Driving forward

NAF, a leading producer of modular-minded axles, is
dedicated to providing value-adding solutions to its
customers worldwide for use in heavy-duty vehicle
applications. Family-owned axel manufacturer NAF was
founded in Germany in 1960 and is still run by the
Weyhausen-Sauer family to this day. Today, NAF is a
properous medium sized company, a typical hidden
champion for bogie axles. NAF has added a dedicated
research and development centre in Munich and it has
founded sister companies in Russia and North America.
With its focus on modular-minded axles, NAF is a
specialised axle factory that produces various axles and
gearboxes for many different self-propelled machines
and off-road applications, including forestry, agriculture,
mining, materials handling, construction and airports.
NAF’s rigid and steering axles’ payload ranges from
6-70 tons in various sizes and dimensions for all kinds of
self-propelled working machines.
NAF is the only supplier able to offer a payload range
between 10-50 tons payload for bogie axles and a
wheelbase in several steps between 1,300mm and
1,980mm. Instead of two single rigid axles, the bogie
axle offers much better utilisation in rough terrain due
to its independent oscillating bogie housings. With high
flexibility in its own machining capacity, NAF can offer
each customer a solution, depending on the type of
application. NAF can easily realize customized drive
solutions based on standard components. This helps to
reduce development time, as well validation from the
customer´s side about the prototype machine.

Varying solutions
With NAF´s modular system it is possible to combine
technical highlights like a planetary gear drive with a
patented and self-cooled turbo brake, as well as a multiple disc differential lock for perfect traction control.
The steering axles could be offered in different sizes and
variations and optional with an adjustable track width,
especially used in agriculture applications.
Bogie axles in particular represent an important
growth area for NAF, particularly large sized ones. NAF’s
TAP 89 bogie axle can cover a 50-ton payload (such as a
rear axle for articulated dump trucks) or can be used in high-powered motorgraders.
Different product highlights are available across the
whole range of NAF bogie axles, such as geared bogie
drives, casted designs, oil-immersed disc brakes and
various designs of differential lock systems. Axle
fixations can be made according customers’ demands.
NAF is ahead of the game, providing an option of a
patented permanent bogie balancing systems (PBBS),
that are capable of equipping a whole range of bogie
For agriculture harvesting machines NAF has
developed a direct driven rear steering axle to provide
heavy machines with additional pulling power during
field operations. The combination, which has one
centralized hydraulic motor that uses the ratio in the
axle, can easily out-perform two-wheel motors in terms
of cost savings and control.
Some add-ons are requested by customers
specifically in the agriculture sector. Examples include
tire inflating systems, hydraulic pipes, cable sets
including those with sensors, centralized greasing
systems, reflectors and labels. All kinds of customer
requirements can be realized by NAF, who is always able
to give customers a ready-to-use product.
In addition to serving key sectors in the industry
– forestry, agriculture and construction – NAF also provides ready-to-use load axles with hydraulic or electric motors, suitable for use with materials handling
machines and harbour cranes.


Source: IVT China, July 2019