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Notice regarding changes to model numbers for Mechanical Overload Protectors Products Information

Model numbers for Torque Limiter, Shock Guard, and Torque Keeper will change from April 2, 2018.

To meet customer demand we will expand the number of possible combinations to one million with new model numbers.

Expanded service

We expanded the available range of finished keyways.
Customers can incorporate these products without any disassembly or assembly.

Bore tolerance  Max. 9 types 

You can select from a wide variety of bore tolerances.

[Tolerances available]
F7, G7, H7, JS7, P7, M7, N7, K7, R7

Shaft bore diameter  1mm units 

Shaft bore diameters are in 1mm units.

Keyway tolerance  Max. 4 types 

[Tolerances available]
New JIS Js9, New JIS P9, Old JIS E9, Old JIS F7

Set screw positioning  Max. 9 types 

Can be locked at any desired position.

  • D0 Set screw positioning fig.
  • D1 Set screw positioning fig.
  • D2 Set screw positioning fig.
  • D3 Set screw positioning fig.
  • D4 Set screw positioning fig.
  • D5 Set screw positioning fig.
  • D6 Set screw positioning fig.
  • D7 Set screw positioning fig.
  • D8 Set screw positioning fig.

Model number changes

Torque settings will be shown in SI units instead of gravitational units
When your product is delivered with torque settings displayed, the torque will now be shown in SI units (N·m) instead of gravitational units (kgf·m) as with the previous models.

Searching for replacements for previous models

We are providing an on-line service that will give you the new (replacement) model when you enter the previous model. *After changing model numbers, we will update the link to this service on the product pages of each series.

Example of model numbers

Example of new model numbers (before and after change)

Example of Torque Limiter TL Series Model number changes

TL Series Details of model number changes

No-coupling type

Before change

TL250 - 2 - 04022 - 20 J - 5
(1) (2) (3)
  • (1) Shaft bore diameter mm
  • (2) Bore tolerance: H7, Keyway tolerance: New JIS Js9 (Set screws at 1 location)
  • (3) Set torque value kgf·m

After change

TL 250 - 2 - 04022 - T H 20 J D1 - N49
Series Size Number of disc springs Sprocket model number Torque Limiter side Shaft bore tolerance Shaft bore diameter Keyway tolerance Set screw positioning Set torque value

Size

  • 200
  • 250
  • 350
  • 500
  • 700
  • 10
  • 14
  • 20

Number of disc springs

  • [TL200 to TL700]
    1L, 1, 2
  • [TL10]
    16, 24
  • [TL14]
    10, 15
  • [TL20]
    6, 12

Shaft bore tolerance

  • F: F7
  • G: G7
  • H: H7
  • J: JS7
  • P: P7
  • M: M7
  • N: N7
  • K: K7
  • R: R7

Shaft bore diameter

  • 1mm units

Keyway tolerance

  • J: New JIS Js9
  • P: New JIS P9
  • E: Old JIS E9
  • F: Old JIS F7

Set screw positioning (Position from adjusting nut side)

  • D0 Set screw positioning fig.
  • D1 (Standard) Set screw positioning fig.
  • D2 Set screw positioning fig.
  • D3 Set screw positioning fig.
  • D4 Set screw positioning fig.
  • D5 Set screw positioning fig.
  • D6 Set screw positioning fig.
  • D7 Set screw positioning fig.
  • D8 Set screw positioning fig.

Set torque value

  • The torque setting is shown in N·m units.
  • *Shown to one decimal place when the torque setting is less than 10N·m.
  • We can provide only D0 for TL200, and D1, D3, D4 for TL250 to 700.
  • Refer to the Tsubaki Overload Protector catalog for available sprocket sizes.
  • The code T indicating Torque Limiter side will be shown for no-coupling type as well after the change.

Coupling Type

Before change

TL250 - 2C - T 18 J X C 30 J - 5
(1) (2) (3) (1) (2) (3) (4)
  • (1) T: Torque Limiter side, C: Coupling side
  • (2) Shaft bore diameter mm
  • (3) Bore tolerance: H7, Keyway tolerance: New JIS Js9 (Set screws at 1 location)
  • (4) Set torque value 5kgf·m

After change

TL 250 - 2 C - T H18JD1 X C H30JD1 - N49
Series Size Number of disc springs Type Torque Limiter side Same notation as no-coupling type Coupling side Same notation as no-coupling type Set torque value

Size

  • 200
  • 250
  • 350
  • 500
  • 700
  • 10
  • 14
  • 20

Number of disc springs

  • [TL200 to TL700]
    1L, 1, 2
  • [TL10]
    16, 24
  • [TL14]
    10, 15
  • [TL20]
    6, 12

Shaft bore tolerance

  • F: F7
  • G: G7
  • H: H7
  • J: JS7
  • P: P7
  • M: M7
  • N: N7
  • K: K7
  • R: R7

Shaft bore diameter

  • 1mm units

Keyway tolerance

  • J: New JIS Js9
  • P: New JIS P9
  • E: Old JIS E9
  • F: Old JIS F7

Set screw positioning *

  • D0 Set screw positioning fig.
  • D1 (Standard) Set screw positioning fig.
  • D2 Set screw positioning fig.
  • D3 Set screw positioning fig.
  • D4 Set screw positioning fig.
  • D5 Set screw positioning fig.
  • D6 Set screw positioning fig.
  • D7 Set screw positioning fig.
  • D8 Set screw positioning fig.

Set torque value

  • The torque setting is shown in N·m units.
  • *Shown to one decimal place when the torque setting is less than 10N·m.
  • Note: The set screw position of the Torque Limiter side is as seen from the adjusting nut side, and the set screw position of the coupling side is as seen from the hub side.

Example of Shock Guard TGB Series Model number changes

TGB Series Details of model number changes

No-coupling type

Before change

TGB30 - H - 30 J - 15
(1) (2) (3)
  • (1) Shaft bore diameter mm
  • (2) Bore tolerance: H7, Keyway tolerance: New JIS Js9 (Set screws at 2 locations at 90º)
  • (3) Set torque value kgf·m

After change

TGB 30 - H - T H 30 J D2 - N147
Series Size Spring strength Shock Guard side Shaft bore tolerance Shaft bore diameter Keyway tolerance Set screw positioning Set torque value

Size

  • 08
  • 12
  • 16
  • 20
  • 30
  • 50
  • 70
  • 90
  • 110
  • 130

Spring strength

  • L: Weak
  • M: Medium
  • H: Strong
  • The spring type differs depending on size.

Shaft bore tolerance

  • F: F7
  • G: G7
  • H: H7
  • J: JS7
  • P: P7
  • M: M7
  • N: N7
  • K: K7
  • R: R7
  • *TGB08 to 16: Grade 8

Shaft bore diameter

  • 1mm units

Keyway tolerance

  • J: New JIS Js9
  • P: New JIS P9
  • F: Old JIS F7
  • E: Old JIS E9

Set screw positioning (Position from adjusting nut side)

  • D0 Set screw positioning fig.
  • D1 Set screw positioning fig.
  • D2 (Standard) Set screw positioning fig.
  • D3 Set screw positioning fig.
  • D4 Set screw positioning fig.
  • D5 Set screw positioning fig.
  • D6 Set screw positioning fig.
  • D7 Set screw positioning fig.
  • D8 Set screw positioning fig.

Set torque value

  • The torque setting is shown in N·m units.
  • *Shown to one decimal place when the torque setting is less than 10N·m.
  • We can provide only D2 for TGB08 to TGB16
  • The code T indicating Shock Guard side will be shown for no-coupling type as well after the change.

Coupling Type

Before change

TGB50 - LC - T 35 J X C 45 E - 10
(1) (2) (3) (1) (2) (3) (4)
  • (1) T: Shock Guard side, C: Coupling side
  • (2) Shaft bore diameter mm
  • (3) [Shock Guard side] Bore tolerance: H7, Keyway tolerance: New JIS Js9 (Set screws at 2 locations at 90º), [Coupling side] Bore tolerance: H7, Keyway tolerance: Old JIS E9 (Set screws at 2 locations at 90º)
  • (4) Set torque value kgf·m

After change

TGB 50 - L C - T H35JD2 X C H45ED2 - N98
Series Size Spring strength Type Shock Guard side Same notation as no-coupling type Coupling side Same notation as no-coupling type Set torque value

Size

  • 08
  • 12
  • 16
  • 20
  • 30
  • 50
  • 70
  • * 90
  • * 110
  • * 130

Spring strength

  • L: Weak
  • M: Medium
  • H: Strong
  • *The spring type differs depending on size.

Shaft bore tolerance

  • F: F7
  • G: G7
  • H: H7
  • J: JS7
  • P: P7
  • M: M7
  • N: N7
  • K: K7
  • R: R7
  • *The shaft bore tolerances are all Grade 7.

Shaft bore diameter

  • 1mm units

Keyway tolerance

  • J: New JIS Js9
  • P: New JIS P9
  • F: Old JIS F7
  • E: Old JIS E9

Set screw positioning *

  • D0 Set screw positioning fig.
  • D1 Set screw positioning fig.
  • D2 (Standard) Set screw positioning fig.
  • D3 Set screw positioning fig.
  • D4 Set screw positioning fig.
  • D5 Set screw positioning fig.
  • D6 Set screw positioning fig.
  • D7 Set screw positioning fig.
  • D8 Set screw positioning fig.

Set torque value

  • The torque setting is shown in N·m units.
  • *Shown to one decimal place when the torque setting is less than 10N·m.
  • Note: The set screw position of the Shock Guard side is as seen from the adjusting nut side, and the set screw position of th* coupling side is as seen from the hub side.

Example of Shock Guard TGX Series Model number changes

TGX Series Details of model number changes

No-coupling type

Before change

TGX35 - H - 30 J - 15
(1) (2) (3)
  • (1) Shaft bore diameter mm
  • (2) Bore tolerance: H7, Keyway tolerance: New JIS Js9 (Set screws at 2 locations at 90º)
  • (3) Set torque value kgf·m

After change

TGX 35 - H - T H 30 J D2 - N147
Series Size Spring strength Shock Guard side Shaft bore tolerance Shaft bore diameter Keyway tolerance Set screw positioning Set torque value

Size

  • 10
  • 20
  • 35
  • 50
  • 70

Spring strength

  • L: Weak
  • M: Medium
  • H: Strong

Shaft bore tolerance

  • F: F7
  • G: G7
  • H: H7
  • J: JS7
  • P: P7
  • M: M7
  • N: N7
  • K: K7
  • R: R7

Shaft bore diameter

  • 1mm units

Keyway tolerance

  • J: New JIS Js9
  • P: New JIS P9
  • F: Old JIS F7
  • E: Old JIS E9

Set screw positioning (Position from adjusting nut side)

  • D0 Set screw positioning fig.
  • D1 Set screw positioning fig.
  • D2 (Standard) Set screw positioning fig.
  • D3 Set screw positioning fig.
  • D4 Set screw positioning fig.
  • D5 Set screw positioning fig.
  • D6 Set screw positioning fig.
  • D7 Set screw positioning fig.
  • D8 Set screw positioning fig.

Set torque value

  • The torque setting is shown in N·m units.
  • *Shown to one decimal place when the torque setting is less than 10N·m.
  • The code T indicating Shock Guard side will be shown for no-coupling type as well after the change.

Coupling Type

Before change

TGX50 - LC - T 35 J X C 45 E - 10
(1) (2) (3) (1) (2) (3) (4)
  • (1) T: Shock Guard side, C: Coupling side
  • (2) Shaft bore diameter mm
  • (3) [Shock Guard side] Bore tolerance: H7, Keyway tolerance: New JIS Js9 (Set screws at 2 locations at 90º), [Coupling side] Bore tolerance: H7, Keyway tolerance: Old JIS E9 (Set screws at 2 locations at 90º)
  • (4) Set torque value kgf·m

After change

TGX 50 - L C - T H35JD2 X C H45ED2 - N98
Series Size Spring strength Type Shock Guard side Same notation as no-coupling type Coupling side Same notation as no-coupling type Set torque value

Size

  • 10
  • 20
  • 35
  • 50
  • 70

Spring strength

  • L: Weak
  • M: Medium
  • H: Strong

Shaft bore tolerance

  • F: F7
  • G: G7
  • H: H7
  • J: JS7
  • P: P7
  • M: M7
  • N: N7
  • K: K7
  • R: R7

Shaft bore diameter

  • 1mm units

Keyway tolerance

  • J: New JIS Js9
  • P: New JIS P9
  • F: Old JIS F7
  • E: Old JIS E9

Set screw positioning *

  • D0 Set screw positioning fig.
  • D1 Set screw positioning fig.
  • D2 (Standard) Set screw positioning fig.
  • D3 Set screw positioning fig.
  • D4 Set screw positioning fig.
  • D5 Set screw positioning fig.
  • D6 Set screw positioning fig.
  • D7 Set screw positioning fig.
  • D8 Set screw positioning fig.

Set torque value

  • The torque setting is shown in N·m units.
  • *Shown to one decimal place when the torque setting is less than 10N·m.
  • Note: The set screw position of the Shock Guard side is as seen from the adjusting nut side, and the set screw position of the coupling side is as seen from the hub side.

Example of Shock Guard TGZ Series Model number changes

TGZ Series Details of model number changes

No-coupling type

Before change

TGZ40 - L - 30 J - 6
(1) (2) (3)
  • (1) Shaft bore diameter mm
  • (2) Bore tolerance: H7, Keyway tolerance: New JIS Js9 (Set screws at 2 locations at 90º)
  • (3) Set torque value kgf·m

After change

TGZ 40 - L - T H 30 J D1 - N59
Series Size Spring strength Shock Guard side Shaft bore tolerance Shaft bore diameter Keyway tolerance Set screw positioning Set torque value

Size

  • 20
  • 30
  • 40
  • 50

Spring strength

  • L: Weak
  • M: Medium
  • H: Strong

Shaft bore tolerance

  • F: F7
  • G: G7
  • H: H7
  • J: JS7
  • P: P7
  • M: M7
  • N: N7
  • K: K7
  • R: R7

Shaft bore diameter

  • 1mm units

Keyway tolerance

  • J: New JIS Js9
  • P: New JIS P9
  • F: Old JIS F7
  • E: Old JIS E9

Set screw positioning (Position from adjusting nut side)

  • D1 Set screw positioning fig.

Set torque value

  • The torque setting is shown in N·m units.
  • *Shown to one decimal place when the torque setting is less than 10N·m.
  • The code T indicating Shock Guard side will be shown for no-coupling type as well after the change.

Coupling Type

Before change

TGZ30 - LC - T 25 J X C 35 E - 1.8
(1) (2) (3) (1) (2) (3) (4)
  • (1) T: Shock Guard side, C: Coupling side
  • (2) Shaft bore diameter mm
  • (3) [Shock Guard side] Bore tolerance: H7, Keyway tolerance: New JIS Js9 (Set screws at 1 location on the keyway), [Coupling side] Bore tolerance: H7, Keyway tolerance: Old JIS E9 (Set screws at 2 locations at 90º)
  • (4) Set torque value kgf·m

After change

TGZ 30 - L C - T H25JD1 X C H35E D5 - N18
Series Size Spring strength Type Shock Guard side Same notation as no-coupling type Coupling side Same notation as no-coupling type Set screw positioning 注) Set torque value

Size

  • 20
  • 30
  • 40
  • 50

Spring strength

  • L: Weak
  • M: Medium
  • H: Strong

Shaft bore tolerance

  • F: F7
  • G: G7
  • H: H7
  • J: JS7
  • P: P7
  • M: M7
  • N: N7
  • K: K7
  • R: R7

Shaft bore diameter

  • 1mm units

Keyway tolerance

  • J: New JIS Js9
  • P: New JIS P9
  • F: Old JIS F7
  • E: Old JIS E9

Set screw positioning (Coupling side) *

  • D0 Set screw positioning fig.
  • D1 Set screw positioning fig.
  • D2 Set screw positioning fig.
  • D3 Set screw positioning fig.
  • D4 Set screw positioning fig.
  • D5 (Standard) Set screw positioning fig.
  • D6 Set screw positioning fig.
  • D7 Set screw positioning fig.
  • D8 Set screw positioning fig.

Set torque value

  • The torque setting is shown in N·m units.
  • *Shown to one decimal place when the torque setting is less than 10N·m.
  • Note: The set screw position of the Shock Guard side is as seen from the adjusting nut side, and the set screw position of the coupling side is as seen from the hub side.

Example of Shock Guard TGM Series Model number changes

TGM Series Details of model number changes

No-coupling type

Before change

TGM60 - D30 - WS - 2.5
(1) (2) (3)
  • (1) Shaft bore diameter mm, Bore tolerance: H7, Keyway tolerance: New JIS Js9 (Set screws at 3 location)
  • (2) Spring type: WS = Weak spring
  • (3) Set torque value kgf·m

After change

TGM 60 - T H 30 J DY - WS - N25
Series Size Shock Guard side Shaft bore tolerance Shaft bore diameter Keyway tolerance Set screw positioning Spring type Set torque value

Size

  • 3
  • 6
  • 20
  • 60
  • 200
  • 400
  • 800

Shaft bore tolerance

  • F: F7
  • G: G7
  • H: H7
  • J: JS7
  • P: P7
  • M: M7
  • N: N7
  • K: K7
  • R: R7

Shaft bore diameter

  • 1mm units

Keyway tolerance

  • J: New JIS Js9
  • P: New JIS P9
  • F: Old JIS F7
  • E: Old JIS E9

Set screw positioning (Position from LS Detecting Plate)

  • DY Set screw positioning fig.

Spring type

  • No: Standard spring
  • SS: Enhanced spring (Except TGM6, TGM800)
  • WS: Weak spring (Except TGM3, TGM400)

Set torque value

  • The torque setting is shown in N·m units.
  • *Shown to one decimal place when the torque setting is less than 10N·m.
  • The code T indicating Shock Guard side will be shown for no-coupling type as well after the change.

Coupling Type

Before change

TGM60C - D20 X C 30 E - WS - 10
(1) (2) (3) (4) (5) (6)
  • (1) Shock Guard side, Shaft bore diameter mm, Bore tolerance: H7, Keyway tolerance: New JIS Js9 (Set screws at 3 locations)
  • (2) C: Coupling side
  • (3) Shaft bore diameter mm
  • (4) Shaft bore tolerance: H7 Keyway tolerance: Old JIS E9 (Set screws at 2 locations at 90º)
  • (5) Spring type: WS = Weak spring
  • (6) Set torque value kgf·m

After change

TGM 60 C - T H20JDY X C H30E D2 - WS - N18
Series Size Type Shock Guard side Same notation as no-coupling type Coupling side Same notation as no-coupling type Set screw positioning * Spring type Set torque value

Size

  • 3
  • 6
  • 20
  • 60
  • 200
  • 400
  • 800

Shaft bore tolerance

  • F: F7
  • G: G7
  • H: H7
  • J: JS7
  • P: P7
  • M: M7
  • N: N7
  • K: K7
  • R: R7

Shaft bore diameter

  • 1mm units

Keyway tolerance

  • J: New JIS Js9
  • P: New JIS P9
  • F: Old JIS F7
  • E: Old JIS E9

Set screw position of the coupling side *

  • D0 Set screw positioning fig.
  • D1 Set screw positioning fig.
  • D2 (Standard) Set screw positioning fig.
  • D3 Set screw positioning fig.
  • D4 Set screw positioning fig.
  • D5 Set screw positioning fig.
  • D6 Set screw positioning fig.
  • D7 Set screw positioning fig.
  • D8 Set screw positioning fig.

Spring type

  • No: Standard spring
  • SS: Enhanced spring
    (Except TGM6, TGM800)
  • WS: Weak spring
    (Except TGM3, TGM400)

Set torque value

  • The torque setting is shown in N·m units.
  • *Shown to one decimal place when the torque setting is less than 10N·m.
  • Note: The set screw position of the Shock Guard side is as seen from the LS detecting plate side, and the set screw position of the coupling side is as seen from the hub side.

Torque Keeper TFK Series Model number changes

TFK Series Details of model number changes

No-coupling type

Before change

TFK35 - 1 - 25 J - 2.5
(1) (2) (3)
  • (1) Shaft bore diameter mm
  • (2) Bore tolerance: H7, Keyway tolerance: New JIS Js9 (Set screws at 1 location on the keyway)
  • (3) Set torque value kgf·m

After change

TFK 35 - 1 - T H 25 J D1 - N25
Series Size Number of disc springs Torque Keeper side Shaft bore tolerance Shaft bore diameter Keyway tolerance Set screw positioning Set torque value

Size

  • 20
  • 25
  • 35
  • 50
  • 70

Number of disc springs

  • 1L: Weak
  • 1: 1pc
  • 2: 2pc

Shaft bore tolerance

  • F: F7
  • G: G7
  • H: H7
  • J: JS7
  • P: P7
  • M: M7
  • N: N7
  • K: K7
  • R: R7

Shaft bore diameter

  • 1mm units

Keyway tolerance

  • J: New JIS Js9
  • P: New JIS P9
  • F: Old JIS F7
  • E: Old JIS E9

Set screw positioning (Position from adjusting nut side)

  • D1 (Standard) Set screw positioning fig.
  • D2 Set screw positioning fig.
  • D3 Set screw positioning fig.
  • D4 Set screw positioning fig.
  • D5 Set screw positioning fig.

Set torque value

  • The torque setting is shown in N·m units.
  • *Shown to one decimal place when the torque setting is less than 10N·m.
  • We can provide only D0 for TFK200, and D1, D3, D4 for TFK250 to 700.
  • Refer to the Tsubaki Overload Protector catalog for available sprocket sizes.
  • The code T indicating Torque Keeper side will be shown for no-coupling type as well after the change.

Coupling Type

Before change

TFK25 - 1C - T 20 J X C 20 J - 1.6
(1) (2) (3) (1) (2) (3) (4)
  • (1) T: Torque Keeper side, C: Coupling side
  • (2) Shaft bore diameter mm
  • (3) [Torque Keeper side] Bore tolerance: H7, Keyway tolerance: New JIS Js9 (Set screws at 1 location), [Coupling side] Bore tolerance: H7, Keyway tolerance: New JIS Js9 (Set screws at 2 locations)
  • (4) Set torque value kgf·m

After change

TFK 25 - 1 C - T H20JD1 X C H20J D5 - N16
Series Size Number of disc springs Type Torque Keeper side Same notation as no-coupling type Coupling side Same notation as no-coupling type Set screw positioning * Set torque value

Size

  • 200
  • 250
  • 350
  • 500
  • 700
  • 10
  • 14
  • 20

Number of disc springs

  • [TFK200 to TFK700]
    1L, 1, 2
  • [TFK10]
    16, 24
  • [TFK14]
    10, 15
  • [TFK20]
    6, 12

Shaft bore tolerance

  • F: F7
  • G: G7
  • H: H7
  • J: JS7
  • P: P7
  • M: M7
  • N: N7
  • K: K7
  • R: R7

Shaft bore diameter

  • 1mm units

Keyway tolerance

  • J: New JIS Js9
  • P: New JIS P9
  • E: Old JIS E9
  • F: Old JIS F7

Set screw positioning (Coupling side) *

  • D0 Set screw positioning fig.
  • D1 Set screw positioning fig.
  • D2 Set screw positioning fig.
  • D3 Set screw positioning fig.
  • D4 Set screw positioning fig.
  • D5 (Standard) Set screw positioning fig.
  • D6 Set screw positioning fig.
  • D7 Set screw positioning fig.
  • D8 Set screw positioning fig.

Set torque value

  • The torque setting is shown in N·m units.
  • *Shown to one decimal place when the torque setting is less than 10N·m.
  • Note: The set screw position of the Torque Keeper side is as seen from the adjusting nut side, and the set screw position of the coupling side is as seen from the hub side.

Example of Shock Guard TGF Series Model number changes

TGF Series Details of model number changes

No-coupling type

Before change

TGF20 - L2 - 20 J - 1.9
(1) (2) (3)
  • (1) Shaft bore diameter mm
  • (2) Bore tolerance: H7, Keyway tolerance: New JIS Js9 (Set screws at 2 locations at 90º)
  • (3) Set torque value kgf·m

After change

TGF 20 - L 2 - T H 20 J D2 - N19
Series Size Spring strength Type Shock Guard side Shaft bore tolerance Shaft bore diameter Keyway tolerance Set screw positioning Set torque value

Size

  • 20
  • 30
  • 45
  • 65
  • 90

Spring strength

  • L: Weak
  • M: Medium
  • H: Strong

Type

  • 2: Type2
  • 3: Type3

Shaft bore tolerance

  • F: F7
  • G: G7
  • H: H7

Shaft bore diameter

  • 1mm units

Keyway tolerance

  • J: New JIS Js9
  • P: New JIS P9
  • F: Old JIS F7

Set screw positioning (Position from adjusting nut side)

  • D0 Set screw positioning fig.
  • D2 (Standard) Set screw positioning fig.
  • D3 Set screw positioning fig.
  • D4 Set screw positioning fig.
  • D5 Set screw positioning fig.

Set torque value

  • The torque setting is shown in N·m units.
  • *Shown to one decimal place when the torque setting is less than 10N·m.
  • The code T indicating Shock Guard side will be shown for no-coupling type as well after the change.

Coupling Type

Before change

TGF20 - L5 - T 20 P X C 30 P - 1.8
(1) (2) (3) (1) (2) (3) (4)
  • (1) T: Shock Guard side, C: Coupling side
  • (2) Shaft bore diameter mm
  • (3) [Shock Guard side] Bore tolerance: H7, Keyway tolerance: New JIS Js9 (Set screws at 2 locations, on the keyway), [Coupling side] Bore tolerance: H7, Keyway tolerance: Old JIS E9 (Set screws at 2 locations at 90º)
  • (4) Set torque value kgf·m

After change

TGF 20 - L 5 - T H20PD2 - C H30PD2 - N18
Series Size Spring strength Type Shock Guard side Same notation as no-coupling type Coupling side Same notation as no-coupling type Set torque value

Size

  • 20
  • 30
  • 45
  • 65
  • 90

Spring strength

  • L: Weak
  • M: Medium
  • H: Strong

Type

  • 2: Type2
  • 3: Type3

Shaft bore tolerance

  • F: F7
  • G: G7
  • H: H7

Shaft bore diameter

  • 1mm units

Keyway tolerance

  • J: New JIS Js9
  • P: New JIS P9
  • F: Old JIS F7

Set screw positioning *

  • D0 Set screw positioning fig.
  • D2 (Standard) Set screw positioning fig.
  • D3 Set screw positioning fig.
  • D4 Set screw positioning fig.
  • D5 Set screw positioning fig.

Set torque value

  • The torque setting is shown in N·m units.
  • *Shown to one decimal place when the torque setting is less than 10N·m.
  • Note: The set screw position of the Shock Guard side is as seen from the adjusting nut side, and the set screw position of the coupling side is as seen from the hub side.

Example of Shock Guard TGK Series Model number changes

TGK Series Details of model number changes

No-coupling type

Before change

TGK20 - A2 - 20 J
(1) (2)
  • (1) Shaft bore diameter mm
  • (2) Bore tolerance: H7, Keyway tolerance: New JIS Js9 (Set screws at 2 locations at 90º)

After change

TGK 20 - A 2 - T H 20 J D2
Series Size Air pressure Type Shock Guard side Shaft bore tolerance Shaft bore diameter Keyway tolerance Set screw positioning

Size

  • 20
  • 30
  • 45

Air pressure

  • A: Air pressure

Type

  • 2: Type 2

Shaft bore tolerance

  • F: F7
  • G: G7
  • H: H7

Shaft bore diameter

  • 1mm units

Keyway tolerance

  • J: New JIS Js9
  • P: New JIS P9
  • F: Old JIS F7

Set screw positioning (Position from adjusting nut side)

  • D0 Set screw positioning fig.
  • D2 (Standard) Set screw positioning fig.
  • D3 Set screw positioning fig.
  • D4 Set screw positioning fig.
  • D5 Set screw positioning fig.
  • The code T indicating Shock Guard side will be shown for no-coupling type as well after the change.

Coupling Type

Before change

TGK20 - A5 - T 20 J X C 30 P
(1) (2) (3) (1) (2) (3)
  • (1) T: Shock Guard side, C: Coupling side
  • (2) Shaft bore diameter mm
  • (3) Bore tolerance: H7, Keyway tolerance: Old JIS E9 (Set screws at 2 locations at 90º)

After change

TGK 20 - A 5 - T H20JD2 - C H30JD2
Series Size Air pressure Type Shock Guard side Same notation as no-coupling type Coupling side Same notation as no-coupling type

Size

  • 20
  • 30
  • 45

Air pressure

  • A: Air pressure

Type

  • 5: Type 5
  • 7: Type 7

Shaft bore tolerance

  • F: F7
  • G: G7
  • H: H7

Shaft bore diameter

  • 1mm units

Keyway tolerance

  • J: New JIS Js9
  • P: New JIS P9
  • F: Old JIS F7

Set screw positioning *

  • D0 Set screw positioning fig.
  • D2 (Standard) Set screw positioning fig.
  • D3 Set screw positioning fig.
  • D4 Set screw positioning fig.
  • D5 Set screw positioning fig.
  • Note: The set screw position of the Shock Guard side is as seen from the adjusting nut side, and the set screw position of the coupling side is as seen from the hub side.

Example of Shock Guard TGE Series Model number changes

TGE Series Details of model number changes

No-coupling type

Before change

TGE50 - M3 - 40 J - 25
(1) (2) (3)
  • (1) Shaft bore diameter mm
  • (2) Bore tolerance: H7, Keyway tolerance: New JIS Js9 (Set screws at 2 locations at 120º)
  • (3) Set torque value kgf·m

After change

TGE 50 - M 3 - T H 40 J D2 - N245
Series Size Spring strength Type Shock Guard side Shaft bore tolerance Shaft bore diameter Keyway tolerance Set screw positioning Set torque value

Size

  • 17
  • 25
  • 35
  • 50

Spring strength

  • L: Weak
  • M: Medium
  • H: Strong

Type

  • 1: Type1
  • 3: Type3

Shaft bore tolerance

  • F: F7
  • G: G7
  • H: H7

Shaft bore diameter

  • 1mm units

Keyway tolerance

  • J: New JIS Js9
  • P: New JIS P9
  • F: Old JIS F7

Set screw positioning (Position from adjusting nut side)

  • D0 Set screw positioning fig.
  • D2 (Standard) Set screw positioning fig.
  • D3 Set screw positioning fig.
  • D4 Set screw positioning fig.

Set torque value

  • The torque setting is shown in N·m units.
  • *Shown to one decimal place when the torque setting is less than 10N·m.
  • The code T indicating Shock Guard side will be shown for no-coupling type as well after the change.
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