Truck & Off-Highway Engineering - June 2023 - 13

TECHNICAL INNOVATIONS
significant alterations to the tread pattern.
The radial's lugs are reportedly
thicker than those on the bias-ply version
that are nearly perpendicular for
maximum traction along the outer portion
of the contact patch. The radial
also features buttressed shoulders for
additional traction.
" The bias tire featured lugs that were
very prominent on the shoulder, " Bisht
explained. " When you look at the contact
patch of a bias tire, it trends towards
the center. So the shoulder of the
tread was never coming into play. To
get any traction we had to increase the
tread depth on the shoulder. "
Bisht continued, saying " With the
radial construction, we can increase the
footprint, provide a flatter cavity, and
increase the tread arc, which will give
the tire a wider face when it is touching
the surface. When we compared this
tire to our bias tire, we found that we
were getting 7% more tire touching that
ground with the same size tire. There is
also less traction dropoff as the [tire]
wears because more of the tire is doing
the work. "
The center portion of the tread lugs
are curved to form an angled overlap,
which according to Yokohama, provides
more steady road manners and
reduced wear at speeds up to 25 mph
(40 km/h). The nose of each lug also
was widened, which produced a
smoother and more stable ride while
also reducing scrub wear when operating
on hard surfaces.
" These tires are used for high torque
application, " said Bisht. " So if you're
using a lug based tire, you have to give
it this strong construction to sustain
that torque. You have to give the lug
base strength, and the lug angle is also
designed to give it the strength to sustain
the load and the torque. "
Bisht also described the self-cleaning
capability of the tread design. " How the
Yokohama announced that the RL52 loader
radial will now be available in the 29.5R25 size.
tire cleans is an agricultural concept, "
he said. " The depth and depression (of
the tread) defines how the tire cleans.
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TRUCK & OFF-HIGHWAY ENGINEERING
June 2023 13
YOKOHAMA

http://info.hotims.com/84503-709

Truck & Off-Highway Engineering - June 2023

Table of Contents for the Digital Edition of Truck & Off-Highway Engineering - June 2023

Truck & Off-Highway Engineering - June 2023 - Intro
Truck & Off-Highway Engineering - June 2023 - Sponsor
Truck & Off-Highway Engineering - June 2023 - CoverA
Truck & Off-Highway Engineering - June 2023 - CoverB
Truck & Off-Highway Engineering - June 2023 - Cover1
Truck & Off-Highway Engineering - June 2023 - Cover2
Truck & Off-Highway Engineering - June 2023 - 1
Truck & Off-Highway Engineering - June 2023 - 2
Truck & Off-Highway Engineering - June 2023 - 3
Truck & Off-Highway Engineering - June 2023 - 4
Truck & Off-Highway Engineering - June 2023 - 5
Truck & Off-Highway Engineering - June 2023 - 6
Truck & Off-Highway Engineering - June 2023 - 7
Truck & Off-Highway Engineering - June 2023 - 8
Truck & Off-Highway Engineering - June 2023 - 9
Truck & Off-Highway Engineering - June 2023 - 10
Truck & Off-Highway Engineering - June 2023 - 11
Truck & Off-Highway Engineering - June 2023 - 12
Truck & Off-Highway Engineering - June 2023 - 13
Truck & Off-Highway Engineering - June 2023 - 14
Truck & Off-Highway Engineering - June 2023 - 15
Truck & Off-Highway Engineering - June 2023 - 16
Truck & Off-Highway Engineering - June 2023 - 17
Truck & Off-Highway Engineering - June 2023 - 18
Truck & Off-Highway Engineering - June 2023 - 19
Truck & Off-Highway Engineering - June 2023 - 20
Truck & Off-Highway Engineering - June 2023 - 21
Truck & Off-Highway Engineering - June 2023 - 22
Truck & Off-Highway Engineering - June 2023 - 23
Truck & Off-Highway Engineering - June 2023 - 24
Truck & Off-Highway Engineering - June 2023 - 25
Truck & Off-Highway Engineering - June 2023 - 26
Truck & Off-Highway Engineering - June 2023 - 27
Truck & Off-Highway Engineering - June 2023 - 28
Truck & Off-Highway Engineering - June 2023 - 29
Truck & Off-Highway Engineering - June 2023 - 30
Truck & Off-Highway Engineering - June 2023 - 31
Truck & Off-Highway Engineering - June 2023 - 32
Truck & Off-Highway Engineering - June 2023 - 33
Truck & Off-Highway Engineering - June 2023 - 34
Truck & Off-Highway Engineering - June 2023 - 35
Truck & Off-Highway Engineering - June 2023 - 36
Truck & Off-Highway Engineering - June 2023 - 37
Truck & Off-Highway Engineering - June 2023 - 38
Truck & Off-Highway Engineering - June 2023 - 39
Truck & Off-Highway Engineering - June 2023 - 40
Truck & Off-Highway Engineering - June 2023 - 41
Truck & Off-Highway Engineering - June 2023 - 42
Truck & Off-Highway Engineering - June 2023 - 43
Truck & Off-Highway Engineering - June 2023 - 44
Truck & Off-Highway Engineering - June 2023 - 45
Truck & Off-Highway Engineering - June 2023 - 46
Truck & Off-Highway Engineering - June 2023 - 47
Truck & Off-Highway Engineering - June 2023 - 48
Truck & Off-Highway Engineering - June 2023 - 49
Truck & Off-Highway Engineering - June 2023 - 50
Truck & Off-Highway Engineering - June 2023 - 51
Truck & Off-Highway Engineering - June 2023 - 52
Truck & Off-Highway Engineering - June 2023 - 53
Truck & Off-Highway Engineering - June 2023 - 54
Truck & Off-Highway Engineering - June 2023 - 55
Truck & Off-Highway Engineering - June 2023 - 56
Truck & Off-Highway Engineering - June 2023 - 57
Truck & Off-Highway Engineering - June 2023 - 58
Truck & Off-Highway Engineering - June 2023 - Cover3
Truck & Off-Highway Engineering - June 2023 - Cover4
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