1. Product Overview The UK212-2S+H212 complete assembly includes UK212-2S taper bore spherical insert bearing and matching H212 adapter sleeve for heavy-duty transmission equipment. Equipped with 1:12 tapered inner hole, double-sided 2S multi-lip NBR contact seals and built-in grease fitting for periodic relubrication.It is widely used on agricultural harvesters and heavy conveyors working in dusty environments with continuous heavy alternating loads. Get a quote within 24