Shock Guard ​TGB Series

Product Photos
  • A versatile type with a wide range of products and applications
  • - Repeated operating torque accuracy is within ±10%.
  • -A wide range of sizes are available, and even for the same size, springs are color-coded so that different torque settings can be used.
  • - It will Auto reset by simply rotating the drive side.
  • -The arrangement of the balls and pockets is a unique combination that only fits together in one place.
  • - A non-contact TG sensor detects overload and can stop the motor or issue an alarm (optional).
  • -We also have a selection of sprockets and coupling types.
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-- Minimum number of teeth on available sprockets -- (Can be moved by dragging)

Minimum number of teeth on usable sprockets

・TGB series

Model number Minimum number of sprocket teeth
RS40 RS50 RS60 RS80 RS100 RS120 RS140 RS160
TGB08-L,M,H 14 12 13（10）
TGB12-L,M,H 16 13 13（11）
TGB16-L,M,H 18 15 14
TGB20-H 26 22 19 15 13 13（11）
TGB30-L,H 32 26 22 18 15 13
TGB50-L,M,H 45（43） 35 30 24 20 17
TGB70-H 60（58） 48（47） 40 32（31） 26 24（22）
TGB90-L,H 62 52 40 33 28 25 22
TGB110-L,H 74 62 48 39 33 29 26
TGB130-L,H 83 70 53 43 37 32 29

*The number of teeth in ( ) is not the standard A-type sprocket. If possible, please use a sprocket with a larger number of teeth.

Note: The transmission capacity of the sprocket is not taken into consideration.

Video content

Structure

TGB08～16

TGB08~16 structure

TGB20～130

TGB20-130 structure

*TGB70 and above have slightly different structures.

Operating principle

Please watch the animation to see the operating principle of the TGB series.

Examples of TGB08-16

TGB08-16 operating principle

During normal operation (engaged)

Torque is transmitted by multiple balls.

The balls are arranged unevenly so there is only one engagement position.

There is no backlash due to the tight meshing of the pressurized ball and pocket, which are held in place without any gaps.

Torque is transmitted from the center flange (pocket) to the ball, then to the hub (pocket) and then to the shaft (or vice versa).

When overloaded (tripped)

When the valve trips due to an overload, the balls come out of the pockets in the center flange and are separated from the plate and center flange.
It moves by sliding between them.

Examples of TGB20-50

TGB20-50 operating principle

During normal operation (engaged)

Torque is transmitted by multiple balls.

The balls are arranged unevenly so there is only one engagement position.

Torque is transmitted from the center flange (pocket) to the ball, then to the hub (pocket) and then to the shaft (or vice versa).

When overloaded (tripped)

When tripped due to overload, the balls come out of their pockets in the hub and roll between the plate and the hub.

All rotating parts during tripping are supported by bearings, so rotation is light and smooth.

*The operating principle of TGB70 to 130 is the same.

Specifications (standard model)

Set torque range N・m Repeated operating torque accuracy Backlash Reset method
0.3～7150 ±10% Small Automatic

Catalogs and Instruction Manuals

Model number display

*Single unit type

TGB 30 - H - TH30JD2 - N147
｜
series		 ｜
size		 ｜
｜
｜		 ｜
Shaft hole symbol		 ｜
Torque setting value
N･m
Spring strength
L: Weak spring
M: Medium spring
H: Strong spring

*Coupling type

TGB 50 - L C - TH35JD2 X CH45ED2 - N98
｜
series		 ｜
size		 ｜
｜
｜		 ｜
Coupling
type		 ｜
Shock Guard side
Shaft hole symbol		 ｜
Coupling side
Shaft hole symbol		 ｜
Torque setting value
N･m
Spring strength

*With sprocket

TGB 50 - H - 08025 - TH50JD2 - N294
｜
series		 ｜
size		 ｜
｜
｜		 ｜
Sprocket model number		 ｜
Shaft hole symbol		 ｜
Torque setting value
N･m
Spring strength
Shaft hole symbol details
Shaft hole diameter tolerance Shaft Hole Diameter Keyway tolerance Set screw position
T H 35 J D2
C H 45 E D2
T:ショックガード側
C:カップリング側
F:F7
G:G7
H:H7
J:JS7
P:P7
M:M7
N:N7
K:K7
R:R7		 Shaft hole diameter is
in 1mm increments		 J: New JIS Js9 (standard)
P: New JIS P9
F: Old JIS F7
E: Old JIS E9
[Click to enlarge]

Note) The position of the setscrew on Shock Guard side is the position seen from the adjustment nut side, and the position of the setscrew on the coupling side is the position seen from the hub end face.

■ Tsubaki model No. navigation

Selectable model number:

View product details

*To generate the correct model number, select items in order from left to right.

series size Spring strength type Sprocket Shaft Hole Diameter Shaft Hole Diameter
tolerance		 Keyway
tolerance		 Set screw position torque
Setting value
 TGB

Shock Guard side
0.3
～
1.5
　　N･m
Coupling side

Product model number list

*Click on the model number to display detailed information.

Set torque range
N･m		 Single unit Coupling Type
Shaft hole diameter range
mm		 Model number With sprocket
Model number		 Coupling side
Shaft hole diameter range mm		 Model number
0.3～1.4 6～8 TGB08-L --- 6～15 TGB08-LC
0.8～2.1 TGB08-M TGB08-MC
1.2～2.9 TGB08-H TGB08-HC
0.7～2.9 8～12 TGB12-L --- 8～20 TGB12-LC
2.0～4.9 TGB12-M TGB12-MC
3.0～5.8 TGB12-H TGB12-HC
1.5～4.9 9～16 TGB16-L --- 9～25 TGB16-LC
3.0～7.8 TGB16-M TGB16-MC
5.9～11 TGB16-H TGB16-HC
9.8～44 10～20 TGB20-H TGB20-H-04022
TGB20-H-04027 		14～42 TGB20-HC
20～54 14～30 TGB30-L TGB30-L-06019
TGB30-L-06024 		20～48 TGB30-LC
54～167 TGB30-H TGB30-H-06019
TGB30-H-06024 		TGB30-HC
69～147 24～50 TGB50-L TGB50-L-08020
TGB50-L-08025 		20～55 TGB50-LC
137～412 TGB50-M TGB50-M-08020
TGB50-M-08025 		TGB50-MC
196～539 TGB50-H TGB50-H-08020
TGB50-H-08025 		TGB50-HC
294～1080 34～70 TGB70-H TGB70-H-10022
TGB70-H-10026 		30～75 TGB70-HC
441～1320 44～90 TGB90-L --- 35～103 TGB90-LC
931～3140 TGB90-H TGB90-HC
686～1960 54～110 TGB110-L --- 40～113 TGB110-LC
1570～5100 TGB110-H TGB110-HC
1180～3040 62～130 TGB130-L --- 55～145 TGB130-LC
2650～7150 TGB130-H TGB130-HC

option

TG sensor

This is a proximity switch type overload detection sensor designed specifically for Shock Guard. It can detect an overload on Shock Guard (movement of the plate in the axial direction) and stop the motor or issue an alarm.

TG sensor
AC type DC type
Model number TGS8 TGS8DN
power supply
Voltage		 Rating AC24～240V -
Usable range AC20～264V(50/60Hz) DC10～30V
Current consumption 1.7mA or less (at AC200V) 16mA or less
Control output (switching capacity) 5～100mA Max 200mA
indicator light Operation display
Ambient temperature -25 to +70°C (but do not freeze)
Ambient humidity 35～95% RH
Output format - NPN
Operation form NC
(センサプレートを検知していない時の出力開閉状態を表します)
Insulation resistance 50MΩ or more (DC500V megger) between all live parts and case
mass Approximately 45g (2m cord length) Approximately 56g (2m cord length)
Residual voltage >> See characteristic data 2.0V or less (load current 200mA, cord length 2m)
Instruction Manuals TG sensor TGS8 TG sensor TGS8DN
×
-- Load residual voltage characteristics -- (You can move it by dragging it)

Load residual voltage characteristics

Load residual voltage characteristics

Dimensions

AC type TGS8

AC type

DC type TGS8DN

DC type

Sizing

We will select Shock Guard that best suits your usage conditions from the entire Tsubaki Shock Guard series.

Please click on the "sizing" tab at the top of this page.

For information on selecting and manufacturing drive members (sprockets, etc.), please refer to this link.

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Special specification products

Sprocket integrated type

Upon customer request, we can also accommodate sprocket-integrated types other than standard products. Please select the sprocket and contact us.

Sprocket integrated type

Adapter specifications (A)

This is convenient when using a small diameter sprocket or pulley. When using this product, please specify the specifications of the sprocket or pulley to be installed and contact us.

Adapter specifications (A)

Forward/reverse type

The trip torque setting can be changed by changing the direction of rotation of Shock Guard. Please contact us for details.

Forward/reverse type