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1. Modeling formula: (1) PIN = P1Xf (the number of starts and stops per hour is not greater than 20 times / hour)
(2) PIN = 1.2XP1Xf (the number of starts and stops per hour 21 ~ 60 times / hour)
(1) PIN ≤ PN
Modeling power must be less than or equal to the permitted power
Eq: PIN is the selected power, P1 is the actual power required, f is the use factor, PN is the permitted power.
Model Selection
1. Power Calculation Formula: (1)PIN=P1Xf(Starts per hour ≤20 times/hour)
(2)PIN=1.2XP1Xf(Starts per hour 21~60 times/hour)
(1)PIN≤PN
Rated power must be less than or equal to allowable power
Where: PIN is selection power, P1 is actual required power, f is service factor, PN is allowable power.
Service Factor f
Thermal Power Verification
1. Thermal Power Calculation: PGN=PGXf1×f2
PGN>P1(Natural Cooling)
PGN Where: f1 is ambient temperature coefficient, f2 is continuous operation coefficient, PG is heat dissipation capacity, P1 is actual required power, PGN is calculated heat dissipation capacity. 2. Ambient Temperature Coefficient f1 3. Continuous Operation Coefficient f2 Heat Dissipation Capacity PG(Natural Cooling) General Technical Specifications 1. Keys and keyways comply with GB1095-79 and GB1096-79 standards; keyway width tolerance: shaft N9, hub JS9. 2. Output/input shaft center holes are threaded with specifications as follows: D=11~13mm Thread M3 D>24~30mm Thread M10 >13~16mm Thread M5 >30~38mm Thread M12 >16~21mm Thread M6 >38~50mm Thread M16 >21~24mm Thread M8 >50~85mm Thread M20 3. In dimension drawings, input/output shafts can operate in speed-up transmission when speed and torque allow.
