O-OKA
supplies NET-FORGED GEARS for all your needs
 o-oka corporation
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Being consistent in top condition is our standard
O-OKA's Forged Gear provides a lot of merits as follows
Compact and weight-reduced transmission box is ensured.
One body gear with Clutch-gear and Main-gear, called Monoblock Gear, makes transmission box more compact and more weight-reduced. Furthermore, our "Recessed Monoblock Gear" brings you a surprising impact.
Strength is remarkably enhanced.
By utilizing continuous metal flow lines which is forging unique merit, more strength which is not actualized in cutting is acquired.
Shift feeling is remarkably improved.
O-oka's precision gears with smooth forged surface have realized remarkable
Shift feeling, and have gotten a great customer satisfaction.
Cutting, Forging
Specialized cutting equipment such as a gear cutting machine is not necessary.
  • Investment for new facility or equipments for gear cutting, assembly and their renewal are not necessary.
  • Coining for distortion after heat treatment is not necessary.
  • Clean plant without chips and oil (grease).
Performance on a global stage...
Major cuntomers
O-oka’s forging technologies have been highly evaluated by all the world-leading auto manufacturers, and become the key element for current automotive technical achievement.
Sophisticated manufacturing processes backing up O-oka forging technology
DESIGN-DIE PRODUCTION-HOT FORGING-HEAT TREATMENT-COLD FORGING-MACHINING-CARBRIZING-FINISHING-INSPECTION
Our total production proccesses give customers a wide choice of product condition.
We deliver the top quality to worldwide market.
As a result of thorough quality control, we have willingly received many prizes from the customers over the world.
PM EXCELLENT WORKSHOPòPRIZE 1992
 PM EXCELLENT WORKSHOP
 PRIZE
EATON GOOD SUPPLIER PRIZE 2001
 EATON GOOD SUPPLIER PRIZE
DAIHATSU GOOD QUALITY PRIZE 1994
 DAIHATSU GOOD QUALITY PRIZE
JATCO GOOD SUPPLIER PRIZE 2002
 JATCO GOOD SUPPLIER PRIZE
QS9000 CERTIFICATE 1998
 QS9000 CERTIFICATE (VOID)
ISO14001:2004 CERTIFICATE 2001
 ISO14001:2004 CERTIFICATE
TREMEC GOOD SUPPLIER PRIZE 2001
 TREMEC GOOD SUPPLIER PRIZE
EATON GOOD SUPPLIER PRIZE 2005
 EATON GOOD SUPPLIER PRIZE
2005
 The 1st Craftwork Japan
 Grand Prix "EXCELLENT PRIZE"
2005
 Chubu Science and Technology
 Center Special Award.
2006
 The best 300 small & medium
 manufacturing enterprise
2006
 The 4th Promoting Machine
 Industry Award
2006
 The 20th Chunichi Industrial
 Technical Award
2006
 ISO/TS 16949 CERTIFICATE
2009
 EATON PREMIER SUPPLIER AWARD
 
In addition, we have received high quality rate from other customers
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