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YUEQING LASTE MECHANICAL ENGINEERING CO., LTD.

乐清市乐特机械工程有限公司

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Description for selection

Generally, We choose the size of universal shaft according to transmission torque, beaning life and critical revolution speed. sometimes it is necessary to check the maximum revolution speed.

Check strength

Tc<Tn or Tc<Tf or Tc<Tp

Where:

Tc--calculated torque (N.m)

Tn--nominal torque (N.m)

Tf--fatigue torque under alternative load (N.m)

Tp--fatigue torque under pulsating load (N.m)

Determination of calculated torque Tc:

Tc= KT<Tn或Tk

Where:

Tc--Calculated torque (N.m)

T--Theory torque (N.m)

Pw--Driving power (KW)

n--Working revolution speed (r/min)

k--Operating status coefficient (see table)

Load condition	Driven machine	K
Light shock Load	Generators Centrifugal rate Carpenter machine tools Conveyors Paper mills	1.1-1.3
Medium shock Load	Compressors (multi-cylinder) Piston pumps (multi-cylinder) Light section rolling mills Continuous wire rolling mills Transport machine drive	1.3-1.8
Heavy shock Load	Marine machine drive Transport roller table Continuous tube mills Continuous roller table Medium section rolling mills Compressors (one-cylinder) Pumps (one-plunger) Mixers Presses Straightening machine Crane travel drives Ball mill	2-3
Very heavy shock Load	Crane travel auxiliary transmits Crusher Reversible working roller table Rolling up machine Scales breaker Blooming mills	3-5
Extreme heavy shock Load	Breast roller drives Plate shears	6-15

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