A bearing assembly includes a first liquid lubricant injector designed to be fed exclusively with non-recycled liquid lubricant to lubricate a bearing. A plurality of drain orifices passes through a bearing ring fixed to a fixed part, and the assembly also includes a second liquid lubricant injector fed with liquid lubricant drained through a collection device for collecting liquid lubricant drained from the orifices, the collection device communicating firstly with a reinjection circuit connected to the second injector, and with a bypass circuit designed to evacuate surplus drained liquid lubricant.