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SF-1 Oilless BearingsZHEJIANG DLG TRANSMISSON TECHNOLOGY CO.,LTD(Zhejiang Fengli Drive Technology Co., Ltd.)

Introduction

SF-1 is of oil resistant,acid resistant,alkali resistant and seawater resistant,more over,there is no lead in the PTFE surface layer and so is particularly fit for application in food machinery,alkali flow meters,pumps motion elements in pharmaceutical machines,printing machines chemical engineering machines and other ocean industry.The bushing is a triple layers composites one,the base material is stainless steel back and a film of heat resistant power filled PTFE being calendered onto the sintered spherical bronze interlayer.

Technical Parameters

Data Code SF-1
Material Steel+Ronze+(PTFE+Pb+Filler)
Applications   Products used in printing machinery, textile machinery, tobacco machinery, fitness, and so on.
Max Load Capacity P (Dry Friction) Static Load N/mm2 250
Dynamic Load N/mm2 140
Oscoillation Load N/mm2 60
Max Line Speed V Dry Friction m/s 2.5
Oil Lubrication m/s ＞5
PV Value Limit Dry Friction m/s N/mm2·m/s 1.8
Oil Lubrication m/s N/mm2·m/s 3.6
Friction Coefficient u Dry Friction 0.08~0.20
Oil Lubrication 0.02~0.12
Mating Axis Hardness HB ＞220
Roughness Ra 0.4~1.25
Working Temperature ℃   -200~+280
Thermal Conductivity W/mk   40
Coefficient Of Linear Xpansion   11×10-6/K
Outside Surface Plating   copper/tin
In addition to the standard products shown in the catalog, you can also provide non-standard products or order according to customer requirements.