1.Used as an accessories of automatic rollers ... if transport materials can be below 50C.Structure features: 1.Mass transport 2. Simple structure 3. Easy maintenance 4 ... . Roller Diameter:25.4, 38.1, 50.8, 57, 60, 63, 75, 89, 104(mm). Installation method: spring shaft, inner ... roller. Small end diameter of taper roller:38.1 mm, 50.8 mm.Supporting Bearing: precision bearing, pressing bearing, and ...