Excavators And Loaders Oil Filter Cartridges 1097289 Excavator Fuel Filters

The Application of HRB bearings in Construction Machinery

The following are the core application scenarios and technical adaptation solutions of HRB bearings in construction machinery, elaborated in combination with the requirements of key components:
I. Application Scenarios of Core Components
1. Youdaoplaceholder0 slewing bearing system ‌
Youdaoplaceholder0 Bearing type ‌ : custom three-row roller slewing bearing
Youdaoplaceholder0 Functional features ‌ :
Support the 360° rotation of the upper vehicle body, with an anti-overturning moment design (capable of bearing a self-weight of thousands of tons)
The roller diameter is strengthened by 10% to resist the impact load of mining equipment, and the quenching depth of the raceway is ≥5mm ‌
Youdaoplaceholder0 Sealing scheme ‌ : labyrinth type + fluororubber lip seal combination, dust-proof efficiency > 95% ‌
2. Youdaoplaceholder0 traveling wheelset ‌
Youdaoplaceholder0 hub bearing ‌ : self-aligning roller bearing (such as 22230 series)
Axle diameter 150mm grade, resistant to track jolting and vibration (surface carburized hardness 60-62HRC)
The 700-ton class wheelset adopts tapered roller bearings (model 32224), with a preload clearance of 0.08-0.12mm
Youdaoplaceholder0 Protective design ‌ : Dual protection with a metal dust cover and a rubber sealing cover (suffix 2RS)
3. Youdaoplaceholder0 hoisting mechanism ‌
Youdaoplaceholder0 drum bearing ‌ : cylindrical roller bearing (NU series)
The 500-ton drum is standard equipped with type 3522 (22222), with a 40% increase in radial load-bearing capacity ‌
Youdaoplaceholder0 hook pulley block ‌ :
The 32-ton class is equipped with a combination of deep groove ball bearings (6226) and thrust ball bearings (51228)
The independent sealed grease lubrication cavity design can withstand the tensile force of the steel wire rope in both directions
Ii. Advantageous Technology Labels
Youdaoplaceholder0 Load density optimization ‌ : Thin-walled deep groove ball bearings (such as HRB6000 series) reduce radial space occupation by 30% ‌
Youdaoplaceholder0 deviation compensation capacity ‌ : self-aligning roller bearings (CARB type) automatically compensate for shaft deflection ±3° ‌
Youdaoplaceholder0 maintenance-free design ‌ : The glue seal model (suffix RZ) is pre-filled with grease and requires no oiling for life
Youdaoplaceholder0 Maintenance warning ‌ :
When the axial clearance of the wheel set is greater than 0.5mm, the preload needs to be adjusted (monthly inspection)
The grease injection volume for hinged bearings should not exceed one-third of the cavity to prevent high-temperature grease overflow ‌
Iii. Brand Positioning and Application Suggestions
As a domestic mid-to-high-end brand (" Havalo ", the first echelon of domestic brands), HRB's construction machinery bearings:
Youdaoplaceholder0 applicable scenarios ‌ : heavy-duty equipment such as railway engineering vehicles, mining cranes, and port loaders ‌
Youdaoplaceholder0 Performance positioning ‌ : The precision and lifespan are superior to those of small and medium-sized brands, and the cost performance is higher than that of imported high-end products
Youdaoplaceholder0 limitation area ‌ : Extreme working conditions such as ultra-precision machine tool spindles and aero engines still rely on imported brands

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