Products
Safety Coupling

torque limiter safety coupling, mechanical torque limiter , overload torque coupling, multiple disengagement, single disengagement, coupling with sensor, proximitiy sensor, torque disengagement, ISO 9001, ISO 14001, Korean made components, IT components, mechanical components, motion components, motion accessories, motion control, motion control components, semi conductor components, display machine components, small sized machine components, small mechanical components, machine components, factory automation part

Safety Coupling is the most optimistic solution to meet both purposes
of power transmission and overload prevention.

STL Series

Safety Coupling for Torque Overload Protection (Coupling attached Type)

  • STL – 2D (.dwg)
  • STL – 3D (.step)

General Set-screw Type

STL25~STL50
STL150

A.P. LOCK Type

Dimensions / Performance
Model CAD Torque
Range
(N·m)
Spring Size (±0.3mm)
Color Q’ty A B C E F G H I J K L M
STL25-L 1.5 ~ 7 BLUE 3 70 54 25 M30X1.0P 58 74 6.3 13 19 34.8 33.6 27.2
STL25-M 4.5 ~ 20 RED 6
STL25-H 9 ~ 25 GREEN 6
STL55-L 7.5 ~ 27 BLUE 6 79 80 35 M40X1.0P 70 104 9.4 19 29.7 52.1 42.9 25.8
STL55-M 13.5 ~ 41 RED 6
STL55-H 21 ~ 55 GREEN 6
STL150-L 20~50 RED 5 123 88 46 M55X1.5P 90 125 10 19 30 69.8 49.1 26
STL150-M 30~80 GREEN 5
STL150-H 55~150 GREEN 10
Model CAD Size (±0.3mm) Screw Max.
rpm
(min-1)
Moment
of Inertia
(kg·m2)
Mass
(kg)
Permissible Misalignment
N P Q R S T X Size Fastening
Torque
(N·m)
Angular
(˚)
Parallel
(mm)
End-play
(mm)
STL25-L 95.6 5 10 M4X16 12.5 30 1.2 2-M5 8 700 7.1X10-4 1.2 0.6 0.1 ±0.5
STL25-M
STL25-H
STL55-L 120.8 5 10 M5X18 14.5 40 1.3 2-M8 30 550 3.3X10-3 3 0.6 0.1 ±0.5
STL55-M
STL55-H
STL150-L 144.9 6 13 M6X25 14.5 55 2.1 M8 30 400 8.3X10-3 4.8 1 0.2 ±0.6
STL150-M
STL150-H
Standard Inner Diameter (ID)
Model Standard Inner Diameter (d1, d2) (mm)
10 11 12 14 15 16 17 18 19 20 21 22 24 25 28 30 32 35 38 40 42 45
STL25 d1 Coupling side General
d2 Torque Limiter side General Set-screw
A.P. Lock Type
STL55 d1 Coupling side General
d2 Torque Limiter side General Set-screw
A.P. Lock Type
STL150 d1 Coupling side General
d2 Torque Limiter side General Set-screw
A.P. Lock Type
Tightening amount – Slip torque correlation chart
How to Order
① Disengagement Torque Set-up
No mark
User’s own set-up
TS(torque)
Already set-up at a certain torque at the dispatch stage
② Keyway
No mark
No Keyway
K(b size)
Keyway processed according to the indicated b size. (Keyway is not applicable on A.P. Lock type)
③ Clamping way of torque limiter side
N
General Set-screw Type
P
A.P. Lock Type