LL7 Self-Closing Hinge | LEECO
LL7A friction hinge
Each hinge delivers stable torque output, zero backlash, and minimal springback, ensuring reliable and quiet operation in every cycle.
APPLICATIONS:
-- Small Display panels, handheld device, small box lid, door lid, industrial enclosures, office equipment…
TORQUE RATINGS:
-- Symmetric: 0.4 - 0.9Nm
-- Static torque could be specified at every 0.1 Nm (About 0.9 lb-in) interval within range given above
CYCLE LIFE:
-- Over 25,000 cycle life within ±20% of static torque specification
MATERIALS:
-- Zinc alloy, steel and grease
DESIGN TOOLS :
- Self locking feature
- 360 degree shaft rotation
- Nature and plating finish
- M3.0 or #4 screw mounting hole
- Zero backlash
- Minimal or no springback
- RoHS compliant
- REACH compliant
- Customized torque is available
- Partial design customization on this friction torque hinge is also available
Q：How does a friction torque self-closing hinge work?
A：The hinge integrates an internal torque mechanism that automatically returns the lid or cover to its closed position, providing consistent closing force without hydraulic systems.
Q：Can I customize the torque value?
A：Yes. Torque levels can be preset or customized to match different lid weights and opening angles. OEM/ODM customization is available.
Q：Is it suitable for fire-rated lids?
A：Yes. The self-locking and friction torque design makes it suitable for fire-rated lid applications, maintaining reliable closure to meet safety requirements.
Q：What finishes are available?
A：Natural, plating, or custom finishes are available depending on environmental
conditions and design preferences.
Q：Does it require maintenance?
A： The hinge is designed for long-term use without additional lubrication
or external power sources.