Series T – Torque Limiters

Our Series T torque limiters feature a ball-detent clutch design. These adjustable torque limiters are available as couplings or pulley mount configurations. Our adjustable ball-dent torque limiters feature zero backlash, high rigidity, a disengagement detection ring, and multiple connection options.

What’s Next?

Torque Limiter Overview: Models TH – THK – TB – TE – TA – TAE

Model TH – Torque Limiter Coupling with Conical Clamp
(7 sizes with rated torque from 5-650 Nm)

Design Description: A hub design for mounting pulleys, sprockets, or gears. Shaft connection is by standard conical clamping hub.

Bore Diameters: Metric or inch bores from 8-56 mm, or 0.315-2.205 inches. Keyways are not available on these models.

Temperature Range: From as low as -30° C to as high as +120° C in standard version (3.6° F to 270° F). High temperature options available.

Sizes: TH-15, TH-30, TH-60, TH-150, TH-200, TH-300, TH-500

Sizing Chart:

TH153060150200300500
Adjustment Range available from - to (approx. values) (Nm)T KN5-15
12-25
20-40
35-70
5-20
10-30
20-60
50-100
10-30
25-80
50-115
20-70
45-150
80-225
30-90
60-160
140-280
250-400
100-200
150-240
220-440
80-200
200-350
320-650
Adjustment Range available from - to (approx. values) ("F" version)T KN7-158-20 or
16-30
10-30
20-40
30-60
20-60
40-80
80-150
80-140
or
130-200
120-180
160-300
300-450
50-150
100-300
250-500
Overall Length (mm)A40505458637084
Overall length ("F" version) (mm)ᴬF40505458667388
Actuation ring ∅ (mm)B5565739299120135
Actuation ring ∅ ("F" Version) (mm)ᴮF62708398117132155
Clamping fit length (mm)C192227.532324141
Inner Diameter from ∅ to ∅ H7 (mm)D8-2212-2212-2915-3720-4425-5625-56
Pilot Diameter h7 (mm)E40475568758290
Bolt-hole Circle Diameter ± 0.2 (mm)F475463788598110
Flange outside diameter -0.2 (mm)G5363728798112128
ThreadH6xM46xM56xM56xM66xM66xM86xM8
Distance (mm)K8111112121521
Distance (mm)L27373941.54751.559
Distance ("F" Version) (mm)ᴸF27373941.54751.568
Download - 2D DWG (W,D,G)
Download - 2D DWG (F)
Download - 2D PDF (W,D,G)
Download - 2D PDF (F)
Download - 3D STP (W,D,G)STPSTPSTPSTPSTPSTPSTP
Download - 3D STP (F)STPSTPSTPSTPSTPSTPSTP
For Full Tech Details Download Catalog

Model THK – Torque Limiter Coupling with Keyway Connection
(7 sizes with rated torque from 5-650 Nm)

Design Description: A hub design for mounting pulleys, sprockets, or gears. Shaft connection is by hollow bore with keyway.

Bore Diameters: Metric or inch bores from 8-58 mm, or 0.315-2.283 inches. Keyway sizes must be specified.

Temperature Range: From as low as -30° C to as high as +120° C in standard version (3.6° F to 270° F). High temperature options available.

Sizes: THK-15, THK-30, THK-60, THK-150, THK-200, THK-300, THK-500

Sizing Chart:

THK153060150200300500
Adjustment Range available from - to (approx. values) (Nm)T KN5-15
12-25
20-40
35-70
5-20
10-30
20-60
50-100
10-30
25-80
50-115
20-70
45-150
80-225
30-90
60-160
140-280
250-400
100-200
150-240
220-440
80-200
200-350
320-650
Adjustment Range available from - to (approx. values) ("F" version)T KN7-158-20
or
16-30
10-30
20-40
30-60
20-60
40-80
80-150
80-140
or
130-200
120-180
160-300
300-450
50-150
100-300
250-500
Overall Length A (mm)A34434648.5545771.5
Overall length ("F" version) (mm)AF34434648.5576075
Actuation ring ∅ (mm)B5565739299120135
Actuation ring ∅ ("F" Version) (mm)BF62708398117132155
Inner Diameter from ∅ to ∅ H7 (mm)D8-1912-25.412-3015-3820-4425-5025-58
Pilot Diameter h7 (mm)E40475568758290
Bolt-hole Circle Diameter ± 0.2 (mm)F475463788598110
Flange outside diameter -0.2 (mm)G5363728798112128
Distance (mm)K881112121521
Distance (mm)L27353739444759
Distance ("F" Version) (mm)LF27373941.54751.568
Download - 2D DWG (W,D,G)
Download - 2D DWG (F)
Download - 2D PDF (W,D,G)
Download - 2D PDF (F)
Download - 3D STP (W,D,G)STPSTPSTPSTPSTPSTPSTP
Download - 3D STP (F)STPSTPSTPSTPSTPSTPSTP
For Full Tech Details Download Catalog

Model TB – Torque Limiter Coupling with Clamping Hubs
(8 sizes with rated torque from 5-500 Nm)

Design Description: A shaft coupling design providing angular, axial, and parallel misalignment compensation, with a single screw split hub shaft connection design.

Bore Diameters: Metric or inch bores from 3-80 mm, or 0.125-3.125 inches. Optional keyway reduces maximum bore capacity.

Temperature Range: From as low as -30° C to as high as +120° C in standard version (3.6° F to 270° F). High temperature options available.

Sizes: TB-15, TB-30, TB-60, TB-80, TB-150, TB-200, TB-300, TB-500

Sizing Chart:

TB15306080150200300500
Adjustment Range available from - to (approx. values) (Nm)T KN5-10
or
8-20
10-25
or
20-40
10-30
or
25-80
20-70
or
30-90
20-70
45-150
80-180
30-90
60-160
140-240
250-400
100-200
150-240
20-320
80-200
200-350
300-500
Adjustment Range available from - to (approx. values) ("F" version)T KN7-158-20 or
16-30
20-40
or
30-60
20-60
or
40-80
20-60
40-80
80-150
80-140
or
130-200
120-180
or
160-300
60-150
100-300
250-500
Overall Length (mm)A75 | 8287 | 95102 | 112115 | 127116 | 128128 | 140139 | 153163 | 177
Overall length ("F" version) (mm)AF75 | 8287 | 95102 | 112117 | 129118 | 130131 | 143142 | 156167 | 181
Actuation ring ∅ (mm)B556573929299120135
Actuation ring ∅ ("F" Version) (mm)BF6270839898117132155
Clamping fit length (mm)C2227313535404251
Inside Diameter from ∅ to ∅ H7 (mm)D1/D210-2612-3015-3219-4219-4224-4530-6035-60
Diameter (mm)D321.124.132.136.136.142.158.160.1
Outside Diameter of coupling (mm)E495566818190110123
Distance (mm)F1924283131353545
Distance ("F" Version) (mm)FF1922293130333543
Distance (mm)G6.57.59.5111112.51317
Distance between centers (mm)H1719232727313941
Download - 2D DWG (W, D,G)
Download - 2D DWG (F)
Download - 2D PDF (W,D,G)
Download - 2D PDF (F)
Download - 3D STP (W,D,G)STP | STP STP | STP STP | STPSTP | STPSTP | STPSTP | STPSTP | STPSTP | STP
Download - 3D STP (F)STP | STPSTP | STPSTP | STPSTP | STPSTP | STPSTP | STPSTP | STPSTP | STP
For Full Tech Details Download Catalog

Model TE – Press-Fit Elastomer Torque Limiter Coupling with Clamping Hub
(7 sizes with rated torque from 1-500 Nm)

Design Description: A more economical jaw coupling design, with elastomer insert for vibration damping. Shaft connection via single screw split hubs. Provides zero backlash along with angular, axial, and parallel misalignment compensation.

Bore Diameters: Metric or inch bores from 6-75 mm, or 0.25-2.875 inches. Keyways are available, but will reduce bore capacity.

Temperature Range: See Catalog

Sizes: TE-5, TE-20, TE-60, TE-150, TE-300, TE-450

Sizing Chart:

TE5102060150300450
Type (Elastomer insert)A | BA | BA | BA | BA | BA | BA | B
Rated Torque (Nm)T KN9 | 1212.5 | 1617 | 2160 | 75160 | 200325 | 405530 | 660
Max. Torque (Nm)T Kmax18 | 2425 | 3234 | 42120 | 150320 | 400650 | 8101060 | 1350
Adjustment range possible from - to (Nm)T KN1-3
or
3-6
2-6
or
4-12
10-25
or
20-40
10-30
or
25-80
20-70
45-150
80-180
100-200
150-240
200-320
80-200
200-350
300-500
Adjustment range ("F" version) possible from - to (Nm)TKNF2.5-4.52-5
or
5-10
8-20
or
16-30
20-40
or
30-60
20-60
40-80
80-150
120-180
or
180-300
60-150
100-300
250-500
Overall length (mm)A50608696106140164
Overall length ("F" version) (mm)ᴬF50608696108140164
Actuation ring ∅ (mm)B3545657392120135
Outside Diameter of actuation ring ("F" Version) (mm)ᴮF4251.5708398132155
Clamping fit length (mm)C1810.31720213134
Fit Length (mm)C214162731354251
Length of Hub (mm)C316.720.73136395257
Inside Diameter from ∅ to ∅ H7 (mm)D14-12.75-168-2512-3219-3620-4528-60
Inside Diameter from ∅ to ∅ H7 (mm)D26-146-1612-3015-3219-4230-6035-60
Diameter (mm)D314.120.124.132.136.158.160.1
Inside Diameter (Elastomer coupling) (mm)DE10.214.219.226.229.236.246.2
Diameter of the hub (mm)E12532425666.582102
Diameter of the hub (mm)E21940556681110123
Distance (mm)F15172428313545
Distance ("F" Version) (mm)FF14162229303543
Distance between centers (mm)H1810.51521242938
Download - 2D .dxf - COMING SOON
Download - 3D .STP
For Full Tech Details Download Catalog

Model TA – Torque Limiter Coupling with Clamping Collar
(4 sizes with rated torque from 10-700 Nm)

Design Description: Aluminum Hub with clamping collar and a single clamping screw. Clutch system spring loaded with ball-detent principal. Operable temperature range from -30 to 120°C

Bore Diameters: Metric or inch diameters from 12-60 mm.

Sizes: TA-30, TA-60, TA-150 and TA-300

Sizing Chart:

TA3060150300
Adjustment range from - to (Nm)T KN10-35
30-80
40-135
30-80
60-120
100-200
40-100
100-200
150-300
200-350
300-450
400-550
550-700
Overall length (mm)A45536372
Actuation Ring ∅ (mm)B637492118
Clamping fit length (mm)C15182224
Bore Diameter from ∅ to ∅ H7 (mm)D12-3016-3519-4222-60
Pilot diameter h7 (mm)E43536885
Bolt-Hole circle diameter ± 0.2F48607595
Distance (mm)K6799
Distance (mm)M7.591112
∅ Base element (mm)O35425470
∅ Adjustment Nut (mm)O1556682100
∅ Flange -0.2 (mm)O2587287110
∅ Clamp Ring (mm)O3597290114
Download - 2D .DWG
Download - 3D .STPSTPSTPSTPSTP
For Full Tech Details Download Catalog

Model TAE – Press-Fit Elastomer Torque Limiter Coupling with Clamping Hub
(4 sizes with rated torque from 10-700 Nm)

Design Description: A more economical jaw coupling design, with elastomer insert for vibration damping. Shaft connection via single screw split hubs. Provides zero backlash along with angular, axial, and parallel misalignment compensation.

Bore Diameters: Metric or inch bores from 12 mm – 60 mm or 0.47 – 2.36 inches.

Temperature Range: See catalog

Sizes: TAE-30, TAE-60, TAE-150 and TAE-300

Sizing Chart:

TAE3060150300
Type (elastomer insert)A | BA | BA | BA | B
Rated TorqueT KN60 | 75160 | 200325 | 405530 | 660
Max. TorqueTKN max120 | 150320 | 400650 | 8101060 | 1350
Adjustment range possible from - to (Nm)T KN10-35
30-80
40-135
30-80
60-120
100-200
40-100
100-200
150-300
200-350
300-450
400-550
550-700
Overall Length (mm)A8593122135
Actuation ring diameter (mm)B637492118
Hub Length (coupling hub end) (mm)C/C120/3621/3931/5234/57
Length of Hub (torque limiting portion)C245536372
Bore diameter from ∅ to ∅ H7 (mm)D1/D212-32/12-3016-36/16-3519-45/19-4222-60/22-60
Inner diameter (elastomer insert)DE26.229.236.246.2
Distance to actuation ring edge (mm)L22263235
Distance (mm)M1/M210/7.512/915/1117.5/12
Clamping Hub ∅, elastomer couplingO5666.582102
∅ Adjustment nutO1556682100
Clamping hub ∅, safety couplingO2597290112
Download - 2D DWG
Download - 3D STPSTPSTPSTPSTP
For Full Tech Details Download Catalog

Coupling Insert Options, Temperature Ranges, and Stiffness Ratings:

The elastomer inserts are made of thermoplastic polyurethane (TPU), in a variety of shore values. To provide different stiffness and vibration damping characteristics, optional Hytrel® material can be offered for higher temperature applications.

The inserts are pre-stressed during assembly which provides zero backlash, more consistent load sharing, and improved restoring forces for precise positioning and repeatability.

For information on shaft misalignment, torsional stiffness and other details about the elastomer inserts, please download the catalog.

* Due to the electrically conductive properties of the insert, electrostatically charging of the coupling is prevented. This eliminates sparks during normal operation in explosive areas. Technical data is available upon request.

The values of the relative damping were determined at 10 Hz and 20˚C.

Other Models Available

Why Choose Torque Limiters & Safety Couplings?

Torque limiters and safety couplings are available in pulley and coupling mount designs. They feature zero backlash, high rigidity and a disengagement detection ring, as well as multiple connection options.

Sample Applications

  • Assembly Machinery

  • Automated Plants

  • CNC Milling/Grinding

  • Industrial Robots

  • Linear Actuators

  • Machine Tools

  • Manipulators

  • Metal Cutting Machinery

  • Packaging Machinery

  • Printing Machinery

  • Robotic Axes

  • Servo Drives

  • Textile Machinery

  • Woodworking Machinery

  • and more…