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PTFE Metric Sleeve Bearings / Self Lubricating Bronze Bushings

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PTFE Metric Sleeve Bearings / Self Lubricating Bronze Bushings

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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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PTFE Metric Sleeve Bearings / Self Lubricating Bronze Bushings

It is backed with tin-bronze with porous bronze sintered on it and polymers imbedded into the bores of the bronze. The tin-bronze 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, the tin-bronze back is good heat conducting capability. This series are widely applied in metallurgy machine and casting machines, consecutive casting machines, cemetery machines, spiral transporting machines, 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	2.5 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		60 W/(m*k)
Max. PV value	Oil Lubrication	50 N/mm²·m/s	Heat-expansion Coefficient (Axial)		18*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. But tin-bronze back can prevent air-erosion.

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