Abstract:
A lubrication system for lubricating at least one bearing includes a sensor configured to sense a condition of the at least one bearing, such as vibration or temperature, and a dispenser configured to deliver lubricant to the bearing. A control is coupled with the sensor and configured to operate the dispenser such that lubricant is delivered to the bearing when the condition has a value of either at least a predetermined value or lesser than a predetermined value. Preferably, the control is further configured to operate the dispenser to periodically deliver a predetermined quantity of the lubricant to the bearing. Further, the control is preferably further configured to provide an alarm when the value of the condition is either at least the predetermined value for a predetermined period of time or lesser than the predetermined value for a predetermined period of time.
Abstract:
A high speed antifriction bearing (A, E, J) receives minute quantities of high performance grease or oil at selected intervals from an electrically controlled injector (D, H, I) having a nozzle (84, 184) that is directed at the rolling elements (6, 154) of the bearing. By minimizing the lubricant in the bearing, the lubricant does not accumulate in quantities that render it susceptible to working. The high performance lubricant produces a boundary layer film between contacting critical surfaces (14, 20, 30, 34, 36, 154, 156, 158) within the bearing. That film is so thin that it has little capacity to churn or work and produce heat. The injector may be the type used for electronic injection of diesel fuel into the cylinders of diesel engines.
Abstract:
The invention provides a rolling bearing lubricating method and device, which are capable of showing stabilized temperature rise while securing lubrication reliability. This rolling bearing lubricating method, which is a lubricating method for feeding lubricating oil during operation of a rolling bearing, comprises the step of automatically or manually changing the feed rate of lubricating oil during operation by a feed rate changing means (102) in order to keep the temperature of a rolling bearing (103) in a preset permissible range. The feeding of lubricating oil is effected in an air oil state by using a lubricating oil feeding means (101). The feed rate of lubricating oil is changed according to the rotative speed of the rolling bearing (103). The feed rate change of lubricating oil according to the rotative speed is effected under a plurality of lubrication conditions with the lubricating oil feed rate varied, on the basis of the sampling result obtained by sampling data on temperature rise for the rolling bearing (103) according to the rotative speed.
Abstract:
The present invention relates to a bearing assembly comprising at least one rolling element bearing (102, 105) and at least one lubrication device (100). The rolling element bearing comprises an inner ring (152, 155), an outer ring and at least one set of rolling elements disposed within a cavity of the bearing on opposing inner and outer raceways. The lubrication device (100) comprises an oil reservoir and a pump drive mechanism. The assembly is further provided with an oil supply line, which is in connection with the reservoir and which has a discharge orifice (148, 151 ) arranged inside the bearing cavity in proximity to a rolling contact zone of the bearing. According to the invention, the pump drive mechanism is an electro-osmotic member which pumps a drive fluid, whereby the drive fluid exerts pressure on the oil reservoir in order to effect a supply of oil to the rolling contact zone.
Abstract:
Eine Vorrichtung zum Mischen eines ersten gasförmigen Fluids mit einem zweiten flüssigen Fluid beinhaltet ein Ausgabeelement für das zweite Fluid zum Ausgeben des zweiten Fluids in einen dem Mischen der beiden Fluids dienenden Raum, wobei das Ausgabeelement derart ausgebildet ist, dass in einem Ausgabeintervall eine Ausgabemenge kleiner 5000 nl ausgebbar ist.
Abstract:
An oil composition for cutting and grinding by ultra low volume oil feed system, comprising ester, sulfuric compound, and/or phosphorus compound, whereby a working efficiency, a tool life, and easiness of handling can be increased in a method of cutting and grinding by ultra low volume oil feed system.