GN 437-A4Scharnieren

Roestvrij staal

Zinkspuitgietwerk / roestvrij staal, met instelbare wrijving

Technical datasheet

GN 437-A4

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Code	l₁	l₂	d	h₁	h₂	h₃	h₄	l₃	m₁	m₂	A/F	Max. recommended tightening torque of the set screw in Nm

GN 437-A4-40-40-A-GS	40	40	5.3	13.5	5	7	14	13	25	25	2.5	0.5
GN 437-A4-50-50-A-GS	50	50	6.5	15.5	6	8	16	16.5	30	30	3	0.75
GN 437-A4-60-60-A-GS	60	60	8.3	18.5	7.5	9.5	19	20	36	36	4	1.5

Type

Type A: 2x2 bores for countersunk screws

Hinge leafs

Zinc die casting ZD

Powder coated

Black, RAL 9005, textured finish SW

Silver, RAL 9006, textured finish SR

Stainless Steel AISI 316 A4

Matte shot-blasted finish GS

Friction cone

Plastic (Polyacetal POM)

Operating temperature -20 °C to +80 °C

Black, RAL 9005

Adjustment screw / Hex nut

Steel, zinc plated, blue passivated for ZD
Stainless steel for A4

The adjustment screw in the hinges GN 437 allows the mobility of the hinge to be changed. This also generates a constant braking torque adjustable across the whole of the rotating range. The rotation of doors and flaps is so inhibited, also preventing the inadvertent movement.

The friction torque is accomplished by interlocking two slim friction cones. The large friction surface and the hard-wearing plastic of the friction cones guarantee a long service life with only slight reduction in the friction torque over time. This can be re-adjusted, if necessary, with the adjustment screw.

The stainless steel version is particularly suited for applications in highly aggressive conditions.