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SF-2Y Boundary BearingsZhejiang Fengli Drive Technology Co., Ltd.

Introduction

SF-2Y Boundary lubrication lead-free bearing is improved on the basis of SF-2. Its performance with SF-2 are the same, but the surface does not contain lead, use the field can be extended to the requirements of environmental protection domain.
At present the product has been applied to import textile equipment, plunger pump swing parts, automobile lever parts such as load, medium speed, grease occasions.
The products have been widely used in the field of automobile chassis, forging and pressing machine, metallurgical and mining machinery, engineering machinery, water, electricity, steel rolling industry.

Technical Parameters

Data Code SF-2Y
Material Steel+Bronze+(POM+Pb)
Applications   Products used in automotive chassis, forging machine tools, metallurgical machinery, mining machinery, water conservancy industry, steel rolling industry.
Max Load Capacity P Static Load N/mm² 140
Dynamic Load N/mm² 70
Max Line Speed V Grease Lubrication m/s 2.5
PV Value Limit Grease Lubrication N/mm²·m/s 2.8
Friction Coefficient u Grease Lubrication 0.06~0.12
Mating Axis Hardness HB ＞270
Roughness Ra 0.4~1.25
Working Temperature ℃   -60~+120
Thermal Conductivity W/mk   52
Coefficient Of Linear Xpansion   11×10-6/K
In addition to the standard products shown in the catalog, you can also provide non-standard products or order according to customer requirements.