Tsubaki TGM Series Bedienungsanleitung

1/12

INSTALLATION MANUAL

SHOCK GUARD TGM（-C）Series

2/12

Safety Guide and Warranty

WARNING

“Mechanical type Safety and Control devices”

⚫Begin inspection and maintenance after verifying that no load or rotational force is being

applied to the equipment.

⚫Check the operation of the device periodically so that it can be sure to function properly

when overload occurs.

“Electrical type Safety and Control devices”

⚫When carrying out an operation test or making a periodic inspection, make sure to verify

that it functions properly as a protection device.

⚫Follow the instruction manual when carrying out megger testing because most electrical

devices have certain requirements for megger testing.

⚫Check the operation of the device periodically so that it can be sure to function properly

when overloaded occurs.

“Common”

⚫Comply with the 2-1-1 General Standard of “Ordinance on Labor Safety and Hygiene”.

⚫When performing maintenance or inspections:

1) Wear proper work clothes and protective equipment (safety devices, gloves, shoes, etc.).

To avoid an accident, make sure to perform maintenance and inspections in an

appropriate environment.

2) Make sure the power is switched off, and the machine has stopped completely before

carrying out maintenance and inspections. Take the necessary measures to ensure the

power is not turned back on.

3) Follow the instruction manual.

4) Wire according to the technical standards of Electrical Installation and company

regulations. Take note of the cautions in this manual which explain installation

direction, clearance and environmental conditions. Make sure to ground the device to

prevent electrical shock and to improve noise resistance.

⚫When using with lifting equipment, install a suitable protection device for safety purposes,

otherwise an accident resulting in death, serious injury or damage to the equipment may

occur due to a falling accident.

Death or serious injury may result from product misuse due to not

following the instructions.

3/12

CAUTION

“Mechanical type Safety and Control devices”

⚫The strength of the equipment should be designed to withstand the load or rotational force

when the device is activated due to overload.

⚫Wear damage may occur depending on the number and frequency of activations. Following

the manual, check the functions and operations periodically. If something is not functioning

properly, contact the distributor for repair.

“Electrical type Safety and Control devices”

⚫Consumable parts (tantalum electrolytic capacitors, relays, etc.) are built-in the products.

Using the manual, periodically check the functions and operation of the device. If it is not

functioning properly, contact the distributor for repair.

⚫Do not use the device in a corrosive gas environment. Sulphidizing gases (SO2, H2S) can

especially corrode the copper and copper alloy used on PCBs and parts, and cause a

malfunction.

“Common”

⚫Read the instruction manual carefully, and use the product properly. In case the instruction

manual is not available, request one from the distributor where you purchased the product,

or our sales office with the product name and model number.

⚫Deliver this instruction manual to the final customer who uses the TSUBAKIMOTO CHAIN

product.

Minor or moderate injury, as well as damage to the product may

result from product misuse due to not following the instructions.

4/12

Thank you for purchasing a Shock Guard TGM series. Make sure the unit delivered matches

your order and no shortages exist in the parts provided. Any such shortages or other delivery

errors must immediately be reported to your distributor. This manual should be considered

an essential part of the Shock Guard TGM series and remain with the coupling when

redistributed.

To ensure safety, read all instructions thoroughly before installing or working on the

equipment.

1. CONSTRUCTION

PART NO.

NAME OF PART

PART NO.

NAME OF PART

Case

Coil spring B

Cover

Thrust washer

Cam shaft

Gasket

Lever

Bearing A

Fulcrum pin

Bearing B

Roller pin

Cam follower

Spring seat

Seal

Adjusting screw

Spring pin

Cam actuation plate

Hexagonal bolt

LS detecting plate

Hexagonal set screw

Coil spring A

Hexagonal set screw

Table 1

5/12

2. INSTALLATION

２－１．Installation to the axis

A Bore diameter tolerance of h6 or h7 for installing the Shock Guard to the shaft is

recommended. Use a JIS 1301-1996（New JIS standards）parallel key. Allow some

clearance between the top of the key and keyway.

When installing the cam actuating plate to the shaft, tighten bolts in three places.（For

the key, 1 place; for the shaft, 2 places）

When mounting the Shock Guard to the end face of the shaft, depending on the

installation method, the cam actuating plate set screws cannot be used. In this case use

the tap holes on the mounting seat side.

Set screws for these tap holes are not included, so use bolts with a length that fits the

bore diameter. (Table 2) Take care to ensure that the head of the set screws do not come

out from the outer diameter of the camshaft.

If the head of the screws come out, they will interfere with the inner diameter and lateral

side of the mounting seats when the Shock Guard trips.

If during operation there is a chance vibration will cause the screws to loosen, apply

Loctite 242 or an equivalent for anti-loosening.

Model No.

Bore size

Set screw size

For the key, 1 place

For the shaft, 2 place

TGM3

TGM6

10~12

M4×8

M4×10

13~14

M4×6

M4×8

TGM20

14~16

M4×10

M4×12

17~20

M4×8

M4×10

TGM60

20~22

M5×16

M5×20

22~28

M5×12

M5×16

29~30

M5×12

TGM200

28~30

M6×25

M6×30

31~40

M6×20

M6×25

41~50

M6×16

M6×20

TGM400

TGM800

38~45

M8×25

M8×30

46~55

M8×20

M8×25

56~60

M8×16

M8×20

Table 2

6/12

２－２．Installation of drive member

By utilizing 3 mounting seats, tighten the bolts with the torque shown in Table 3 to

install the sprockets, pulleys, gears and couplings to the housing.(Fig.1)

Fig.1

２－３．Installation bolts

The screw-in length of the mounting seat installation bolts and their tightening torque

recommended values are listed on Table 3. As well, use JIS B1001 2 class and higher

class prepared holes for installation bolts.

Model No.

Bolt screw-in length

(mm)

Bolt tightening torque

N・m{kgf・m}

Prepared hole diameter for

installation bolt

(mm)

TGM3

TGM6

6～7

2.0～2.9{0.2～0.3}

4.5

TGM20

8～9

3.9～5.9{0.4～0.6}

5.5

TGM60

9～11

6.9～11{0.7～1.1}

6.6

TGM200

15～17

34～51{3.5～5.2}

11.0

TGM400

TGM800

18～25

59～89{6.0～9.1}

14.0

Table 3

7/12

3. INSTALLING THE COUPLING

Fig.2

３－１．Align the two sprockets within the tolerance given in Table.

Angular misalignment

Keep the same C dimension in Table 4 (distance between the side face of sprockets) for

the circumference, and install it within the allowable angular misalignment α = 0.5°.

(Fig. 3 and 4)

Model No.

Angular α(deg)

Dimension C (mm)

Parallel ε(mm)

TGM3-C

TGM-6C

TGM-20C

0.5

5.8

0.19

TGM-60C

0.5

7.4

0.25

TGM-200C

0.5

11.6

0.38

TGM-400C

TGM-800C

0.5

15.3

0.50

Table 4

α°

Fig.3

Fig.4

8/12

Parallel misalignment

Align with the straight edge at the bottom of coupling teeth.

Allowable parallel misalignment is within ε.

(Fig. 5)

３－２．Winding the roller chain and insert the joint link after completion of sprockets

alignment, wind roller chain, insert the joint link then fix with the clip. Space

shown in table 5 is necessary to insert the joint link.(Fig.6)

３－３．TG sprocket for TGM3, TGM6 and TGM20 are with hub (one side) sprocket. Pay

special attention to the direction when installing TG sprocket so that the hub side

is the seat side.(Fig.7)

(mm)

Model No.

Dimension H

TGM3-C

TGM-6C

TGM-20C

TGM-60C

TGM-200C

TGM-400C

TGM-800C

Table 5

Fig.5

Fig.6

Fig.7

9/12

4. TORQUE SETTING

By simply turning the adjusting screw with a hexagonal Allen wrench, precise

torque can be set.

①The minimum torque value is set for shipment. The top surface of the adjustable screw is

adjusted to the minimum torque（torque indicator 1）printed on the nameplate. This is the

base tightening quantity.

②Before setting the torque, apply Loctite 242 or an equivalent adhesive to the exposed

surface of the adjustable screw’s thread portion. After setting torque, it becomes

anti-loosing.

③From the “Tightening Amount-Torque Correlation Chart”, find the adjusting screw

tightening angle equivalent to the predetermined trip torque. Set at 60°toward the

determined tightening value, then install to the machine and conduct a trip torque. Each

product’s trip torque does not always correspond with the value listed in the “Tightening

Amount-Torque Correlation Chart”, so use these values only as a rough guide.(Table 6 and

Fig.8)

④Do not set torque lower than the minimum torque（torque indicator 1 on the nameplate）.

If it is necessary to use a torque level lower than the minimum, use a weak spring type.

⑤Do not turn the adjusting screw when the Shock Guard is in a tripped state.

⑥Torque setting before shipment is available.

Model No.

min.torque

N・m{kgf・m}

Amount of torque

variation per one(1)rotation

N・m{kgf・m}

Total number

of rotations

TGM3

1.5{0.15}

0.28{0.029}

TGM6

2.5{0.26}

0.48{0.049}

TGM20

6.4{0.65}

1.02{0.10}

TGM60

20{2.0}

4.90{0.5}

TGM200

68{6.9}

9.80{1.0}

TGM400

225{23}

20.6{2.1}

TGM800

451{46}

41.2{4.2}

Table 6

Set torque = min. torque + ( amount of torque

variation per one(1)rotation ×

total number of rotations of the

adjustable screw

10/12

Fig.8

5. OVERLOAD DETECTION

Using the limit switch, overload can be detected easily.

If the Shock Guard trips due to overload, the cam follower will disengage from the pocket

and the camshaft and main unit（case）will idle. At the same time, the LS detecting plate

slides in the axial direction.

The limit switch detects this movement, shuts the power off and sets off an alarm. Whether

the stopping side is on the camshaft side or the main unit case side, overload can be

detected. For every one trip, the LS detecting plate slides three times.

①Table 7 shows LS detecting plate movement and

force during trip. Choose a limit switch from chart

5 that meets the “movement until operation” and

its “necessary amount of force”.

②Fig.9 are limit switch installation examples.

③Connect the limit switch’s “b contact” parallel to

the start button’s contact.

④Fig.10 shows an example of a typical circuit.

TSUBAKIMOTO CHAIN recommends using

a built-in holding circuit.

Model No.

Amount of

movement

(mm)

Force when

moving

N{gf}

TGM3

TGM6

TGM20

3.9{400}

TGM60

3.9{400}

TGM200

5.4{550}

TGM400

TGM800

5.9{600}

Table 7

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