... company, and sophisticated in bearing industry. 1- Construction: Taper roller bearings comprise the following types, which we can provide, Single ... row tapered roller bearings, double row tapered roller bearings, four-row tapered roller bearings. 2- Since 1996, we have been ... 1year Appearance Competitive Precision rating ABEC-1, ABEC-2, ABEC-5 We're not selling prices, but services!