sizing Shock Guard

  • ・We will select the model that best suits your specifications.
  • - Select the series for which you want to display the selection results and the method for specifying the trip torque.
  • ・Enter the specifications and click the model number selection button.

STEP 1 Select a series

Please select the series for which you want to view the selection results.


* See here for the features of this series.

* Click here for Selection Guide for overload protection devices.

STEP 2 Enter the selection criteria

・Please use “.” for the decimal point and not “,” as the calculation error will occur.

Please select the trip torque specification method from the following three cases.

1. Selection when trip torque is known


Determine the limit value beyond which torque should not be applied based on the strength, load, and other conditions of the machine device,
Use this as the trip torque.


Trip Torque

 N・m

Rotational speed

 min-1

Shaft Hole Diameter

 mm


Basic form
Series Features Shock Guard model number 標準価格 / 納期 Allowable rotation speed judgment
TGB Standard model, economy
Wide Variation

TGE
Type 1
General-purpose type, wide torque range setting
Small diameter sprockets and wide pulleys can be installed.

TGE
Type 3
General-purpose type, wide torque range setting
A-type sprocket, pulley mountable.

TGX High precision, high rigidity
Ideal for high-precision positioning applications.

TGF
Type 2
Ideal for indexing applications

TGF
Type 3
Ideal for indexing applications

TGM Excellent sealed structure and environmental resistance.

TGZ

TGK
Type 2
Air clutch structure

TGH
Basic Type
Capable of handling high-speed rotation and high torque.

TGH
Pulley Type
Capable of handling high-speed rotation and high torque.

Coupling Type
Series Coupling types Shock Guard model number 標準価格 / 納期 Allowable rotation speed judgment
TGB Roller chain coupling

TGX Flange & Bolt

TGF
Type 5
ECHT-FLEX coupling
NEF series
Single type

TGF
Type 7
ECHT-FLEX coupling
NEF series
Spacer type

TGM Roller chain coupling

TGZ

TGK
Type 5
ECHT-FLEX coupling
NEF series
Single type

TGK
Type 7
ECHT-FLEX coupling
NEF series
Spacer type

TGH
Coupling (NER) type
ECHT-FLEX coupling
NER series
Spacer type

TGH
Coupling (AFT) type
ATRAFLEX Coupling

Within the same series, the smallest model number that satisfies the conditions is selected.



2. Selection when torque is calculated from transmission power and rotational speed


The rated torque is calculated from the rotational speed and rated output of the shaft to which Shock Guard is attached.
The trip torque is calculated by multiplying this value by the service factor shown in Table 1, which depends on the operating conditions.


Please enter your specifications.

Transmission Power

P

=

 kW

Service factor

S.F.

=

Rotational speed

n

=

 min-1

Shaft Hole Diameter

 

 

 mm

Table 1 Service Factors
S.F. Operating conditions
1.25 In the case of normal start/stop and intermittent movement
1.50 In case of severe shock load and forward/reverse operation

Trip torque T P = 60000×P×SF/(2π×n)

Basic form
Series Features Trip Torque
(N・m)
Shock Guard model number 標準価格 / 納期 Allowable rotation speed judgment
TGB Standard model, economy
Wide Variation

TGE
Type 1
General-purpose type, wide torque range setting
Small diameter sprockets and wide pulleys can be installed.

TGE
Type 3
General-purpose type, wide torque range setting
A-type sprocket, pulley mountable.

TGX High precision, high rigidity
Ideal for high-precision positioning applications.

TGF
Type 2
Ideal for indexing applications

TGF
Type 3
Ideal for indexing applications

TGM Excellent sealed structure and environmental resistance.

TGZ

TGK
Type 2
Air clutch structure

TGH
Basic Type
Capable of handling high-speed rotation and high torque.

TGH
Pulley Type
Capable of handling high-speed rotation and high torque.

Coupling Type
Series Coupling types Trip Torque
(N・m)
Shock Guard
Coupling model number
標準価格 / 納期 Allowable rotation speed judgment
TGB Roller chain coupling

TGX Flange & Bolt

TGF
Type 5
ECHT-FLEX coupling
NEF series
Single type

TGF
Type 7
ECHT-FLEX coupling
NEF series
Spacer type

TGM Roller chain coupling

TGZ

TGK
Type 5
ECHT-FLEX coupling
NEF series
Single type

TGK
Type 7
ECHT-FLEX coupling
NEF series
Spacer type

TGH
Coupling (NER) type
ECHT-FLEX coupling
NER series
Spacer type

TGH
Coupling (AFT) type
ATRAFLEX Coupling

Within the same series, the smallest model number that satisfies the conditions is selected.



3. Selection when the rotation speed is relatively high (approximately 500 min-1 or more) or when the load inertia is large


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


Please enter your specifications.
All inertia moment and torque values are measured on Shock Guard mounting shaft.
Please use the converted value.


Drive side moment of inertia

 kg・m2

Load moment of inertia

 kg・m2

Motor starting torque
(Shock Guard mounting shaft)

 N・m

Load Torque

 N・m

Service Factor

Maximum rotation speed

 min-1

Shaft Hole Diameter

 mm


K inertia ratio
Is Drive side moment of inertia kg・m2
IL Load moment of inertia kg・m2
It Shock Guard moment of inertia kg・m2
Ts Motor starting torque N・m
Tt Torque applied to Shock Guard at startup N・m
TL Load Torque N・m
TP Trip Torque N・m
S.F. Service Factor

Table 1 Service Factors
S.F. Operating conditions
1.25 In the case of normal start/stop and intermittent movement
1.50 In case of severe shock load and forward/reverse operation
Basic form
Series Features It t
Shock Guard
Moment of inertia
(kg・ )
K
inertia ratio
T t
Shock Guard
to
Startup
Acting Torque
(N・m)
T P
Trip
torque
(N・m)
Shock Guard model number 標準価格
/
納期
Tolerance
Rotational speed
judgement
TGB Standard model, economy
Wide Variation

TGE
Type 1
General-purpose type, wide torque range setting
Small diameter sprocket,
Wide pulleys can be installed.

TGE
Type 3
General-purpose type, wide torque range setting
A-type sprocket,
Pulley mounting possible

TGX High precision, high rigidity
For high-precision positioning applications
Optimal

TGF
Type 2
For indexing applications
Optimal

TGF
Type 3
For indexing applications
Optimal

TGM Sealed structure, environmental resistance
Excellent

TGZ

TGK
Type 2
Air clutch structure

TGH
Basic Type
High rotation and high torque
Available

TGH
Pulley Type
High rotation and high torque
Available

Coupling Type
Series Coupling
kinds
It t
Shock Guard
Moment of inertia
(kg・ )
K
inertia ratio
T t
Shock Guard
to
Startup
Acting Torque
(N・m)
T P
Trip
torque
(N・m)
Shock Guard
Coupling model number
標準価格
/
納期
Tolerance
Rotational speed
judgement
TGB Roller chain
Coupling

TGX Flange & Bolt

TGF
Type 5
ECHT-FLEX
Coupling
NEF series
Single type

TGF
Type 7
ECHT-FLEX
Coupling
NEF series
Spacer type

TGM Roller chain
Coupling

TGZ

TGK
Type 5
ECHT-FLEX
Coupling
NEF series
Single type

TGK
Type 7
ECHT-FLEX
Coupling
NEF series
Spacer type

TGH
Coupling
(NER) type
ECHT-FLEX
Coupling
NER series
Spacer type

TGH
Coupling
(AFT) type
ATRAFLEX
Coupling

Within the same series, the smallest model number that satisfies the conditions is selected.