Grease For Slide Bearing

Abstract

Grease for a slide bearing, which can suppress unusual noise attributable to a slip caused between a shaft and a bearing when a machine is stopped. In slide bearing grease 24 supplied to between a slide bearing 16 formed of a porous sintered alloy-made bushing having pores 30 impregnated with lubricating oil 31 and a shaft 22 inserted in the slide bearing 16 and supported to be slidingly rotatable in the circumferential direction, the slide bearing grease 24 employs base oil having dynamic viscosity of 10-70 mm 2 /s at 40° C. and exuding under a load of the shaft 22 to form an oil film 35 between the slide bearing 16 and the shaft 22.

1 . Slide bearing grease supplied to between a slide bearing formed of a porous sintered alloy-made bushing having pores impregnated with a lubricating material and a shaft inserted in said slide bearing and supported to be slidingly rotatable in the circumferential direction, 
 wherein the slide bearing grease contains base oil having dynamic viscosity of 10-70 mm 2 /s at 40° C. and exuding under a load of said shaft to form an oil film between said slide bearing and said shaft.    
   
   
       2 . Slide bearing grease supplied to between a slide bearing formed of a porous sintered alloy-made bushing having pores impregnated with a lubricating material, in which a solid lubricant is mixed, and a shaft inserted in said slide bearing and supported to be slidingly rotatable in the circumferential direction, 
 wherein the slide bearing grease contains base oil having dynamic viscosity of 10-70 mm 2 /s at 40° C. and exuding under a load of said shaft to form an oil film between said slide bearing and said shaft.    
   
   
       3 . Slide bearing grease supplied to between a slide bearing formed of a porous sintered alloy-made bushing having pores impregnated with a lubricating material and a shaft inserted in said slide bearing and supported to be slidingly rotatable in the circumferential direction, 
 wherein the slide bearing grease contains base oil having dynamic viscosity lower than that of the lubricating oil and exuding under a load of said shaft to form an oil film between said slide bearing and said shaft.    
   
   
       4 . Slide bearing grease supplied to between a slide bearing formed of a porous sintered alloy-made bushing having pores impregnated with lubricating oil and a shaft inserted in said slide bearing and supported to be slidingly rotatable in the circumferential direction, 
 wherein the slide bearing grease contains base oil having dynamic viscosity of 10-70 mm 2 /s at 40° C. and exuding under a load of said shaft to form an oil film between said slide bearing and said shaft, the slide bearing grease being added with at least a solid lubricant.    
   
   
       5 . Slide bearing grease supplied to between a slide bearing formed of a porous sintered alloy-made bushing having pores impregnated with lubricating oil and a shaft inserted in said slide bearing and supported to be slidingly rotatable in the circumferential direction, 
 wherein the slide bearing grease contains base oil having dynamic viscosity lower than that of the lubricating oil and exuding under a load of said shaft to form an oil film between said slide bearing and said shaft, the slide bearing grease being added with at least a solid lubricant.    
   
   
       6 . The slide bearing grease according to  claim 2  wherein said solid lubricant contains at least one selected from among organic molybdenum, molybdenum disulfide, tungsten disulfide, boron nitride, graphite, nylon, polyethylene, polyimide, polyacetal, polytetrafluoroethylene, and polyphenylene sulfide.  
   
   
       7 . The slide bearing grease according to any one of  claim 1 , wherein an extreme-pressure agent and a greasy agent are added in the slide bearing grease.