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P4012Z Bronze Copper-tin Oil Sintered Slide Bush Bearing

BS 5600-5.1:1988
ISO 5755-1:1987
BS EN ISO 5755:2022
P4012Z
Product description: The P4012Z bronze copper-tin oil sintered slide bush bearing adheres to BS 5600-5.1:1988, ISO 5755-1:1987, and BS EN ISO 5755:2022 standards. Aligned with DIN 30910, these self-lubricating bearings wo
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P4012Z Bronze Sintered Bearing Material

Medium-density bronze sintered bearing material, oil-impregnated per BS 5600-5.1:1988 / ISO 5755-1:1987. Good balance of strength and oil retention for general industrial bearings.

Chemical Composition (BS 5600-5.1:1988)

Element	Content	Unit
C total	<0.3	%
Cu	Balance
Fe	—
Sn	9–11	%
Other elements	—	≤2

Mechanical & Physical Properties

Property	Unit	Value
Open porosity (P)	%	≥22
Radial crush strength (K)	N/mm²	≥140
Density (—)	g/cm³	6.6
Relative density (—)	%	75
Coefficient of linear expansion (μz)	10⁻⁶K⁻¹	18

The Z suffix indicates the material has been impregnated with liquid lubricant per ISO 5755. The liquid lubricant content shall be not less than 90% of the measured open porosity. Open porosity and radial crush strength are mandatory values as specified in BS 5600-5.1:1988 / ISO 5755-1:1987 / BS EN ISO 5755:2022.

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