Lubricating device for bearing

The utility model discloses a lubricating device for a bearing. The device comprises a lubricating oil tank installed on the outer side of a bearing end cover, an oil inlet and an oil outlet are formed in the lubricating oil tank, a flow guide channel is formed in the bearing end cover, the oil outlet of the lubricating oil tank and the flow guide channel are coaxially arranged, one end of the flow guide channel is connected with a flow guide pipe, and one end of the flow guide pipe directly faces balls of a bearing. Lubricating oil in the lubricating oil tank enters the bearing through the oil outlet and the flow guide pipe in sequence to lubricate the bearing, so that the service life of the bearing is prolonged; the lubricating device can lubricate the bearing under the condition that the bearing end cover is not disassembled, the lubricating oil filling time is shortened, the efficiency is improved, and the lubricating device is simple in structure, convenient to install and easy to implement. 本实用新型公开了一种用