Suretorq Hinges
KATO Advanex Hinges Suretorq
The KATO Suretorq hinges have been developed to provide lightweight solutions for devices requiring position control, and they are manufactured with a high-quality stainless steel body. Maintaining a specific angle within design parameters, the Suretorque hinge range exhibits a very low percentage of torque drop compared to initial values, even when used in both directions. At 50,000 cycles, Suretorq hinges show less than a 10% performance drop.
Suretorq hinges are available in standard sizes to meet the requirements of common applications. Design, durability, and product validation tests have been conducted. By using KATO Suretorq hinges, it is possible to significantly reduce design and production timelines.
Suretorq hinges are suitable for a wide range of applications, including Notebook PCs, digital cameras, medical devices, and dental equipment.
KATO Suretorq are available in two types:
ST010 – ST040
(Left or right assembly)
ST060 – ST080
(Left, right, or bi-directional assembly)
Features and Benefits
- Constant torque – Designed for 50,000 cycles or more without failures!
- High-strength hinges – Virtually no wear.
- Lightweight, compact, maximizing space and weight savings.
- ST060 & ST080 allow bi-directional mounting.
- Small diameter for the thinner products.
- Available with both Symmetric and Asymmetric torque.
A standard range is available, but custom shaft configurations are available. Contact technical support for more information. Example of a standard SureTtorq part code:
ST 080 B 0
1 2 3 4
______________________________________________
| 1 | 2 | 3 | 4 |
| Type | Torque value (kgf-mm) |
Style | Assembly |
| ST – Suretorq | 10 | A – Left OR right assembly | 0 – Left hand |
| 15 | B – Bi-Directional | 1 – Right hand | |
| 25 | |||
| 30 | |||
| 40 | |||
| 60 | |||
| 80 |
| Montaggio Sinistro | Right assembly | Bi-Directional |
| ST010A0 | ST010A1 | — |
| ST015A0 | ST015A1 | — |
| ST025A0 | ST025A1 | — |
| ST030A0 | ST030A1 | — |
| ST040A0 | ST040A1 | — |
| ST060A0 | ST060A1 | ST060B0 |
| ST080A0 | ST080A1 | ST080B0 |
Specifications
All dimensions for metric models are in mm.
ST010A0 (Right assembly)
ST010A1 (Left assembly)
Torque: 10 kgf-mm | 0.87 lbf-in
ST015A0 (Right assembly)
ST015A1 (Left assembly)
Torque: 15 kgf-mm | 1.30 lbf-in
ST025A0 (Right assembly)
ST025A1 (Left assembly)
Torque: 25 kgf-mm | 2.17 lbf-in
ST030A0 – ST040A0
ST030 Torque: 30 kgf-mm | 2.60 lbf-in
ST040 Torque: 40 kgf-mm | 3.47 lbf-in
| Code | Shaft | Support | Assembly direction | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | B | C | D | E | F | G | H | I | J | K | ||
| ST030A0 ST030A1 |
2 | 4 | 8 | 4 | 2.2 | 4 | 5 | 8 | 0.8 | 4.1 | 2 | Left Right |
| ST040A0 ST040A1 |
3 | 4 | 10 | 5 | 2.8 | 5 | 6.5 | 10 | 1 | 5 | 3 | Left Right |
ST060A0 – ST080A0
Torque ST060A0: 60 kgf-mm | 5.21 lbf-in
Torque ST080A0: 80 kgf-mm | 6.94 lbf-in
| Code | Shaft | Support | Assembly direction | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | B | C | D | E | F | G | H | I | J | K | L | ||
| ST060A0 ST060A1 ST060B0 |
2.5 | 4 | 13 | 4 | 5 | 2.2 | 4 | 5 | 8 | 0.8 | 4.1 | 2 | Left Right Bi-Directional |
| ST080A0 ST080A1 ST080B0 |
3 | 5 | 19 | 5 | 9 | 2.8 | 5 | 6.5 | 10 | 1 | 5 | 3 | Left Right Bi-Directional |
Calculating the torque requirements
Use the following formula: T = W x L x Cos(A)
Where:
A – Angle
L – Distance from the Center of Gravity
T – Torque
W – Weight of the object to be supported
Example:
W = 2 lbs – L= 4″ inch – Angle = 0°
T = (2) (4) Cos(0°)
T = 8lbf – in.
Example:
W = 0.9Kg L= 101.6mm Angle = 0°
T = (2) (4) Cos(0°)
T = 92.16 kgf-mm
Notes:
1. To convert from lbf-in to kgf-mm, multiply by 11.5212
2. To convert from kgf-mm to lbf-in, multiply by 0.0868
3. If 2 hinges are used: 8 lb-in/2 = 4 lb-in per hinge – 92.16 kgf-mm/2 = 46,08 kgf-mm per hinge
Series from ST010 to ST040
Series ST040A0 – ST040A1
Series ST010A0 – ST010A1
Series from ST060 to ST080
Series ST060A0
Series ST080B0