tapered roller bearing 31304 Structure:Taper Type: Roller Bore Size: 20 mm Outside Diameter: 52 mm Model Number: 31304 Precision Rating: ABEC1,ABEC3,ABEC5 Seals Type: OPEN Number of Row: Single Row Place of Origin: China (Mainland) Material: Chrome steel,Carbon steel,Stainless s... Certificate: ISO9001:2000 Service: OEM Vibration: Z1V1,Z2V2,Z3V3 Closures: OPEN,ZZ, 2RS Main market abroad: Europe,America,Africa,Middl... Quality: Genuine,Original,OEM brand,Low price,p... Standard: Normal standard Technology: low vibration, low noise, high precision and durability small & miniature standard and non-standard ball berings Brand: Our brand is TGU.OEM Service Offered,Buyer Label Offered, SKF FAG NSK NTN INA TIMKEN KOYO IKO Tapered roller bearing:The inner and outer ring raceways are segments of cones and the rollers are also made with a taper so that the conical surfaces of the raceways and the roller axes if projected, would all meet at a common point on the main axis of the bearing. Features: 1) Good quality, competitive prices. 2) Wide application and attractive appearance. 3) Widely used in general machinery, automobiles, agricultural machinery and so on 4)The range of inner diameter size is below 1600mm Series:30200 series, 30300 series, 32000 series, 32200 series, 32300 series, 31000 series, 33000 series, 33100 series 33200 series, non-standard series Type:Single-row taper roller bearing,Double-row taper roller bearing,Four-row taper roller bearing,auto bearing,Machine-tool bearing,Construction bearing ,Heavy-duty bearing Applications :tapered roller bearings are used in back-to-back pairs so that axial forces can be supported equally in either direction. Applications for tapered roller bearings are commonly used for moderate speed, heavy duty applications where durability is required. Common real world applications are in agriculture, construction and mining equipment, axle systems, gear box, engine motors and reducers. If u have any interests feel free to contact with Jenny Skpye:tgubearing01 Mail:summer(at) MSN: tgubearing07(at) Skpye:tgubearing01