Subscribe to RSS
UnitedStates Germany Russia India Turkey SouthAfrica England Netherlands Philippines Belgium Australia Brazil Spain China Kore

Super precision Barden bearing help to explore Mars

BARDEN CORPORATION | DANBURY, USA

Curiosity-Barden

Super precision bearings are helping NASA’s latest research rover to withstand the most extreme environments on Mars. The bearings were designed and developed by The Barden Corporation, Schaeffler’s super precision bearing specialist located in Danbury, Connecticut USA.

The size of a small car and weighing just under 900kg, The Mars Science Laboratory rover, Curiosity, is one of the most expensive and technologically challenging planetary science missions ever attempted. Over the course of a two-year mission, the nuclear-powered rover will explore Gale Crater and attempt to climb a three-mile high central mountain.

The environment on Mars is extremely hash and therefore places huge demands on the bearings. Temperatures in the Gale Crater range from -90 to 0 deg C. Hurricanes can also sweep across the surface with top speed of 140km per hour, whirling around huge amounts of sand. Under these conditions, it is critical that the bearings do not fail or present any problems for the NASA control center back on Earth. In addition, maintenance is definitely not available.

Curiosity, which landed on Mars on 6th august 2012, is a six-wheel research rover that uses a suite of sophisticated instruments to help scientists understand the broad history of Mars and whether or not the planet ever hosted a habitable environment. The cost of Curiosity is approximately $2.5bn.

The turret at the end of Curiosity’s robotic arm holds two scientific instruments and three other devices. The arm places and holds turret-mounted tools on rock and soil targets and manipulates the sample-processing mechanisms on the turret. It is strong enough to hold the 33kg turret at full extension of the arm. With the arm extended straight forward, the center of the turret is 1.9m from the front of the rover body. The diameter of the turret, including the tools mounted on it, is almost 60cm.

Barden bearings are located in many positions aboard Curiosity – several of which are positioned in the turret, on the drill bit assembly and in the vibration motor, an integral part of the CHIMRA tool (Collection and Handling for In-situ Martian Rock Analysis).

For the customer, the most important considerations when selecting a supplier of the bearings were design consideration, lowest possible mass, low friction and rapid delivery. The bearings on the drill bit assembly are angular contact (15 degree contact angle) bearings manufactured to ABEC 7 standards, with SAE 52100 steel rings and balls and Phenolic ball retainers.

The bearings on the vibration motor were also manufactured to ABEC 7 standards, with 440C rings, Phenolic ball retainers and were lightly pre-loaded.

This is the fourth time that Barden bearings have landed on Mars. Baden was previously onboard rovers Spirit and Opportunity, and more recently was an integral part of the Phoenix Lander.

 

source: Barden Bearings

0 comments

banner

Add your comment

Nickname:
E-mail:
Website:
Comment:

*

Other articlesgo to homepage

Mineral Circles Bearings take on South Africa in 2017 with top Korean wheel bearing manufacturer ILJIN

Mineral Circles Bearings take on South Africa in 2017 with top Korean wheel bearing manufacturer ILJIN(0)

Dubai, UAE— Accessibility, OEM and aftermarket business. These are the core competence of South Africa as it continues to be the continent’s automotive manufacturing and bearings trade powerhouse. Based on the May 2017 report of the National Association of Automobile Manufacturers of South Africa (NAAMSA), the country produced last year a total of 600,007 units

Mineral Circles Bearings Announces Its Participation at Automechanika Johannesburg 2017

Mineral Circles Bearings Announces Its Participation at Automechanika Johannesburg 2017(0)

Join MCB at hall 5, stand 5G60 and experience Automechanika Johannesburg at its finest! DUBAI, United Arab Emirates, August 2, 2017—Mineral Circles Bearings (MCB), one of Middle East and Africa’s trusted bearing distributors and manufacturers, announces its first ever participation in Automechanika Johannesburg, Africa’s premier automotive trade show, on the 27th – 30th of September 2017 at the JHB Expo

CRAFT Bearings – the new main partner of Antanas Juknevičius’ Dakar team

CRAFT Bearings – the new main partner of Antanas Juknevičius’ Dakar team(0)

  The Lithuanian team of Antanas Juknevičius and Darius Vaičiulis, which is going to compete in the 2017 Dakar during January 2017, made an agreement with its main partner and will have a new name – CRAFT Bearings CRAFT Bearings, an international company established by Lithuanians, is a manufacturer of automotive and industrial bearings with operations

ZKL launched Cylindrical Roller bearing PLC_412-63

ZKL launched Cylindrical Roller bearing PLC_412-63(0)

Employees of ZKL successfully finished development and production of a large dimensional cylindrical roller bearing PLC_412-63 for important foreign customer. For a better imagine, here are the basic parameters: Outer diameter: 900 mm Height: 210 mm Weight: 612 kg Finishing operations turning and grinding of components were made on modern machines, which were obtained with

Roller bearings for the High Roller

Roller bearings for the High Roller(0)

The American Bridge Company has contracted SKF to supply technological solutions for the Las Vegas High Roller, soon to be the world’s tallest Ferris wheel. SKF is providing Caesars Entertainment Corporation’s 170-metre-tall Ferris wheel with two custom-designed spherical roller bearings along with related technologies. The two spherical roller bearings weigh approximately 8.8 tonnes each, with

read more

Contacts and information

Social networks

Most popular categories

Legal Notice

© 2012 BEARING NEWS All rights reserved.