John Deere Metallurgical Breakthrough Eliminates Bushing Turns

June 1, 2005
/ Print / Reprints /
ShareMore
/ Text Size+
SC-2, a new alloy coating for dozer undercarriages from John Deere, provides the best combination of hardness, toughness, wear resistance and corrosion resistance properties of any coating on the market. In fact, SC-2 is so durable that an undercarriage featuring SC-2 coated bushings doesn't need bushing turns to hold up over the long term.

SC-2 coated bushings are compatible with existing John Deere undercarriage designs, and will fit many other brands of dozers, as well.

The John Deere SC-2 Extended-Life Undercarriage features coated bushings that are the result of a patented process called GOPALITE developed by John Deere Senior Staff Metallurgist Dr. Gopal Revankar. The process produces a water-based slurry from a heavy alloy-metal powder and several organic additives. The slurry formula suspends the alloy powder and is used to apply the coating to the part surface, producing a coating that's uniform in both thickness and consistency. The ingredients and techniques used greatly reduce the slurry coating's susceptibility to breaking when subjected to high impact.

Intensive laboratory tests prove conclusively that SC-2 coating is 25 percent harder than chrome plating, according to Revankar. SC-2 coated steel held up four times better than parts not protected by SC-2 in a sand abrasion test. A brutal impact test also was performed in which a 220-pound weight was dropped 500 times on an SC-2 coated bushing from a height of 30 inches and the coating remained undamaged. In another lab test, an SC-2 coated bushing was fractured in a hydraulic press and the coating stayed fused to the steel.

The coating also has been tested in the field for the past three years, running on dozers that work year-round with high-impact loads in extremely abrasive soil conditions, including fine sand. Each dozer had one chain with SC-2 coated bushings, and the other chain was equipped with normal production bushings.

Source: John Deere, May 23, 2005

Did you enjoy this article? Click here to subscribe to POB

You must login or register in order to post a comment.

Multimedia

Videos

Image Galleries

HxGN Live

More than 3,500 attendees from more than 70 countries attended HxGN Live, the annual Hexagon AB user conference, at the MGM Grand Hotel & Casino in Las Vegas on June 3-6. About 450 keynotes and panel discussions were held, and several companies from around the world exhibited their geospatial products. Here are a few snapshots from the event.

POB

POB November 2014 Cover

2014 November

In this November 2014 issue of POB, we cover one company's effort to help find good employees. Also, read how drug and alcohol abuse among workers is a tough but necessary conversation.

Table Of Contents Subscribe

Webinars

How many webinars have you participated in over the past 12 months?
View Results Poll Archive

Point of Beginning Store

M:\General Shared\__AEC Store Katie Z\AEC Store\Images\POB\epubsite\Statues-pic-large.gif
Surveyor Statues

The perfect gift or award for any special occasion.

More Products

Clear Seas Research

Clear Seas ResearchWith access to over one million professionals and more than 60 industry-specific publications, Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.

STAY CONNECTED

Facebook logo Twitter logo  LinkedIn logo  YouTube logoRPLS small logo

Google +

Geo Locator

Buyers Guide

The #1 buyers' guide for land surveyors and geomatics professionals. Search listings for software and equipment manufacturers, equipment dealers and professional services. CLICK HERE to view GeoLocator.