This is one of our over 100 Success Stories detailed on www.vesconite.com

	Lowest friction and wear   Easy to machine and install

Despite dedicated lubrication, bronze bearings "picked up" and operation was noisy with excessive wear during initial 24 hour tests on four 1 million tons per month underground jaw crushers. Because the oscillation was so slight, the lubrication did not spread sufficiently, resulting in high bronze wear.

Self-lubricating Vesconite was put through a stringent 3 week evaluation as the mine production depended on the crushers operating successfully even though grease did not spread across the whole bearing surface.

• Operation was quiet

• No wear on the bush

• No shaft wear

After more than 12 months of operation underground, the Vesconite bearings are still performing, with the following advantages:

• Ease of installation - By freezing Vesconite with dry ice, installation does not require heavy equipment, even 1250 m (4100') underground.

• Ease of removal (if required) without heavy equipment. Instead of machining out the bronze, Vesconite can be removed by freezing or easy destructive methods.

• The slightly larger running clearance and softer material than bronze means Vesconite can operate with a slight housing misalignment without line boring.

• Vesconite is stocked in the large bearing sizes required for the application.

• Vesconite performs even if lubrication is temporarily suspended.

Crusher weight:	250 tons
Mass of swing stock:	59 tons
Bearing size:	590 x 500 – 760 mm long (23" x 20" – 30")
2 bearings per swing jaw
Oscillation:	4 mm (0.16") @ 170 RPM