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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 or Tf(Tp)

      

   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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