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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

Place of Origin : China

MOQ : negotiated

Price : negotiated

Payment Terms : T/T

Supply Ability : negotiated

Delivery Time : negotiated

Packaging Details : Cartons and Pallets

Material : Tin-Bronze + Porous Bronze + PTFE

Types : Wrapped bushes, Flanged bearing, Thrust washer

Application : metallurgy machine and casting machines, consecutive casting machines, cemetery machines, spiral transporting machines, 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

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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 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 60 W/(m*k)
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.

PTFE Metric Sleeve Bearings / Self Lubricating Bronze BushingsPTFE Metric Sleeve Bearings / Self Lubricating Bronze BushingsPTFE Metric Sleeve Bearings / Self Lubricating Bronze Bushings


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