MG-090 Bronze Cylindrical Bushings Specication & Tolerance1-ProductsJiashan Marginal Bearing Co., Ltd.

270,MG-090 270100,MG-090 27090,MG-090 27080,MG-090 27070,MG-090 27060,-,-,-,-,-,-,-,-

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Specifiche e tolleranza delle boccole cilindriche in bronzo MG-0901

◆ Introduction

MG-090 bronze self-lubricating bearings use a kind of high density bronze alloy of special compositions as backing, the surface of alloy is rolled with diamond pattern of the oil indents or half ball oil indents, this kind of bearing has a higher density, a higher load capacity and a better anti-wear resistant performance. It has been widely used in many fields such as hoist machine, building machinery, machine tool industry and mining machinery.

◆ Chemica Composition

Chemica Composition
Material	Cu %	Sn %	P %
CuSn8	Rest	7.0～9.0	0.03～0.45

◆Technical Data

Technical Data
	MG-090 Bronze Wrapped Bushing	MG-090T Bronze Wrapped Bushing	MG-09G Bronze +Graphite Wrapped Bushing	MG-H68 Copper Wrapped Bushing
Data
Density	8.9g/cm³	8.9g/cm³	8.3g/cm³	8.4g/cm³
Pressure resistance strength	470N/mm	470N/mm	470N/mm	440N/mm
Coecient of heat conduction	60W/m.k	60W/m.k	58W/m.k	71W/m.k
Linear expansion coecient	18.5×10 /K	18.5×10 /K	18.5×10 /K	19.2×10/K
Hardness	90~120 HB	90~120 HB	90~120 HB	80~110 HB
Elongation	0.55	0.55	0.55	0.3
Alloy material	CuSn8P	CuSn8P	CuSn8P	CuZn31Si
Other material	CuSn6.5P	CuSn6.5P	CuSn6.5P