High Reliability Single Row Cylindrical Roller Bearings

ROBUSTRIDETM

Ultra high speed single row cylindrical roller bearings with newly developed cage

Feature1. Simplify the mounting process

Adaptation of wide range clearance after mounting allows random matching

method in cylindrical bore type

2. Improvement of reliability with grease lubricationWith the adoption of the new cage the time of grease running in is shortened,

the durability of the grease lubrication is improved

CAT. No.ESP-161102 2016 X-11 Printed in Japan©NSK Ltd. 2016

NSK Ltd. has a basic policy not to export any products or technology designated as controlled items by export-related laws. When exporting the products in this brochure, the laws of the exporting country must be observed. Specifications are subject to change without notice and without any obligation on the part of the manufacturer. Every care has been taken to ensure the accuracy of the data contained in this brochure, but no liability can be accepted for any loss or damage suffered through errors or omissions. We will gratefully acknowledge any additions or corrections.

Adaptation of wide range clearance after mounting

With the adoption of the new cage, the time of grease running-in is shortened

∆r

Adoption of residual clearance range about three times that of a conventional bearing

Adoption of cylindrical shaft reduces the clearance adjustment process

ROBUSTRIDE™

Cylindrical bore

∆r

Tapered bore

Conventional bearing

Clearance adjustment

process is required

40s2.5s15s2.5s

n x 10cycle

1minute of 1 cycle

0

Bearing:N1011Cooling:No coolingLubrication:MTE greaseResidual radial clearance:+3μmRunning-in method:IntermittentRotation speed:1,000min-1 Step-up

Test condition for grease running-in evaluation Temperature change of intermittent running-in operation

Stop Maximum rotating

40

35

30

25

20

15

10

5

0

Tem

p.（℃）

0 2 4 6 8 1210

Time(h)

Sp

eed

(min

-1)

0

4,000

8,000

12,000

Intermittentrunning-in

Grease running-in is completed in 2 hours