353130 b type compact bearings basic application conditions and application parameters

353130 b type compact bearings 2020 - basic application conditions and application parameters 02 - 13 for railway truck with rolling bearings, generally USES no axle box double row tapered bearing units, through the bearing saddle directly connected with the bogie side frame. Because there was no axle box double row tapered bearing unit with light structure, convenient assembly, maintenance is convenient wait for a characteristic, has been widely used in railway wagon. In order to further meet the needs of railway truck speed, overload, improve the reliability of using bearing developed compact bearings. In order to further meet the needs of railway truck speed, overload, improve the reliability of using bearing, in January 2006, CTBU150 type compact bearings technology have been introduced into China and set up the standard of 353130 b type bearings, design of 353130 b type bearing, in May 2006, 353130 b type bearing loading is applied, realize the localization of 353130 b type bearing. Basic use conditions of low speed: 120 km/h low axle load: 25 tons of low axial load: 23. The maximum axial load 83 tons low: 9. 53 tons of low environmental conditions: - 45° C to + 50 & deg; C low maximum relative humidity: 100% low bearing the maximum permissible temperature rise: 55 & deg; C when preventive maintenance: under the condition of normal use and maintenance, 800000 Km or 8 years ( Will be subject to first come) Basic application parameters low profile size: & Phi; 150年xΦ 250 x160x180。 6毫米( Inner outer ring width x x x diameter high assembly) Low inner ring diameter difference each other: & le; 0. 013 mm low inner ring inside diameter and the axle journal with interference quantity to zero. 051 - 0. 101 mm low grease: railway freight car rolling bearing grease type IV (low pressure equipment and termination of laminating pressure pressed forces: 68. 6 kn ~ 235。 2 kn end joint pressure: 313. 6 kn ~ 352。 8 kn low rear axle installation to clearance: 0. 05 ~ 0. 45mm（ Source: the resources of railway vehicle platform)