Sizing   Shock Guard

  • Select an appropriate model for your application.
  • Select a series to show the selection results and a method to specify the trip torque.
  • Enter the specifications and click the Select model button.

STEP1  Series selection

Select a series to show the selection results


Click here for the features of each series.

Click here for the selection guide for the overload protection devices.

STEP2  Entering the sizing conditions

Select a method to specify the trip torque from the following 3 cases

1. When you already know the trip torque


Determine the torque limit which should not be exceeded based on the strength, load, and other conditions of the machine/equipment and specify the value as the trip torque.


Trip torque

 N・m

Speed

 r/min

Shaft Bore Diameter

 mm


Basic model
Series Shock Guard model No. Standard Price  /  Delivery Show allowable speed
TGB

TGE
Type 1

TGE
Type 3

TGX

TGF
Type 2

TGF
Type 3

TGM

TGZ

TGK
Type 2

Coupling type
Series Shock Guard model No. Standard Price  /  Delivery Show allowable speed
TGB

TGX

TGF
Type 5

TGF
Type 7

TGM

TGZ

TGK
Type 5

TGK
Type 7

In the same series, the model with the minimum specifications that satisfy the conditions is selected.



2. When you determine the torque from the transmission power and rotation speed


Calculate the rated torque from the rotation speed of the shaft to which the Shock Guard will be mounted and the rated output, and multiply it by the service factor according to the usage conditions shown in Table 1. Specify the result as the trip torqu


Enter your specifications.

Power transmission

P

=

 kW

Service factor

S.F.

=

Speed

n

=

 r/min

Shaft Bore Diameter

 

 

 mm

Table 1  Service factor
S.F. Operating conditions
1.25 Normal start/stop or intermittent movement
1.50 Severe shock load or forward/reverse movement

Trip torque  TP = 60000×P×SF/(2π×n)

Basic model
Series Trip torque
(N・m)
Shock Guard model No. Standard Price  /  Delivery Show allowable speed
TGB

TGE
Type 1

TGE
Type 3

TGX

TGF
Type 2

TGF
Type 3

TGM

TGZ

TGK
Type 2

Coupling type
Series Trip torque
(N・m)
Shock Guard coupling model No. Standard Price  /  Delivery Show allowable speed
TGB

TGX

TGF
Type 5

TGF
Type 7

TGM

TGZ

TGK
Type 5

TGK
Type 7

In the same series, the model with the minimum specifications that satisfy the conditions is selected.



3. When the rotation speed to be used is relatively high (500 r/min or more) or the inertia of the load is large


K = (IL+It)/Is
Tt = K・Ts+TL/(1+K)
TP = S.F.×Tt


Enter your specifications.
For all values of the moments of inertia and torque, use values calculated based on the shaft to which the Shock Guard will be mounted.


Moment of inertia on the drive side

 kg・m2

Moment of inertia on the load side

 kg・m2

Starting torque of the motor
( Shock Guard mounting shaft )

 N・m

Load torque

 N・m

Service factor

Max. Rotation Speed

 r/min

Shaft Bore Diameter

 mm


K Inertia ratio
Is Moment of inertia on the drive side kg・m2
IL Moment of inertia on the load side kg・m2
It Moment of inertia of the Shock Guard kg・m2
Ts Starting torque of the motor N・m
Tt Torque applied to the Shock Guard at startup N・m
TL Load torque N・m
TP Trip torque N・m
S.F. Service factor

Table 1  Service factor
S.F. Operating conditions
1.25 Normal start/stop or intermittent movement
1.50 Severe shock load or forward/reverse movement
Basic model
Series It
Moment of inertia of the Shock Guard
(kg・m2)
K
Inertia ratio
Tt
Torque applied to the Shock Guard at startup
(N・m)
TP
Trip torque
(N・m)
Shock Guard model No. Standard Price
/
Delivery
Show allowable speed
TGB

TGE
Type 1

TGE
Type 3

TGX

TGF
Type 2

TGF
Type 3

TGM

TGZ

TGK
Type 2

Coupling type
Series It
Moment of inertia of the Shock Guard
(kg・m2)
K
Inertia ratio
Tt
Torque applied to the Shock Guard at startup
(N・m)
TP
Trip torque
(N・m)
Shock Guard coupling model No. Standard Price
/
Delivery
Show allowable speed
TGB

TGX

TGF
Type 5

TGF
Type 7

TGM

TGZ

TGK
Type 5

TGK
Type 7

In the same series, the model with the minimum specifications that satisfy the conditions is selected.