High Reliability Single Row Cylindrical Roller Bearings ... · Ultra high speed single row...
Transcript of High Reliability Single Row Cylindrical Roller Bearings ... · Ultra high speed single row...
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