NORMAL

SPORTS

INCH UP SPRING FOR 4WD

ISO

TECHNOLOGY

spring
Do you know how important is the Coil Spring???
  • I have replaced the shock absorber recently, but I wonder why shock absorber gets damaged immediately?
  • It’s because you haven’t replace the Coil spring too!!! If you don’t change Coil Spring with the shock absorber too at least once every two times, it increases the burden on the shock absorber and so the fastest consumption of it.

  • I have replaced the shock absorber recently, but why still feel slow reaction to steering and a larger rolling at curves?
  • It’s because you haven’t replace the Coil spring too!!! Coil Spring supports the whole vehicle weight instead of the shock absorber!!!!

  • I have replaced the shock absorber recently, but why do I still feel it so uncomfortable, I can feel rugged impacts during driving?
  • The reason is because you haven’t replace the Coil spring too!! The comfort of driving a car will depend on the condition of the Coil Spring.

  • I have replaced the shock absorber recently, but why the vehicle’s height still sinks?
  • Because you haven’t replace the Coil spring too!!! What decides the vehicle’s height is the Coil Spring.

  • I have replaced the shock absorber recently, but why it still takes long distance to stop??
  • It’s because you haven’t replace the Coil spring too!!! When you stop, the Coil Spring acts against the sinking of the front part of the vehicle, what improves the brake’s efficiency is the Coil Spring !!!!

Now ,it’s time to replace Coil Spring.!!!!

You must understand The Coil spring is more important than the shock absorber !!! Shock absorber has a supporting role !! Coil Spring is the protagonist !!!

spring
Do you know why OBK coil springs are high quality ?
  • OBK has the quality management system ISO9001.
  • OBK uses the same raw material SAE9254 than TOYOTA genuine coil spring.
  • OBK provides high quality spring testing endurance for 250,000 times. In that point it doesn’t compare to with other brands.
  • OBK demonstrates to be more stable and with higher capacity than the genuine products when loads are applied. Beside OBK also develops and provides heavy duty type spring HD/HDD to improve the durability on rough road. (The following is a comparative table)
  • OBK has 82 years manufacturing experience, thereby OBK selects the best way in all manufacturing processes includes heat treatment, offering a complete product.
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Now let’s drive with “OBK” Coil Spring !!!!

Made in Japan “OBK” Coil Spring promises you a safe and comfortable drive !!!

Process for preparing a spring

Start-to-finish production is a strength from a design to a finished product.

1.DESIGN
PLAN
2.HEATING FURNACE
HEATING FURNACE
3.COILING
ROLLED
4.HARDENING
SHOT PEENING
5.TEMPERING
TEMPERING
6.SHOT PEENING
HARDENING
7.SETTING
SETTING
8.POWDER COATING
POWDER COATING
9.EXPORT SPRING(MARKING)
EXPORT SPRING(MARKING)
10.FINISHED PRODUCT
FINISHED PRODUCT
Various inspection
1.Examination for load
Examination for hardness
2.Magnetic inspection
Magnetic inspection
3.Examination for hardness
Examination for load