The influence of overheat on the performance and service life of outer spherical bearing housing
The influence of overheat on the performance and service life of outer spherical bearing housing
PRODUCT
Railway wagon 353130 a main characteristics and performance parameters of the compact bearings
by：Waxing
2020-11-15
Railway wagon 353130 a main characteristics and performance parameters of the compact bearings 2020 -
02 -
21 in order to further meet the needs of railway truck speed, overload, improve the reliability of using bearing developed 353130 a type of compact bearings, the main characteristics of the compact bearings is to reduce the bearing parts, shorten the total axial bearing width, and improve the effects of fretting wear on the bearing performance.
Main characteristics in pieces 353130 a compact rolling bearing cancel within the oil seal and seal seat, shorten the axial width of bearing, the plastic cage, stable sealing effect, to adapt to the current maintenance system.
Mixer main performance parameters of the commercial operation speed of 120 km/h axle load 25 t (
245 kn)
Design life of 200 & acute;
104公里(
Wheel diameter by & phi;
820 mm)
- running environment temperature
45°
C ~ + 50度;
C, and can adapt to thaw the 3 hours, 110 & deg;
Thaw C runtime environment humidity 100% railway vehicle rolling bearing grease Ⅳ type grease maximum permissible temperature rise 50 & deg;
C ring material using esr G20CrNi2MoA carburizing bearing steel;
Roller adopts the electroslag remelting GCr15 bearing steel;
Cage using glass fiber reinforced polyamide rated dynamic load of 962 kn rated static load of 1926 kn bearing axial clearance freedom 0.
60毫米~ 0。
70 mm cage radial winding quantity to zero.
15mm～0.
65 mm note 430 g ~ 480 g fat (
Source: the resources of railway vehicle platform)
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