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CAT. No.E1254a 2005 E-8 Printed in Japan ©NSK Ltd. 2003
Printed on 100% recycled paper.
1
Introduction
As technologies evolve, all manufacturers share a global responsibility
to respect and protect the environment.
NSK Motion and Control products reflect our corporate commitment to being
environmentally responsible. While our products improve the performance of
machines in a variety of industries, they also save energy and conserve resources
because of our superior precision machining technologies.
In order to meet the needs of the highly specialized machine tool industry,
we have enhanced every and all aspects of our R & D capability at our Technology Centers.
As a result, NSK’s precision bearings are also used in a wide variety of industries,
such as semiconductor production and industrial robots, and have
earned a reputation for excellent performance.
NSK’s purchase of RHP (Europe) allowed us to combine our collective
experience and expertise, and to unify our strengths in design. As a result,
our bearings are known for their exceptional accuracy and reliability.
This catalog explains technical materials including our latest research and
experimental data, various applications, the types of precision bearings available,
and the proper utilization of each specific type of bearing.
32
Table of Contents
Part 1. NSK Super Precision Bearings P4–9
Global Network P4
Research and Development P6
Quality and Production P8
Part 2. Features of Precision Bearings P10–29
Metallurgical Technology to Extend Bearing Life P12
Ceramic Rolling Elements P14
Cages P16
Product Range P18
Performance of Each Bearing Type P20–29
Part 3. Selection of Precision Bearings P30–41
Part 4. Bearing Types P42–117
1. Angular Contact Ball Bearings (ACBB) P42–74
2. Cylindrical Roller Bearings (CRB) P76–85
3. Angular Contact Thrust Ball Bearings P86–95
4. Angular Contact Thrust Ball Bearings for
Ball Screw Support P96–103
5. Precision Deep Groove Ball Bearings P104–109
6. Gauges and Oil-Air Lubricators P110–117
Part 5. Technical Guide P118–175
Part 6. Bearing Handling P176–197
Part 7. Appendices P198–210
SUPER PRECISION BEARINGS
Part 1
NSK’s global network means excellent products andsuperior customer service.
NSK has established a
communication system that
links the major markets of the
world in Europe, Asia, Japan,
and the Americas. We use this
highly developed system to
share information, in real time, related to changes and the
trends of each market. As a result, we can react quickly to
meet changing customer needs to supply the best, high quality
products. Our global network
makes NSK a truly global
company. We are able to
transcend borders and other
restrictions to meet the needs of
our global customers.
PeterleeNewarkMaidenheadCorentryWarsawKielceLeipzigDusseldorfStuttgartMunderkingenParisMilanoTorinoBarcelonaIstanbul
Johannesburg
RecifeBelo HorizonteSao PauloSuzanoJoinvillePorto AlegreBuenos Aires
VancouverMontrealTorontoAnn ArborChicagoBenningtonClarindaIndianapolisFranklinLibertySan JoseLos AngelesAtlantaTroyMiamiMexico City
BeijingShanghaiKunshanGuangzhouAnshunZhangjiagangSuzhouDongguanHong KongChangshuChengduSeoulKumiChangwonTaipeiTaichungChennaiBangkokChachoengsaoChonburiPraiBalakongKuala LumpurJohor BahruSingaporeKota KinabaluManilaJakarta
Tokyo ×45×17×4
PerthAdelaideMelbourneBrisbaneSydneyAuckland
5
Global NetworkNSK’s global network is the key to our ability to develop innovative products that incorporate the latest technologies.
4
The network connects each sales branch, distribution center, production facility, and
technology center and enables us to gather the latest information from each location.
Data is instantly accessible to every part of the network, resulting in products of the
highest quality.
Our global system also includes activities such as receiving and processing orders,
shipping products, and supplying technical support.
No matter how difficult or complex the challenge, NSK is able to respond
immediately.
Headquarters
Sales office
Plant
Technical office
Wherever our customers are in the world, our global support network is there.
Our extensive global network is able to receive orders and
supply products anywhere in the world. NSK’s distributors
cover the world, and keep inventory of all critical products in all
the major markets and locations, making it possible to supply
the products to customers without delay. NSK also provides
technical support globally to help
customers determine the best
bearing for each application and
to respond quickly to any
questions and deal immediately
with any problems our customers
may have.
NSK
Customers
Sales Office
Distributors
CHANCE 2 Internet communication
system
This system allows customers to access information such as inventory, products, pricing, technical information, and also to order our products via the Internet. It is also possible to download CAD data and some programs, such as
a bearing life calculation, via the Internet.
PLANETS
This system connects our Product division, Sales division, and Technical division, so that they can support each other and share information in real time.
Engineering SystemProduction System
Sales System
Sister Plant
Vendors
PLANETSPractical Link by AdvancedNSK E-business Technology System
CHANCE@Convenient Helpful Access environmentfor NSK Communication Exchange@
Information systems connect customers to NSK in real time
http://www.nsk.com
Part 1
7
Research & DevelopmentCommunicating through our global network, the Technology Centers in Europe, The Americasand Japan engage in a continual exchange of ideas, reflecting NSK’s extensive commitment toresearch and development.
6
NSK’s key technology is Tribology (the study of the friction and wear).
By decreasing friction and wear, it is possible to save energy and conserve resources, thus
preventing machine failures and increasing reliability. NSK operates three Technology
Centers located in Europe, the USA and Japan. They concentrate on Tribology as a means
to develop innovative new technologies. Each Technology Center supports the customers
in its region and all three communicate continually via our global network to share new
information and findings.
The Technology Center in Japan acts as a direct support to Asian customers. It is also the
center that systematically gathers information on market needs in Europe, Asia and
the Americas to identify emerging needs and market trends so that NSK can
aggressively develop the next generation of products.
Analysis Technologies
Evaluation Technologies
Material Technologies
Lubrication Technologies
Bearing Technology Center(Japan)
American Technology Center(USA)
European Technology Center(England)
Proposing a new approach to value New technology development
NSK is developing four basic technologies, Analysis,
Materials, Lubrication, and Evaluation. Using these
technologies, NSK produces new products that satisfy the
unique requirements in each application. This approach
provides real value to our customers.
Custom products for unique customer applications
Each Technology Center works closely with our customers to
determine their precise application needs. In doing so we can
help them identify the right NSK product for each application
so they receive maximum efficiency and cost effectiveness.
Upon request, we can also supply completely customized
products to satisfy highly specialized customer needs.
Technology Center customer support
In addition to basic research, each Technology Center
provides technical support to the customers in its region.
As a result of this support, our customers are able to use
NSK’s products in their best condition and achieve their
best performance.
T R I B O L O G Y
Part 1
9
Quality & ProductionWe employ the latest manufacturing technologies and quality control procedures to produceproducts that are recognized as having the highest degree of accuracy in the world.
8
NSK precision bearings deliver the highest level of quality because of our production capability, state of the art
equipment, extensive manufacturing expertise, and our commitment to applying the same rigorous quality control
procedures at every stage of the production process in every NSK facility.
Global production in England and Japan
NSK’s precision bearings are made in both England and
Japan. The combined expertise of these manufacturing
facilities, and their global locations allow us to meet every
customer need.
Complete quality control and environmental responsibility
As an ISO 9001 certified company,
every NSK manufacturing facility
adheres to the same strict
standards for quality control.
Frequent quality checks are one
part of the production process to
ensure that all our products
maintain the same high level
of quality.
Our company has also received
ISO 14001 Certification and all our
facilities operate to the highest
level of environmental
responsibility.
NSK’s symbol
NSK’s golden box is
your assurance of
the absolute highest
level of quality.
Manufacturing technologies toproduce high accuracy products
To maintain our reputation for
manufacturing precision bearings
with the highest degree of
accuracy in the world, all
precision bearings are checked
nanometer accuracy.
NSK Fujisawa PlantNSK Newark Plant
ISO 14001 Certification
Machining Process (Fujisawa Plant)
Inspection Process (Fujisawa Plant)
Bearing Production (Newark Plant)
Newark Plant
F U T U R E P R O D U C T S
ISO 9001 Certification
Courtesy of NASDA(National Space Development Agency of Japan)