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Self Lubricating Bearings Low-Carbon Steel + Porous Bronze + Red PTFE

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Self Lubricating Bearings Low-Carbon Steel + Porous Bronze + Red PTFE

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Brand Name :	TOB PTFE Self-Lubrication Bearings
Certification :	ISO 16949
Price :	negotiated
Payment Terms :	T/T
Supply Ability :	negotiated
Delivery Time :	negotiated

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Self Lubricating Bearings Low-Carbon Steel + Porous Bronze + Red PTFE

It is backed with low-carbon steel with porous bronze sintered on the steel and polymers imbedded into the bores of the bronze. The steel back provides the bush with stronger mechanic strength and load capability. By combining the metals and the polymers together, the products are endowed with the lower friction coefficient and good capacity of anti-abrasion and self-lubrication. Moreover, it is a lead-free and environment protection product. This series are widely applied in printing, weaving and tobacco producing machines, gymnastic equipment, shock absorbers, etc.

Physical and Mechanical Performance

Performance Index		Data	Performance Index		Data
Max. Load	Static Load	250N/mm²	Friction Coefficient	Grease Lubrication	0.08~0.20
	Dynamic Load	140N/mm²	Friction Coefficient	Oil Lubrication	0.02~0.07
	Oscillation Load	60N/mm²	Mating Axis	Hardness	>120 HB
Linear Velocity	Grease Lubrication	2 m/s	Mating Axis	Roughness	Ra=0.4~1.25
Linear Velocity	Oil Lubrication	5 m/s	Working Temperature		-200~+280℃
Max. PV value	Grease Lubrication	3.6 N/mm²·m/s	Heat-conducting Coefficient		40 W/(m*k)
Max. PV value	Oil Lubrication	50 N/mm²·m/s	Heat-expansion Coefficient (Axial)		11*10^-6k

Physical and Mechanical Performance

Normally, the surface polymer is chemical-erosion resistant quality. However it can be eroded by fused alkali metal and high temperature fluorine compounds. Therefore its erosion-prevention quality is primarily decided by the quality of the steel back and its plating layer. Air-erosion could be effectively prevented if the steel back is bronze or tin-plated. If the bush is to be used in corrosive environment, the steel back needs to be plated with lead, zinc, nickel or nickel-chrome ally, etc.

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