First, gearbox bearing:
Rolling major role in the gearbox shaft and supported to be stable drive force. This means that they must withstand extreme loads in a complex environment. Main types of tapered roller bearings, four point contact bearings and cylindrical roller bearings. Secondly, the use of
Deep groove ball bearings, spherical roller bearings and angular contact ball bearings. F & Z bearing arrangement diverse, mainly based on the design and operating conditions of the gearbox may be.
Gearbox bearing with the main requirements are: high-speed, high load, vibration and shock resistance, high temperature, high precision guidance, compact design according to the manufacturer's gearbox to select the size of the bearing, taking into account the above factors. General requirements for calculating life of more than 1.5 million km.
F & Z gearbox bearing characteristics are: enhanced interior design, special cage design; tolerance is reduced and adjusted internal clearance; design with snap groove on the outer ring to prevent it from rotating; adjust the tolerances and internal clearance; effective ceramic insulation
Second, the traction motor bearings:
Rolling bearings for traction motors must meet the reliable operation and long service life challenging requirements. By F & Z Group develops traction motor bearings are all based on the actual needs of special design. Here usually cylindrical roller bearings and ball bearings. They calculated life due to the following design may generally be greater than 2 million kilometers.
His main features are: a special cage design, enhanced interior design, adjustment tolerances and internal clearance, efficient ceramic insulation
Third, hold the axle box bearings:
In electric freight locomotives, hold the axle box with two rolling bearings are installed to support the transverse configuration of traction motors. Traction motor bearings by holding direct hang wheel shaft. In order to hold the bearings for long operating life (usually running z life should be more than one million kilometers), roller bearings for use herein should have a high load carrying capacity. High vibration and shock loads generated by commonly used special cone with a reinforced metal stamping cage Roller Bearing. Specially designed with a flange or outer layer of insulation can also be supplied on demand.