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GN 4490
Ball-shaped door lock
Die-cast zinc alloy or AISI 316 stainless steel LHC
Main specifications
Ball containment body and retainer
- Die-cast zinc alloy (ZD), epoxy resin coating, RAL 9005 black colour (SW) and RAL 9006 grey colour (SR), matte finish.
- AISI 316 stainless steel LHC (NI)
Ball containment body versions:
- Version A1: pass-through holes with housing for flat countersunk-head screws, standard compression spring.
- Version A2: pass-through holes with housing for flat countersunk-head screws, reinforced compression spring.
- Version B1: threaded blind hole, standard compression spring.
- Version B2: threaded blind hole, reinforced compression spring.
Retainer versions:
- Version AG: pass-through holes with housing for flat countersunk-head screws.
- Version BG: threaded pass-through hole.
Ball bearing runner
Acetal resin based (POM) technopolymer.
Balls
- AISI 420C stainless steel (version ZD).
- Ceramic, silicon nitride, black colour (version NI).
Springs
- AISI 301 stainless steel (version ZD).
- AISI 316Ti stainless steel (version NI).
General information
Features and applications
GN 4490 ball-shaped door locks are generally used for closing panels and doors that must be opened and closed frequently with ease. They consist of a jamb body, equipped with balls and springs, and a door body that engages laterally or frontally. The installation can be oriented as required.
Accessories
Accessories
- GN 4490.1: mounting plates for the ball containment body.
- GN 4490.2: mounting plates for the retainer
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