Article List
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Comparison of service life of hard tooth surface and soft tooth surface reducerThe service life difference between the hard tooth surface reducer and the soft tooth surface reducer is due to the essential difference between the tooth surface hardness, load-bearing capacity, and wear resistance/fatigue resistance. It is also affected by external factors such as working conditions and maintenance level. Essential difference: The hard tooth surface achieves higher load-bearing capacity and failure resistance through surface hardening process, which is the core reason for its longer life; life comparison: Under the same working conditions, the life of the hard tooth surface is 1.5-2 times that of the soft tooth surface, and the advantages are more significant under heavy/hard working conditions; key premise: The life advantage of the hard tooth surface depends on 'correct Selection (match load), standardized installation (guaranteed centering), high-quality lubrication (cleaning adaptation)', otherwise the life may be shortened due to bearing failure, tooth breakage and other problems; Selection Logic: Life expectancy requirement >10 years, complex working conditions → hard tooth surface; life expectancy requirement 5-8 years, simple working conditions → soft tooth surface, balance cost and performance.
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How to determine whether the alignment of the multi-stage reducer is goodTo determine whether the centering of the multi-stage reducer is the core of detecting the relative position deviation of the axis of the input shaft, intermediate shafts at each stage, and output shaft (including parallelism and coaxiality), as well as the neutrality between the shaft and the coupling (or motor shaft). Poor centering will lead to gear bias load, bearing overheating, and vibration abnormalities, which will shorten the life in the long run. The following are three aspects: 'Basic inspection (quick judgment)''Professional inspection (accurate quantization)''''Centering bad characteristics' provide ground-based judgment methods, covering on-site operation and professional tool application scenarios: 1. Basic inspection: No professional tools are required, quickly identify obvious bad centering bad is suitable for daily inspection or preliminary investigation. Through 'see, listen, touch, and test' to judge abnormalities, low operating threshold: 1. Observe the appearance and component status Gear meshing traces: Open the reducer observation hole (need to shut down and power off), and check the meshing contact spots of gears at all levels (can be applied to assist in observation): Good centering: Connect
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What factors will affect the tooth surface roughness of the CWO100-63-YIII reducer wormThe tooth surface roughness is the result of the coupling of 'machine tool-grinding wheel-workpiece-process-environment'. There is an interactive effect between various factors and coordinated optimization is required to achieve the target Ra stably (such as the accuracy of level 7 is about 0.4–0.8μm). Adaptation key points for CWO100-63-YIII: Use 'Trial Cut-DOE-Current Parameters' for closed loops when small and medium-sized specifications and small batches; set the upper/lower limit and trigger and then optimize the threshold after batch stability. Process interval reference: vs 40–60m/s; vw 100–150mm/min; ap 0.02–0.05mm/time; fine grinding margin 0.05–0.15mm (2–3 steps). Countermeasures for common defects: regular corrugation/vibration → improve machine tool rigidity and servo matching, optimize trimming and vw; fish scales/tear → improve sharpness
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How to improve the wear resistance of CWO140-25-I worm gear reducerTo improve the wear resistance of CWO140-25-I worm gear reducer, it is necessary to optimize comprehensively from multiple dimensions such as material, design, lubrication, installation and maintenance. The specific measures are as follows: 1. Materials and heat treatment strengthening worm materials are selected to use high-strength alloy steel (such as 40Cr, 20CrMnTi). After carburizing and quenching, the surface hardness must reach HRC58-62, and the core remains tough to withstand impact loads. The worm gear is preferred to use tin bronze (ZCuSn10Pb1) or aluminum bronze (ZCuAl10Fe3), and the hardness is controlled at HB80-120, which forms a 'hard-soft' pair with the worm to reduce adhesion wear. Heat treatment process worm high-frequency induction quenching or carburizing quenching ensures the depth of the quenching layer ≥0.8-1.2mm, and avoids early failure due to surface peeling. After casting, the worm gear needs to be aging treatment to eliminate internal stress and improve dimensional stability. 2. Design and manufacturing optimization
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NAD224-8-1 Does the installation of planetary deceleration require ambient temperature?NAD224-8-1 The installation of a planetary reducer has clear requirements for ambient temperature. The core is to control the ambient temperature to avoid lubrication failure, deformation of components or shortening of life due to temperature abnormalities. Combined with the structural characteristics of this model (NAD224 is a medium-to-large planetary reducer with a transmission ratio of 8:1, and the adapter motor power is usually large) (compact planetary wheel train and high bearing torque), the specific ambient temperature requirements and precautions are as follows: 1. Core installation ambient temperature requirements (official general standards, required by the manufacturer's manual). The gears, bearings, seals and lubricants of the planetary reducer are temperature sensitive. The installation ambient temperature of NAD224-8-1 must meet the following ranges, and exceeding them will directly affect the operating reliability: Normal working ambient temperature: -10℃ ~ +40℃ (this is the most core installation temperature range, suitable for most industrial scenarios, such as workshops, production lines, etc.); short-term tolerance limit
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NAF355-4.5-1 How high temperature can the planetary gear reducer withstand?The high temperature tolerance of NAF355-4.5-1 planetary gear reducer According to the general design standards and material characteristics of industrial reducers, the maximum allowable working temperature of NAF355-4.5-1 planetary gear reducer is usually 80℃ (shell temperature), but it needs to be comprehensively evaluated in combination with specific working conditions and lubrication conditions. Key influencing factors 1. When the lubrication system uses synthetic lubricating oil (such as ISO VG 320), the upper oil temperature limit can reach 90℃. If it exceeds this temperature, the machine must be shut down for inspection. In high temperature environments (>45℃), the rated power needs to be reduced by 10%-15% to avoid temperature rise exceeding the standard. 2. Materials and heat dissipation design. The high temperature resistance of hard toothed gears and bearings depends on the material (such as 20CrMnTi carburized steel). It can withstand 100℃ in the short term, but it is recommended to control it below 80℃ in the long term. If equipped with forced heat dissipation (such as fan or water cooling), it can increase the high temperature and be suitable for
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Let me introduce the characteristics of the bevel gear of the B3SH04 reducer in detailThe bevel gear (bevel gear) design of the B3SH04 reducer is designed for medium-power industrial applications. Its core features are as follows: 1. Materials and heat treatment processHigh-strength alloy steel uses 20Cr2Ni4A carburized steel, with a depth of 1.2-1.6mm, a tooth surface hardness of HRC58-62, a core hardness HRC35-40, and a 30% increase in bending fatigue strengthSurface strengthening technologyThe tooth surface is strengthened by laser impact, and residual pressure Stress reaches -400MPa, fatigue life is extended by 2-3 times 2. Structural design optimization 1. The tooth shape parameter spiral angle error ≤0.1°, tooth direction deviation ≤0.005mm/m, meshing contact area ≥90%, reducing bearing wear caused by axial force 2. The box seal adopts a combination of maze seal + fluoroelastic oil seal, dustproof level IP66, adapts to dust concentration 1000mg/m³ environment 3. Working conditions adaptability heavy load capacity
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How to choose the suitable B3SH06-12.5-A reducer bevel gearThe bevel gears of the B3SH06-12.5-A reducer need to comprehensively consider material characteristics, transmission parameters and working conditions. The following are the key points: 1. Materials and heat treatment requirements. The alloy steel material is recommended to use 20Cr2Ni4A carburized steel. The hardness of the tooth surface must reach HRC58-62 and the hardness of the core part HRC35-40 to ensure the bending fatigue strength is increased by 30%. Surface treatment process Laser impact strengthening treatment can form a -400MPa residual compressive stress layer, with a fatigue life of 2-3 times longer. It is suitable for high impact load scenarios. 2. Transmission parameter matching 1. Speed ratio and torque adaptation B3SH series speed ratio range is 5-400, and the transmission ratio needs to be calculated based on the motor output speed and load requirements. For example, when the 1500r/min motor drives a 30r/min load, the model with a speed ratio of 50 should be selected2. Multi-stage transmission distributionHigh reduction ratio requirements (such as i>10
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How to determine whether the MBY1100-4.5 hard-tooth surface gear reducer is in abnormal temperature riseDetermine whether the MBY1100-4.5 hard-tooth surface gear reducer is in abnormal temperature rise, and it is necessary to combine temperature monitoring, operating status, and environmental factors. Conduct a comprehensive evaluation, and the specific methods are as follows: 1. Compare temperature monitoring and standard temperature rise calculation Normal temperature rise range: The allowable temperature rise of the reducer is ambient temperature +40℃~50℃ (such as ambient temperature 30℃, the shell temperature should be ≤80℃) abnormal judgment: The actual temperature rise exceeds 50℃ (such as ambient temperature >80℃ at 30℃), or the oil temperature >90℃ (requires shutdown inspection) Key temperature measurement points Housing surface: Infrared thermometer measures the bearing end cover or the middle of the shell, the temperature difference >10℃ indicates local overheating Lubricant temperature: oil temperature sensor monitors real-time, exceeding 90℃, lubricating system needs to be checked immediately 2. Operation status correlation analysis Load and temperature rise No load temperature rise: Normal should be ≤30℃ (environment +30℃), if no load
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What are the differences in efficiency between cylindrical gear reducers and planetary gear reducersThe difference in efficiency between cylindrical gear reducers and planetary gear reducers is mainly reflected in the transmission structure, power loss, and application scenarios. Three aspects, specific comparisons are as follows: 1. Transmission efficiency comparison cylindrical gear reducer efficiency range: Single-stage transmission efficiency can reach 98%-99% (straight-tooth cylindrical gears are minimal due to line contact friction), multi-stage transmission efficiency is gradually reduced (such as double-stage efficiency is about 94%-96%) Source of loss: mainly due to gear meshing friction and bearing resistance, helical gear efficiency is slightly lower than that of spur gears (97%-98%) Planetary gear reducer efficiency range: usually 85%-95%, due to the multi-gear meshing and diverting power, energy loss is large. Source of loss: complex meshing between planetary wheels and sun gears/rings, bearing friction and lubrication resistance 2. Reasons for efficiency differences Structural complexity Cylindrical gear reducer is simple in structure, single-stage transmission path