Long Life Specification

Machined Type Needle Roller Bearings
NEWLonger-lived bearings
further increase equipment reliability!

Bearings for a new age:is proud to present
Long Life Needle Roller Bearings!

Realizing life more than 5 times longer's long life specification Machined Type Needle Roller Bearings have enhanced surface hardness and toughness thanks to a
newly developed heat treatment, suppressing the generation and growth of damage from the surface and realizing dramaticallylengthened life in environments with stringent load conditions or lubrication contaminated with foreign substances.
Life comparison testing with standard heat-treated products reveals vastly extended life of more than 5 times that of thestandard products.

Applicable production size

Life data
99

With inner ring

Without inner ringFw =14 〜 85mm

d =10 〜 75mm
NANA
TAFI
TRI

4900 〜 4915
6901 〜 6915
102216 〜 7510535
153320 〜 7510845

RNARNA
TAF
TR

4900 〜 4915
6901 〜 6915
142216 〜 8510535
203320 〜 8310845

Long Life Specification Machined Type Needle Roller Bearings are prepared based on usage.
If needed, please contact.

 NIPPON THOMPSON CO., LTD.
Tokyo (Japan):Tel. +81 (0)3-3448-5850

 IKO INTERNATIONAL, INC. (U.S.A.)
NewJersey
Illinois
Minnesota
California
Santa Clara (Silicon Valley)
Georgia
Texas:Tel. +1 973-402-0254:Tel. +1 630-766-6464:Tel. +1 952-892-8415:Tel. +1 562-941-1019:Tel. +1 408-492-0240:Tel. +1 770-418-1904:Tel. +1 972-929-1515

 IKO THOMPSON BRAZIL SERVICE CO.,LTD. (BRAZIL)
Sao Paulo

Gentle to The Earth:Tel. +55-(11) 2186-0221

Cumulative damage rate %dFw

Standard heat-treated products
80Long life spec products

5020105Model number: NA4904
Load: 10,500 N
Lubrication: Cleaning oil lubricated1110:Tel. +31 (0)10-462 68 68:Tel. +49 (0)211-41 40 61:Tel. +49 (0)941-20 60 70:Tel. +49 (0)6821-99 98 60:Tel. +44 (0)1908-566144:Tel. +34 949-26 33 90:Tel. +33 (0)1-48 16 57 39

 IKO-THOMPSON (SHANGHAI) LTD. (CHINA)
Shanghai
Beijing

1,000

10,000This chart shows the results of life testing under load conditions 50% of the basic dynamic load rating.
The long life specification with special heat treatment shows L10 life 5 times or more that of the standard heat-treated products.

 NIPPON THOMPSON EUROPE B.V. (EUROPE)The Netherlands
Germany
Düsseldorf
Regensburg
Neunkirchen
United Kingdom
Spain
France100
Life h:Tel. +86 (0)21-3250-5525:Tel. +86 (0)10-6515-7681

Guangzhou
Wuhan
Xi'an
Shenzhen
ChengduNingboQingdao
Shenyang:Tel. +86 (0)20-8384-0797:Tel. +86 (0)27-8556-1610:Tel. +86 (0)29-8882-3225:Tel. +86 (0)775-2265-0553:Tel. +86 (0)28-6250-5159:Tel. +86 (0)574-8718-9535:Tel. +86 (0)532-8670-2246:Tel. +86 (0)24-2334-2662

 IKO THOMPSON ASIA CO., LTD. (THAILAND)
Bangkok (Thai):Tel. +66 (0)2-637-5115

 IKO THOMPSON KOREA CO., LTD. (KOREA)
Seoul:Tel. +82 (0)2-6337-5851• The specifications and dimensions of products in this catalog are subject to change without prior notice. • When these products are exported, theexporter should confirm a forwarding country and a use, and, in case of falling under the customer's requirements, take necessary procedures suchas export permission application. • Although all data in this catalog has been carefully compiled to make the information as complete as possible,NIPPON THOMPSON CO., LTD. shall not be liable for any damages whatsoever, direct or indirect, based upon any information in this catalog.
NIPPON THOMPSON CO., LTD. makes no warranty, either express or impiled, including the impiled warranty of merchantability or fitness for aparticular purpose. • Reproduction and conversion without permission are prohibited.

http://www.ikont.co.jp/eg/CAT-2941E 2018.06