After the shaft wear of the KAB67-3KW-38.2-46 reducer is repaired, what are the standards for vibration and noise levels?

After repairing the shaft wear, the vibration and noise levels of KAB67-3KW-38.2-46 reducer can refer to the following standards:

Vibration standards

National standard: According to GB10068-2008 "Measurement and Evaluation of Mechanical Vibration Velocity and Acceleration", the standard value of the vibration velocity of the reducer is 0.45mm/s, and the standard value of the vibration acceleration is 2.8m/s ².

Industry practice standard: The bearing vibration value of a rotating machine with a rated speed of 1500r/min should not exceed 0.085mm.

ISO standard: The ISO10816 standard is classified according to equipment power and installation method. For equipment with a power of 15-75kW, the upper limit of the good level of vibration velocity effective value (RMS) under rigid foundation is 4.5mm/s, and the allowable upper limit of the level is 7.1mm/s; The upper limit of the good level for the effective value (RMS) of vibration velocity under flexible foundation is 7.1mm/s, and the upper limit of the allowable level is 11.2mm/s.

Noise standards

General industrial standards: According to ISO10816 "Noise Limits for Gear Devices", the noise level of medium-sized industrial reducers (power 7.5-75kW) is generally 60-70 decibels during no-load operation and 70-80 decibels under full load. The measurement point is located 1 meter away from the surface of the device, and data is obtained using the A-weighting mode.

Specific standard: The noise level of the gearbox can also refer to DIN 45635 standard, which usually requires ≤ 75dB (A).