MECHANICAL POWERTRAIN COMPONENT REPORT
THE 2011 DIESELPROGRESS MECHANICAL POWERTRAIN
A digest of some of the latest news from powertrain component and system suppliers.
For more complete information, please visit Diesel Progress OnLine at www.dieselprogress.com.
Allison has introduced a new twin-countershaft automatic transmission
for heavy-duty tractors used in over-the-road applications. More information on the TC10 transmission can be
found elsewhere in this issue.
Allison said it has added a new
optional provision for a ground-driven
pump to its 4000 Series transmission
to ease the installation of emergency
steering systems that are a requirement for most European 8x4 dump
trucks. Allison now also offers a second “deep reverse” gear in addition to
the standard reverse gear, exclusively available on 4700 and 4800 Series
seven-speed models. The additional
gear provides greater control and
engine braking during operation
on steep grades and for increased
maneuverability when operating in
confined spaces, Allison said.
The 5620 and 6620 commercial
transmissions have been recently
introduced to respond to changes
in engine characteristics that are
increasingly prevalent in the construction sector. Greater use of digital
control for engines delivers sharper
torque response through the driveline,
necessitating upgrades to protect the
drivetrain. The lock-up clutch, turbine
shaft, turbine hub and flywheel benefit from design, manufacturing and
material upgrades to further improve
maintenance costs and reduce downtime, Allison said. The transmissions
have also received software updates.
In mid-2010, Allison dedicated a
new hybrid manufacturing plant in
Indianapolis, Ind. Once fully operational, the facility will be capable of produc-ing more than 20,000 commercial-duty
hybrid propulsion systems each year.
The new plant represents a $130 million investment, the company said.
Allison also announced plans to
build a new advanced manufacturing
plant in Szentgotthard, Hungary. The
new facility is expected to produce
3000, 4000 and Torqmatic Series fully
automatic transmissions for Europe.
Auburn’s Model 70CD is a new compact
planetary drive that can accept several
types of plug-in hydraulic motors.
Auburn Gear introduced two new
products for mobile off-highway applica-
tions at ConExpo-Con/Agg. The Model
70CD is a new compact planetary
drive that incorporates a new geartrain
design and is available with a fully
integrated parking brake. It is designed
to accept several different cartridge-
style (plug-in) hydraulic motors and is
available with a maximum intermittent
output torque rating of 70,000 lb.in. and
a broad range of ratios.
At the beginning of the year, Carlisle
Brake & Friction began operations
from its new global headquarters in
Solon, Ohio, at the site of the former Wellman Products Group. In late
2010, Carlisle completed its purchase
of Wellman from the Hawk Corp.
With that acquisition, Carlisle now
offers a range of friction products,
including friction materials for clutches,
dry and wet brake systems, transmissions, motion control systems and
structural components. Products for
off-highway applications are sold under
the Wellman Products, Carlisle, Hawk
Performance, Japan Power Brake,
Velve Touch and Field Pro brands.
Comer has introduced new S-128
differential axles, an evolution of its