Why SKF? SKF Explorer sealed spherical roller bearings

Product featuresMade of patented SKF Xbite steel•

Higher load-carrying capacity•

Minimized need for maintenance•

Minimum lubricant consumption•

Reduced vibration and noise levels•

User benefitsIncreased uptime and productivity•

Minimum maintenance and operating •costs

Increased power output•

Reduced warranty costs•

Reduced grease consumption•

Safer workplace•

Space saving•

Environmentally friendly•

Common applicationsElevators, escalators•

Electric motors•

Mining and construction equipment•

Textile machinery•

Fluid machinery•

Marine industry machinery•

Food processing machinery•

Steel manufacturing equipment•

Continuous casting•

Conveyors•

Cranes•

By design, SKF spherical roller bearings can accommodate very heavy radial and heavy axial loads in applications prone to misalignment or shaft deflection.

In addition, the efficient contact seals and factory-filled high quality grease make them ready-to-use units that are lubricated for life in most applications.

SKF Explorer spherical roller bearings provide a significant improve-ment in key operational parameters. These bearings are so advanced that they can last several times longer than their rivals under typical heavy-duty conditions. This is especially true for the SKF sealed bearings, where the extraordinary seal performance leaves competition far behind.

Proven seal performanceThe well-proven double-lip seals provide optimum protection against solid conta-minants and moisture.

Powerful, patented SKF Xbite steelSKF Explorer bearings are made of SKF Xbite heat-treated steel – an extremely clean, reduced-oxygen level steel that pro-vides greater strength, surface hardness and dimensional stability at high temperatures; features leading to extended service life.

Higher surface hardness results in reduced wear, leading to extended service life.

Better racewaysSKF Explorer spherical roller bearings feature an improved raceway surface finish that maxi mizes lubricant effectiveness for a smoother, cooler running bearing that lasts longer.

A wide range of sealed bearings for many applicationsSKF offers the industry’s widest range of standard sealed spherical roller bearings, starting at 25 mm bore diameter. Availability equals that of corresponding open bearings.

Arizona dust test

01

5

7

0,02 0,12

2

6

43

6,64Dust particle ratio in grease, %

SKF BS2- – Competitor bearings – 2214-2CS

SKF BS2- – Competitor bearings – 2214-2CS

0,1

0,2

0,5

1,0

2,0

5,0

10

20

50

k = 0,1

hc

aSKF

PPu

k = 4

Cooler running means higher lubricant viscosity. This in turn improves the viscosity ratio (k), resulting in extended bearing service life (askf).

SKF TQ-line

Water spray test

02

10

1416

1,21 2,064

12

86

13,38

Water ratio in grease, %

® SKF is a registered trademark of the SKF Group.

© SKF Group 2008The contents of this publication are the copyright of the publisher and may not be reproduced (even extracts) unless permission is granted. Every care has been taken to ensure the accuracy of the information contained in this publication but no liability can be accepted for any loss or damage whether direct, indirectw or consequential arising out of the use of the information contained herein.

Publication 6546 EN · May 2008 · Printed in Sweden on environmentally friendly paper.

An SKF Documented Solution spe cial ist can show you the ap proxi mate return on invest ment (ROI) you can expect to receive by using this product in your ap pli ca tion. Ask your SKF Author ized Distributor or SKF representative for more details.

SKF BS2- – Competitor bearings – 2214-2CS

1,5

1,0

0,5

0

Total bearing wear, g

Previous SKF Xbite bainite bainite

SKF Xbite heat treatment provides excellent crack resistance to the bearing rings. If, against all odds, a ring would crack, SKF Xbite also provides early warning of ring damage, mak-ing it possible to avoid unexpected machine breakdown.

Martensite SKF Xbite

Time

skf.com

Documented Solutions Proven