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195-7096
YASSIAN or Your's
Protective Plate195-7096 Earth Moving Machinery Spare Parts
Which gears or shafts are commonly made of 50Mn steel
50Mn steel, with its high strength, excellent wear resistance and good hardenability, is widely used in the manufacturing of the following gear and shaft parts:
⚙️ I. Core gear parts
Heavy-duty gear shaft
Drive gears for crushers in mining machinery
Transmission gear rings for construction machinery (such as bulldozers)
High-frequency quenched precision gears
Automobile transmission gears (with high-frequency quenching to enhance surface hardness)
2. Core shaft parts
High-load drive shaft
Gear shaft (subjected to alternating torque and wear)
Automobile engine crankshaft (requires high-frequency quenching strengthening)
Train axles (meeting dynamic load and wear resistance requirements)
Support type shaft fittings
Mandrels with a cross-sectional diameter of no more than 80mm (such as machine tool spindles, rolling mill roller shafts)
Heavy machinery bearing support shaft
️ III. Key points for engineering application
Size limitations
The effective hardening depth limit of quenching is applicable to parts with a cross-section of ≤80mm. For larger cross-sections, alloy steel (such as 50Mn2) should be considered.
Process compatibility
The surface strengthening of gears should adopt the high-frequency quenching process.
For shaft parts, quenching and tempering treatment (quenching at 830℃ + tempering at 600℃) is preferred.
Defect avoidance
Welding requires preheating at 200-300℃ to avoid cold cracks. Rapid cooling after tempering is carried out to suppress brittleness.
Summary : 50Mn steel has achieved high cost-performance application in wear-resistant and load-bearing components such as gear shafts, crankshafts, and mandshafts through optimized heat treatment processes, but it is necessary to strictly adhere to cross-sectional dimensions and process specifications.
Protective Plate195-7096 Earth Moving Machinery Spare Parts
Which gears or shafts are commonly made of 50Mn steel
50Mn steel, with its high strength, excellent wear resistance and good hardenability, is widely used in the manufacturing of the following gear and shaft parts:
⚙️ I. Core gear parts
Heavy-duty gear shaft
Drive gears for crushers in mining machinery
Transmission gear rings for construction machinery (such as bulldozers)
High-frequency quenched precision gears
Automobile transmission gears (with high-frequency quenching to enhance surface hardness)
2. Core shaft parts
High-load drive shaft
Gear shaft (subjected to alternating torque and wear)
Automobile engine crankshaft (requires high-frequency quenching strengthening)
Train axles (meeting dynamic load and wear resistance requirements)
Support type shaft fittings
Mandrels with a cross-sectional diameter of no more than 80mm (such as machine tool spindles, rolling mill roller shafts)
Heavy machinery bearing support shaft
️ III. Key points for engineering application
Size limitations
The effective hardening depth limit of quenching is applicable to parts with a cross-section of ≤80mm. For larger cross-sections, alloy steel (such as 50Mn2) should be considered.
Process compatibility
The surface strengthening of gears should adopt the high-frequency quenching process.
For shaft parts, quenching and tempering treatment (quenching at 830℃ + tempering at 600℃) is preferred.
Defect avoidance
Welding requires preheating at 200-300℃ to avoid cold cracks. Rapid cooling after tempering is carried out to suppress brittleness.
Summary : 50Mn steel has achieved high cost-performance application in wear-resistant and load-bearing components such as gear shafts, crankshafts, and mandshafts through optimized heat treatment processes, but it is necessary to strictly adhere to cross-sectional dimensions and process specifications.
