What problems
might you run into during development?
What problems
might you face in production?
If there are
problems in the field how much will your company
image suffer?
...And how long will it
take you to find and fix the source of the
problem?
Will
customers who purchased a defective product take
a chance on your company's product again?
Will your gear
supplier know enough about applied gear
technology to avoid problems?
Will your gear
supplier be
capable enough and willing to help you resolve
problems when (not if) they happen... even if
the gears themselves are not directly the
problem?
Is that too
much to
consider just to purchase gear components?
"The truth
is that gears are at the heart of your geared product's perceived
value."
If your product is noisy...
chances are it's got something to do with the gears.
If your product has excessive
vibration... chances are the gears are involved.
If your product fails
prematurely... could also be a gear problem.
There are basically 2
types of gear problems:
1.
problems with the gears
Manufacturing a quality gear is more than a
science. It's an art... some black magic
and a lot of well kept
secrets that can only be learned the hard way...
especially in production volumes!
Otherwise you could just put some CNC machines
in your garage (or China) and go to town
couldn't you?
2.
problems with the way a good gearset functions
in the application
Many times it's not
even the gears themselves that are the source of
the trouble. It's the way they
interact with the rest of the application.
When noise or vibration is detected the finger
is often pointed at the gear supplier who
shrugs his shoulders because "Our gears are
made to spec."
Unless you find someone who
knows how to properly analyze the problem you could waste
countless months and company dollars trying to track it down
and still not find the answer... your company's reputation
at stake with every passing moment.
"My experience with Nissei has
been very satisfactory. When we
had a problem with a spiral
bevel gear set, they responded
quickly. With their help, we
found that the problem component
was our angle head and not the
gears from Nissei. Their
commitment to customer support
allowed us to resume production
in a timely manner."
Design Engineer
Nissei 30+ years
customer
Nissei has been a world
leader in manufacturing accurate, custom gear products for
decades.
Our focus isn't only on our
plant floor. We are equally concerned with your
success and your company's presence in the market place.
When you look good... we feel good.
We've seen a lot of problems
in the last 50 years. Some were pretty easy to resolve.
Others helped make us a superior partner through the lessons
learned. We dole this experience out on a
regular basis so that our customers can focus on moving
forward... not chasing gremlins.
The first service we will
provide to you is consultation to ensure that the gear
design is appropriate for your company's application.
Some of our customers have very
capable engineers with gear experience. In these cases
where advanced consultation is not necessary we simply do
whatever possible to offer support.
Other customers are struggling
to understand the complicated mechanics involved with gear
design because there are limited in-house resources.
In these situations we try to help mentor the design
engineers and help bring them up to speed on relevant gear
design so that they are better equipped to handle their
company's demands.
Many times we are requested to
quote gear designs that are over-engineered. Obviously
in this case we can realize higher margins but we
are more concerned with making sure the gear set is designed
to meet your needs. No more, no less.
We lend our expertise to the
other extreme as well... when someone is needed to detail
the part drawings and specifications.
Nissei manufactures about
2,000,000 gear parts every month and we are our own biggest
customer.
Nissei has two divisions.
The gearmotor division designs and manufactures
high quality gear motors. And for the gears we trust
only ourselves to support our high standards of quality and
reasonable cost.
Our gear division is
vertically integrated to handle everything from cutting the
blank to heat treatment and tooth grinding operations.
This gives us the ability to cost-effectively measure and
ensure quality at every step.
Check
the appropriate box below to learn more about Nissei's...
Gears
Spiral
Bevel Gears
Spiral Bevel Gears
Spiral Bevel Gears are to straight bevel gears what a helical
gear is to a spur gear.
Spiral Bevel Gears supersede straight bevel gears where
greater strength, higher speed and/or less noise is needed in an
angle gear set.
In order to get better performance out of a parallel shaft
application a helix angle is introduced in the
straight tooth. This helical tooth shape gets more teeth
engaged,
which results in a gear set that can operate under greater loads
at higher speeds without excessive noise.
In the same way a spiral angle can be introduced in a bevel
tooth form, which allows more tooth engagement and load sharing.
Spiral Bevel Gears are recommended when speeds exceed 1000
RFM or 1000 SFPM.
With the right tooth form and equipment Spiral Bevel Gear
teeth can also be ground for greater accuracy resulting in even
less noise and vibration.
Nissei is capable of supplying low cost ground-tooth Zerol®,
spiral and hypoid pinions and gears. This is made possible by
Nissei's super abrasive grinding technology using "CBN" plated
grinding wheels.
Nissei's Spiral Bevel Gears are available up to:
M-8.0, 3.0 D.P., 12" P.C.D.
Use the form below to tell us about
your gear needs. You may also upload any related files such as
prints, RFQ's, etc... If you have more than one file to upload
please compile them into a .zip file. This can be done by simply
holding the control key, selecting all the files, right clicking and
selecting "send to zip" (windows).
Straight Bevel Gears are the
oldest, the simplest and most widely used of all bevel gears.
Originally, straight bevel gears were produced with full
length and depth contact. This means that the straight bevel gear and
pinion contacted with each other over the full tooth surface
even at light load.
This
line contact pattern doesn't allow much room for error in
assembly before noise, vibration and premature failure are
introduced.
Nissei manufactures straight bevel gears using Gleason
Coniflex® machines. The
Coniflex® method introduces
lengthwise and profile crowning. Crowning of the gear tooth allows
localization of the contact pattern (relieves sensitivity to
concentrated edge loading).
This makes the gears easier to assemble and gives the straight bevel gear
better performance.
Nissei's Coniflex®
Straight Bevel Gears can be used in applications with speeds up to 1000 FPM
or 1000 RPM.
Nissei's Straight Bevel Gears are available up to:
M-8.0, 3.0 D.P., 12" P.C.D.
Use the form below to tell us about
your gear needs. You may also upload any related files such as
prints, RFQ's, etc... If you have more than one file to upload
please compile them into a .zip file. This can be done by simply
holding the control key, selecting all the files, right clicking and
selecting "send to zip" (windows).
Zerol®
Bevel
Gears
Zerol® Bevel Gears
Zerol® Bevel Gears are "sort of" a cross between straight bevel
gears and spiral bevel gears.
The Gleason Works developed the Zerol®
tooth form as a replacement for straight bevel gears that
could be produced on spiral bevel gear machinery. There is
greater control of the tooth contact pattern with Zerol®
bevel gears than with straight bevel gears.
Zerol® bevel gears offer
the same minimal axial thrust as straight bevel gears allowing
the most compact and low cost bearings.
An added benefit of the Zerol tooth over the straight bevel
tooth is that it can be ground.
Nissei is capable of supplying low cost ground-tooth zerol,
spiral and hypoid pinions and gears. This is made possible by
Nissei's super abrasive grinding technology using "CBN" plated
grinding wheels.
Nissei's
Zerol Bevel Gears are available up to:
M-8.0, 3.0 D.P., 12" P.C.D.
Use the form below to tell us about
your gear needs. You may also upload any related files such as
prints, RFQ's, etc... If you have more than one file to upload
please compile them into a .zip file. This can be done by simply
holding the control key, selecting all the files, right clicking and
selecting "send to zip" (windows).
Hypoid
Gears
Hypoid Bevel Gears
Hypoid Bevel Gears can be thought of as a "kind of " spiral bevel gear.
Spiral bevel gear and pinion axes intersect where they cross
each other in the same plane. Hypoid axes, on the other
hand, do not intersect each other where they cross. The
hypoid pinion centerline is not in the same plane as the hypoid
gear centerline. they are offset from each other.
This offset introduces 2 potential advantages:
Ergonomically it is better suited to some applications
such as the rear axle on an automobile. The pinion offset
lowers the drive shaft being less intrusive to the passenger
space.
The pinion offset also requires the pinion to be larger,
which results in a stronger pinion and allows for more gear
teeth to be in engagement and improved motion transmission
and load sharing.
Nissei is also capable of supplying low cost ground-tooth Zerol®,
spiral and hypoid pinions and gears. This is made possible by
Nissei's super abrasive grinding technology using "CBN" plated
grinding wheels..
Nissei's
Hypoid Bevel Gears are available up to:
M-8.0, 3.0 D.P., 12" P.C.D.
Use the form below to tell us about
your gear needs. You may also upload any related files such as
prints, RFQ's, etc... If you have more than one file to upload
please compile them into a .zip file. This can be done by simply
holding the control key, selecting all the files, right clicking and
selecting "send to zip" (windows).
HRH
(The Worm Killer)
High Ratio Hypoid Gears
High Ratio Hypoid Gears are a modified hypoid gear.
The H.R.H. is a modified Hypoid with a maximum
ratio of about 1:360. It can replace the worm in many
applications but is much more compact and
efficient.
Nissei has developed a whole line of gear motor
products around this gear design and currently supplies this
gearset for applications such as: Automotive Power Steering
Assist,
Index Table Drives, etc...
Nissei is capable of supplying low cost ground-tooth Zerol®,
spiral and hypoid pinions and gears. This is made possible by
Nissei's super abrasive grinding technology using "CBN" plated
grinding wheels.
Nissei's High Ratio Hypoid Gears are available up to:
M-3.0, D.P.-8.0, P.C.D.-10"
Use the form below to tell us about
your gear needs. You may also upload any related files such as
prints, RFQ's, etc... If you have more than one file to upload
please compile them into a .zip file. This can be done by simply
holding the control key, selecting all the files, right clicking and
selecting "send to zip" (windows).
Spur/Planetary
Gears
Spur Gears
Spur Gears are the most common type of gear in use.
The spur gear is manufactured on a cylindrical
blank and is used in applications where input and output are in
parallel planes. The teeth generally have full-face
contact though length-wise crowning is possible.
Spur gears are used to drive externally where
the pinion and gear mating surfaces are located on the outside
diameter or they drive internally where the outside diameter of
one member drives the inside diameter of the other member such
as in a planetary system.
Spur gears tend to be noisy at higher speeds.
Nissei's Spur Gears are available up to:
M-8.0, 3.0 D.P,. 14" P.C.D.
Use the form below to tell us about
your gear needs. You may also upload any related files such as
prints, RFQ's, etc... If you have more than one file to upload
please compile them into a .zip file. This can be done by simply
holding the control key, selecting all the files, right clicking and
selecting "send to zip" (windows).
Helical
Gears
Helical Gears
Helical Gears are similar to spur gears but the teeth lie at an
angle to the axis.
The helix angle on a helical gear was introduced
to achieve higher performance out of parallel axis gear sets.
The helical tooth form brings more teeth into
mesh than a spur gear is capable of.
This load sharing increases the overall power capability of the
gear set and also allows for quiter, smoother operation at high
speeds.
Nissei's
Helical Gears are available up to:
M-8.0, 3.0 D.P,. 14" P.C.D.
Use the form below to tell us about
your gear needs. You may also upload any related files such as
prints, RFQ's, etc... If you have more than one file to upload
please compile them into a .zip file. This can be done by simply
holding the control key, selecting all the files, right clicking and
selecting "send to zip" (windows).
Worm
Gears
Worm Gears
Worm Gears are used when large gear reductions are needed.
It is common to see worm gear ratios of 20:1 and
even as high as 300:1.
Before deciding that a worm gear is your best
option take a look at Nissei's High Ratio Hyoid. The High
Ratio Hyoid offers the high reduction of a worm set in a smaller, more
efficient package.
Nissei's Worm Gears are available up to M-2.0 in a variety of
sizes and materials.
Use the form below to tell us about
your gear needs. You may also upload any related files such as
prints, RFQ's, etc... If you have more than one file to upload
please compile them into a .zip file. This can be done by simply
holding the control key, selecting all the files, right clicking and
selecting "send to zip" (windows).
Gear
Motors
Gear Motors
Nissei manufactures a series of:
Helical In-line gear motors
Right-Angle Gear motors
Spiral Bevel Gear Boxes
Nissei's gear motor/gear box products were designed in response to the
industrial demand for smaller, lighter, more reliable, and
energy efficient power transmission.
Our Helical and Hypoid gearmotors feature:
Steel carbonitrided and die quenched gears which
translates into longer life.
A selection of 1/50 HP to 3 HP.
9 voltage choices in 50hz or 60hz.
28 ratio choices.
Flexibility in mounting styles-with over 10 mounting
configurations- helical in-line and hypoid right-angle.
Hypoid gearing in our right-angle units is the same
gearing used in an automobile differential- which allows
Nissei Gearmotors to boast the most efficient and durable
right-angle package commercially available!
European and other worldwide voltages are available.
Lubricated for life with high grade synthetic grease and
sealed with machine slip fit "O" rings eliminating costly
downtime for lubrication changes!
Two Year Warranty!
Our Spiral Bevel Gear Boxes feature:
K type
Compact, simple structure with case made of aluminum die
cast
Low noise & high efficiency using spiral bevel gears
with specialty steel that has been case hardened
Flexible installation - any direction acceptable, which
makes it easy to install
Maintenance free - filled with high-grade grease at the
factory before shipment
Reduction ratio - choose 1:1 or 2:1 according to the
application
KN type
Toughness Using - special cast iron for housings and
tapered roller bearing.
Low noise & high efficiency using spiral bevel gears
with special steel that has been case hardened
Various installations - depending on the choice of axle
arrangement
* for standard models, the above condition may not be
applicable
Enclosed lubricant - filled with high-grade oil at the
factory before shipment
Reduction ratio - choose 1:1 or 2:1 according to the
application
Use the form below to tell us about
your gear needs. You may also upload any related files such as
prints, RFQ's, etc... If you have more than one file to upload
please compile them into a .zip file. This can be done by simply
holding the control key, selecting all the files, right clicking and
selecting "send to zip" (windows).
Machining
Equipment
Gear Manufacturing Equipment
Nissei produces about 2,000,000 gear parts each month using
hundreds of gear cutting, grinding machines.
Nissei's ingenious modification and commitment to routine
maintenance ensure the highest quality on a consistent,
predictable basis.
Use the form below to tell us about
your gear needs. You may also upload any related files such as
prints, RFQ's, etc... If you have more than one file to upload
please compile them into a .zip file. This can be done by simply
holding the control key, selecting all the files, right clicking and
selecting "send to zip" (windows).
Inspection
Equipment
Gear Inspection Equipment
Nissei's Gear Inspection Equipment provides the means to
control quality, to document quality and to troubleshoot.
Nissei's Gleason No. 554 Single Flank Roll Tester One of a small number in the world, the no. 554 is equipped with
rotary encoders and a computer analysis package. Rolling
quality can be observed and its’ characteristics
measured and compared independently in “forward” and
“reverse” operation. The parts operate with backlash at
the housing mounting locations, duplicating closely the
actual assembly conditions. The rotary encoders
determine how accurately the gearset delivers uniform
angular motion transmission. The errors are treated
mathematically by the computer to determine the
frequency and magnitude of the associated velocities and
accelerations, of interest for noise and vibration
quality.
Zeiss Three Dimensional Gear Measuring Machine The Nissei machine is equipped with a built in
rotary table, centering column and specialized software.
This co-ordinate measuring machine is specifically
designed for high precision elemental checks of gear
teeth. The surface topography of bevel and hypoid gears
can be inspected and machine setting adjustments
specified to adjust the tooth form to a pre-determined
topography. Precision index checks can be performed with
an optional computer analysis to determine how much of
the accumulated pitch error is attributable directly to
eccentricity alone. This is helpful in diagnosing
applications and manufacturing issues.
Klingelnberg Inspection Facilities The CNC Profile, Lead, Index and Runout test machine
is indispensable for any manufacturer of spur and
helical gears. The machine is used for manufacturing
control and for analysis applications questions.
Use the form below to tell us about
your gear needs. You may also upload any related files such as
prints, RFQ's, etc... If you have more than one file to upload
please compile them into a .zip file. This can be done by simply
holding the control key, selecting all the files, right clicking and
selecting "send to zip" (windows).
About
Nissei
About Us
Nissei Corporation of
America
Nissei Corporation of America was
established in 1995 to provide direct sales and
engineering support to U.S. and European customers who
had previously known Nissei only through trading
partners. We provide a warehouse service and JIT supply
chain management based on your periodic forecast.
Due to Nissei's large production
capacity and tooling inventory we can usually respond
promptly with prototype parts, typically within six
weeks ready to ship from your order placement.
Nissei Corporation
Nissei Corporation was started in
March 1941 as a spin-off of the Brother Corporation.
Nissei's original role was as a manufacturer of precision
machined components for Brother sewing machines. Nissei
Corporation has evolved to become one of largest gear
manufacturers in the world manufacturing fine-pitch
gears by the mid-1950s and die castings by the
mid-1960s. These technologies and know-how were then
combined in the production of gearmotors. The Gear
Products Division, producing two million gears per
month, and the Transmission Equipment Division,
producing gearmotors and gear reducers, comprise Nissei
Corporation today.
Use the form below to tell us about
your gear needs. You may also upload any related files such as
prints, RFQ's, etc... If you have more than one file to upload
please compile them into a .zip file. This can be done by simply
holding the control key, selecting all the files, right clicking and
selecting "send to zip" (windows).
If your
company can afford to get it wrong keep searching.
But if your customers expect products that
work fill out the short
form below so that we can help you get to market quickly,
effectively and affordably.
"Nissei Gear has
proven to be a “Top Notch” supplier for our Bevel Gears. Their commitment to
quality and responsiveness to delivery requirements has been recognized by our
Operations Team."
Sourcing Team Leader
Nissei Customer for 2
years
Use the form below to tell us about
your gear needs. You may also upload any related files such as
prints, RFQ's, etc... If you have more than one file to upload
please compile them into a .zip file. This can be done by simply
holding the control key, selecting all the files, right clicking and
selecting "send to zip" (windows).
"The working relationship between
the two companies has been very professional. The open communication has
been an important aspect to the success. We are very happy with the
delivery, service and quality of the products and personnel...
..The quality is world-class and the consistency is impressive."
Motor Manufacturing
Manager
Nissei 30+ year customer
P.S.
The worst thing that could
happen by requesting a free quote is you get to make a more
informed decision about what to do next.
The best thing that could
happen is you find a capable, quality gear supplier who can
support your gearing project from development throughout
production.
