Oiless Composite Self Lubricating Bearings

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Product Parameter

Material:	Low-Carbon Steel + Porous Bronze + PTFE	Types:	Wrapped Bushes, Flanged Bearing, Thrust Washer
Application:	Printing, Weaving And Tobacco Producing Machines, Gymnastic Equipment, Rock Absorbers, Etc.	Working Temperature:	-200~+280℃
Max. Load:	Static Load 250N/mm², Dynamic Load 140N/mm²	Max. PV Value:	Grease 3.6 N/mm²·m/s, Oil 50 N/mm²·m/s
High Light:	metric sleeve bearings ,  self lube bearings

PTFE Self-Lubrication Multilayer Composite Bearings
 

Description:

· SF 1W is a new type bushing without lead composition which is developed aiming at increasing demands on environmental protection. Besides it is wide application on general machines
 

Structure:

1.PTFE with fiber 0.01~0.03mm
2.Porous bronze 0.2~0.3mm
3.Steel backing 0.7~2.3mm
4.Tin-plating 0.005mm or copper plating 0.008mm
 

Technical:

Load capacity: 140N/mm2 Temperature:-195~+280°C
Speed limit: 5m/s Friction coef(u):0.04~0.20
PV LIMIT (Dry):3.6N/mm2 .m/s PV LIMIT (OIL):50N/mm2 .m/s
 

CHEMICAL CHARACTERISTIC:

TYPE	In Air	In Vacuum	In water	In Vapor	Weak Acid	middle Acid	Strong Acid	In Alkali
SF 1W	OK	OK	OK	OK	BAD	NO	NO	OK

 

Application

SF-1W is particularly suitable for food machine, Pharmaceutical machine, tobacco, machine etc.
Quality Control:
MMD-10 Friction & Wear Test:

Type	Time	Test Condition			Friction coef(u)	TEMP.	Wear
		Lubricate	Speed	Drang		(°C)	(mm)
SF 1W	3hr	Dry	0.4m/s	3.5N/mm2	0.156	93	0,009
SF 1W	3hr	Oil	0.4m/s	3.5N/mm2	0.056	52	0,01

 

Packaging & Delivery

1. Inner Packing: Bubble Bag, Plastic Bag, Anti-rust Paper;
2. Outer Packing: Carton / Wooden Case;
3. According to customers' requirement
 

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		Oil Lubrication	0.02~0.07
	Oscillation Load	60N/mm²	Mating Axis	Hardness	>120 HB
Linear Velocity	Grease Lubrication	2.5 m/s		Roughness	Ra=0.4~1.25
	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)
	Oil Lubrication	50 N/mm²·m/s	Heat-expansion Coefficient (Axial)		11*10^-6k