Be all ears! We have good news for you.
Maruha Motors launches a lightweight flywheel, the Type-C.
This cutting-edge model has been brought by our long career.
Our new line is billeted using Chrome-molybdenum steel, even though the
conventional products were reworked with the genuine MIATA flywheel.
And with more special features, you will grab at the Type-C!
To develop the new product, we have kept in mind, its performance improvement
and the greatly satisfying specs.
Now, sit back and relax reading the five special features about the Type-C.
As you know, our new Type-C is made from Chrome-molybdenum steel.
This substance is from chrome-molybdenum containing carbon steels.
Due to its features, like the tensile strength it is our ideal material to
create Maruha's lightweight flywheel, enhancing its rigidity.
Go back to the story.
Left 28R Type-C for BP engine (6.2kg)
Right 01R Type-C for B6 engine (5.7kg)
Because of its low cost, we have reworked with the genuine flywheel for our
former models.
The reason why we reworked was that so many users had needed slightly
lightweight flywheels.
It was the shortcut to meeting our customer's needs.
But, never cakewalks.
To make the flywheels of great precision, Maruha operated the machining centers
for the wheels only, enhanced the programs.
Besides we took an excellent balance of the products.
Only zillions of test data could raise our former flywheels.
The Type-C is produced, maximizing the know-how on our existing goods.
The high-quality and rational process brings the new product.
By shaving the flywheels with a single specialized machine, it can perform
from the peripheral milling to making the pinholes and the female threads.
As a result, there is no spacing error found in a huge number of flywheels.
Moreover, we do not need to adjust different kinds of machines for each process.
In addition, you cannot find any unnecessary holes on the Type-C to lighten
the product.
Multi-hole lightweight flywheels are not ideal, as these holes will cause
serious damage to them like distortions and unbalancing.
Maruha's motto is to avoid opening the holes as much as possible, even if you
need lighter flywheels.
Throughout our elaborate work, the Type-C, with even thickness, becomes mightier
and better balanced.
The average lightweight flywheels that have been sold without any questions
in the tuning market have approximately 4kg, half the weight of the genuine
MIATA.
If you want a hot wild drive like races, these flywheels have some merits
including the improvement of the pickup and of the engine brakes.
But if you do not, are there meanings to lightweight flywheels?
Heavier genuines tend not to be picked up.
When you drop the hammer roughly, they are unable to operate quickly.
They make a steady drive.
Basically, you can drive in the city maintaining an even pace, as opposed to
lighter flywheels, accelerating and slowing down quickly, that make an
uncomfortable ride.
What is the secret to keeping your everyday-use car more comfortable? The
answer is the Type-C.
It is heavier than a great number of lightweight flywheels in the market -
01R(for B6) 5.7kg / 28R(for BP) 6.2kg.
Our products are guaranteed to give you a smooth and stable drive.
When you change the clutch on your car, in addition, Maruha recommends changing
the flywheels.
Well, even if you do not want a wild run, Maruha's Type-C has two big
meanings.
At a reasonable price, your drive becomes more enjoyable.
NO TIME LIKE THE PRESENT.
Once our Type-C is tried, you cannot live without it.
It is easy to see flywheels made from Chrome-molybdenum steel in the tuning
market. Actually, you can find many lightweight Chrome-molybdenum flywheels on
the net, though some of them seem to be fakes. Certainly, it is important to use
the finest material. But whenever you prepare the finest ingredients, everybody
can cook wonderful dishes?
We can say the same about flywheel production. To
exploit the material features, Maruha emphasizes one process.
It is a heat treatment process. The heat treatment improves the toughness and
the anti-galling effect of the Type-C.
A flywheel makes a clutch disk clung firm
to a pressure plate. To complete the task, this process is never missed.
However, in the market, there are Chrome-molybdenum flywheels, slightly or not treated by heat, as improper heat treatment causes distortions. Moreover, saving the costs might be related.
We always manage to make long-life and easy-to-use products. So, the Type-C is in mat gray color. It proves that this flywheel was treated well by heat.
When you drive a car that has been drove for some or more years, it makes odd
sounds.
Do you have such an experience?
These sounds might be a sign of
deterioration of pilot bearings.
The pilot bearing guiding the main shaft of the transmission is pressed into the flywheel.
Small precision balls are inside of
the bearing.
By pressing into the flywheel, the bearing surface becomes
distorted and as the result of it, the balls are forced to be pressured from the
outside. And finally, the bearing moves roughly, even though it rounds smoothly
before being pressed.
Due to their vibrations, hard drives like races make the bearings dropped
from the flywheels.
After races, at the moment of removing the transmissions and
the clutch covers, the bearings have dropped off. For streetcar users,
conversely, it is rare to remove the transmissions from their cars and we need
to design our products to maintain their longer lives.
Maruha's Type-C has good news for pro shops that have accepted that bearings
are never prevented from removing. A stopper, on the center of the Type-C,
prevents the bearing coming out.
The bearing is pressed from the tail side of the crankshaft. By attaching the flywheel on, the tail of the shaft saves the bearing from dropping. Our refinement can help to load the pilot bearing with less power and also avoids its distortion.
Pressing the bearing causes its surface to be distorted and its balls to be
pressured.
This case lets the bearing moved roughly. As a result of it, the
bearing has a short-life span.
Three knock pins, which position a clutch cover, are pressed into a flywheel.
As six bolts fix the cover to the flywheel, indeed, it seems that the pins are
unnecessary.
Why are they installed on flywheels?
The clutch cover has some holes wide enough to penetrate the bolts.
If they have no allowance, the bolts are hard to go through and their threads
become stripped.
Therefore, the holes are slightly larger.
Actually, the knock pins are used to center the clutch.
However, no matter how we check several genuine MIATA flywheels by our 3D
measuring tester, some differences at the positions of the pins are seen among
them, though there is no problem in safety.
They also lead to difficulty attaching the genuine clutch cover.
This rigorous examination can help us to design the Type-C.
We equalize the positions of the knock pins and the pin diameter is changed to
the ideal size.
Some flywheels made by other manufacturers have pin diameters in much smaller
sizes in order that clutch covers can be attached to them without pain, but
there is a problem in centering the clutch.
The Type-C, in contrast, will help you to fix the clutch cover smoothly and to
center the clutch precisely.