Weddle ring and pinion gears offer the Klingelnberg
Palloid System in their manufacturing process, the best available for strength
and durability. This is that you'll want for a long lasting transaxle.
The Klingelnberg Advantage:
Klingelnberg Palloid gears sets are used in many
demanding fields of applications, including stationary gearboxes for high tech
machinery and in automotive applications where large amounts of torque and shock
loading must be delivered through the gearbox and differential section.
This is because the Klingelnberg Palloid design offers some significant
advantages that justify the higher productions costs. Some of these
Strength: Klingelnberg Palloid gears
have a parallel slot with, which allows a fully rounded root region with the
maximum possible root radii. This greatly improves resistance to bending
stress and tooth fatigue. The small radius of the lengthwise curvature of
the teeth and the high tooth contact ration provided by the unique hobbing
motion of this system significantly increases the load carrying capacity of the
gear set while the true involute tooth form makes Klingelnberg Palloid gears
less sensitive to gearbox and shaft deflections (case flex and shaft flex).
In addition, it is possible to design gears with increased helix angle when
necessary for certain applications. Since it's inception, low sensitivity
to deflection and high break-point capabilities have established this method as
an effective means of preventing failures in highly stressed gearbox assemblies.
In some applications, Klingelnberg Palloid gear sets can provide up to 25%
more strength in the same size package.
Accuracy: Teeth are generated purely
by rolling motion of the hobs, which insures a high degree of tooth form
accuracy. The generating process is theoretically exact and
calculations of the tooth shape is relatively simple compared to the cutter head
generated designs. Even under high volume production conditions, the
combinations of continuous indexing and a single-lead hob results in very
accurate tooth forms.
Long Gear Life: The Klingelnberg
Palloid method results in extremely smooth running gear sets. The unique
hobbing process provides a slightly scaly surface structure, which provides
excellent lapping conditions, provides an oil pocket effect and enhances the
inherent smooth rolling motion of the gear teeth. These features, combined
with a high tooth contact ratio, insure a long service life.
Quiet Operation: A combination of
factors, including a high degree of tooth form accuracy, a high tooth contact
ratio, and the fact that involute tooth forms are relatively insensitive to
deflections and mislocations during final assembly of the gearbox, insure that
Klingelnberg Palloid gear sets exhibit extremely good noise behavior, even when
conditions are not ideal.
Weddle ring and pinion gears are available for
all Mendeola transaxles, including the S4, S4D (11.5" ring gear), S5, S5D (11.5"
ring gear), and MD4E.