. The magnetic bearing has no moving parts, so it can handle these incredible speeds.
Giant Roller Bearings Probably the first use of a bearing was back when the Egyptians were building the pyramids. They put round logs under the heavy stones so that they could roll them to the building site.This method is still used today when large, very heavy objects like the Cape Hatteras lighthouse need to be moved.
Earthquake-Proof Buildings The new San Francisco International Airport uses many advanced building technologies to help it withstand earthquakes. One of these technologies involves giant ball bearings. to see the earthquake bearing support system at work.The 267 columns that support the weight of the airport each ride on a 5-foot-diameter (1.5-meter) steel ball bearing. The ball rests in a concave base that is connected to the ground. In the event of an earthquake, the ground can move 20 inches (51 cm) in any direction. The columns that rest on the balls move somewhat less than this as they roll around in their bases, which helps isolate the building from the motion of the ground. When the earthquake is over, gravity pulls the columns back to the center of their bases.
Protecting bearings is critical to a motor's reliability and useful life.
That's why Baldor Electric Company, Fort Smith, Ark., is now using Exxon Polyrex EM polyurea grease to extend bearing life in its industrial electric motors from 1/50 to 1,500 hp.In tests to 350°F, the new grease reportedly extends lubrication life for bearings by more than four times when compared to other polyurea greases. It is also more durable when subjected to mechanical shearing forces, says the company. A specially formulated additive system resists washout, rust, and corrosion, even when exposed to saltwater.
ARB Bearings Limited
H-22, Udyog Nagar
New Delhi - 110041, Delhi, India
Phone: +(91)-(11)-25471274 / 25471255 / 25186300
Fax: +(91)-(11)-25475455 / 25470126
Email: info@arb-bearings.com, export@arb-bearings.com, sales@arb-bearings.com
For Export Enquiry :
Mr. Divay Rathee : +91-9968373086
Website: http://arb-bearings.com/contact-us.php
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