Polyurethane Bushings – Custom Cast Polyurethane
Bushings!
Cast Polyurethane Bushings? You’ve come to
the right place!
Polyurethane
bushings are manufactured at Pepsen from 2004 when
rubber bushings were widely replaced by polyurethane bushings in China. Our
durable custom polyurethane bushings can be molded or machined depending on hardness,
quantity and shape. Polyurethane
bushings have been widely used in vibration isolation applications,
suspensions, mountings and a wide variety of other applications. Pepsen
manufactures urethane bushings for customers over 20 countries. Our
application specific polyurethane formulation got approval from customers for
its great impact and abrasion resistance.
How does polyurethane bushing beat conventional rubber bushing?
Polyurethane is called “The King of Abrasion Resistance”
. Actually, it is more than that, polyurethane outlasts natural rubber 10:1 in wears resistance and
definitely it is most abrasion polymer comparing to all rubber and plastic. Besides
that, the great impact resistance also exceeds most rubber. Some of
polyurethane formulation performance very well in oil resistance and good dynamic
mechanical properties. Custom polyurethane
bushings are not only found in most of the cars and trucks but in most
heavy equipment as well.
What is difference between cast polyurethane bushings and
injection molded ones?
Casting molding and injection molding are two main ways
to make polyurethane bushing. However,
they have totally different raw material, tooling cost, quality and production
efficiency. The material used for casting process is called thermoset
polyurethane while for injection one is thermoplastic polyurethane (TPU). TPU
is famous for its good elongation break as it has linear molecular structure,
so it is usually used for linear products such as TPU belt, tube and T-squeegee.
Thermoset polyurethane has crosslink molecular structure, so it has much better
abrasion and impact resistance. It is well known that tooling cost for injection
is expensive, so it is always used for high volume products that requires
shorter lead time. The post curing process lasts 10-12 hours for casting process
while there is no curing process for inspection. All these make casting
polyurethane an ideal choice for high-quality bushings used in tough condition,
so it will reduce down-time and save money.
Which Applications Can Polyurethane Bushings be Used?
Polyurethane bushings are a great choice for
many applications .Send us samples or your design, and you will get what you
want exactly and inexpensively. In addition to custom cast polyurethane
bushings, we offer wide range metal fabrication (turning, drilling, milling, CNC
machining, metal forming and steel castings) and product design services.
ü Suspension
Bushing
ü Truck
Body Mount
ü Motor
(Engine) Mounts
ü Track
Bar Bushing
ü Engine
Swap Mount Bracket Bushing Inserts
ü Shackle
Bushings
ü Torsion
Bar Mounts
ü Mount
Bushings
ü Sway Bar
End Link bushings
ü Leaf
Spring Bushing
ü Control
Arm Bushings
ü Bump Stops