GCAA MANAGEMENT WORKSHOP

1. GCAA MANAGEMENT WORKSHOP INCREASED BEARING PERFORMANCE WITH PROPER SHAFT MOUNT AND SEALS

2. Why do bearings fail? • A – Lubrication Contamination • B - Mounting • C - Miscellaneous • D - True Fatigue

3. What Seals Do... Minimize Bearing Failures with the Proper Seal • Keep Contaminants Out • Keep Lubricant In

4. Good Seals Should • Operate on hardened and ground surface • Not be forced out during relubrication • Be easily removed without bearing disassembly • Be capable of handling the full misalignment capability of the bearing

5. Basic Seal Types Clearance Seals • Z-Seal (Rexnord) H-Seal (Link-Belt) • All metal construction • High Speed • Excellent Abrasion Resistance • High Temperature • Full Misalignment Capability • Low Drag • Disadvantages • Fine materials and liquids can pass by seal • Heavy vibration can cause metal parts to wear H-SEAL Z-SEAL

6. Basic Seal Types Light Contact Lip Seals • K-Seal (Rexnord) • High Speed Capable • Contact Lip Seal • Seals against contaminants • Very good in Vibratory applications • Full Misalignment Capability • Disadvantages • Seal lip pressure causes higher operating temps • Temp limit of 250° because of Buna-N rubber • Chemicals can affect Buna-N K-SEAL

7. Basic Seal Types Heavy Contact Single Lip Seal • M-Seal (Rexnord) E-Seal (Link-Belt) • Heavy Contact Seal • Seals against fine materials and liquids • Great for vertical shafts • Full Misalignment Capability • Disadvantages • Seal lip pressure results in higher operating temps • Speed is limited • Temp limit 250° because of Buna-N rubber • Chemicals can affect Buna-N rubber M-SEAL E-SEAL

8. Basic Seal Types Multi Lip Heavy Contact Seal • E7-Seal (Link-Belt) • Heavy Contact Multi Lip Seal • Seals in extremely dirty and wet environments • Metal shield to protect rubber • Great for vertical shafts • Full Misalignment Capability • Disadvantages • Heavy Seal lip pressure results in higher operating temps • Speed is very limited • Temp limit 250° because of Buna-N rubber • Chemicals can affect Buna-N rubber E7-SEAL

9. Basic Seal Types High Temp Heavy Contact Lip Seal • M-Seal Viton (Rexnord) • Heavy Contact Seal • Seals against fine materials and liquids • Great for vertical shafts • Full Misalignment Capability • 400° Temp limit • Very resistant to Chemicals • Disadvantages • Seal lip pressure results in higher operating temps • Speed is limited M-SEAL

10. Ultimate Sealing Package Auxiliary Cap Seals

11. Auxiliary Cap Seals Advantages • Seals against liquids and gritty contaminants • Effective against water washdown, taconite, cement, sand, or caking build up • Safely encloses rotating components • Protects primary seal • 5 points of protection

12. Why do bearings fail? • A – Lubrication Contamination • B - Mounting • C - Miscellaneous • D - True Fatigue

13. Shaft Mounting Systems Comparison

14. SHAFT ATTACHMENTS Double Set collar Increased shaft holding power Increased Stability Moderate cost Eccentric Locking More Holding Power Accommodates for undersize shafting Economical Single Set collar Most Common Easy to install Most economical Tapered Adapter Mount Full 360° shaft contact Concentric Mounting Best Running Accuracy Highest Shaft holding power Accommodates undersize shafting MOST DIFFICULT TO INSTALL

16. What if we could simplify and guarantee that your tapered adapter installation was good every time?

17. Installation: ZAF makes it easy! ZAF6000 7 steps ~ 5 minutes SAF STYLE SPLIT 20 steps ~ 45 minutes Common Installation Errors • Set clearance • Component alignment • Bolt torque • Contamination ZAF is factory lubricated, pre-adjusted and shaft ready

18. SHŪRLOK Highlights • Break thru Optical Strain Sensing Technology (OSS) For correct installation every time • Proprietary Positive Locking System (PLS) • Fast install • Easy to remove (Built in Puller) • Fits entire Rexnord Housing line including the ZAF (SAF style interchange • Takes the mystery out of mounting

19. Break Thru: SpyglassTM OSS Technology Benefits • Indicates when the mount has been properly tightened • Signals too loose & too tight • Two indicators on lock nut to ensure a proper reading

20. Tapered Sleeve Alignment Groove Proprietary: Positive Locking System Benefits • Prevents inner ring fracture in high load & vibratory environments • Enables industry leading grip on shaft (13,500 lbs on 2 7/16”) • Mounting is no longer limitation of capacity, • Enables ease of removal

21. Rexnord SHŪRLOK F& B Factory pre-set clearances reduces installation time by 80%! Self aligning spherical roller bearing provides 3 degrees of static and dynamic misalignment Roller elements machined to best-in-class tolerance provides longer bearing life Factory pre-lubricated elementsrequire 80% less lubrication than SAF models - ISO 14000 Friendly! Super-finished racewaysprovide a cool running, quiet, high speed and high load capacity bearing Hardened Adapter Inner Ring resistsfracture under shock and heavy loads 3 Field interchangeable seal options suits many diverse applications Rugged one-piece housingdecreases installation/removal time by 80% versus SAF models Spyglass™Optical Strain Sensing Technologyprovides error free installation Positive Locking system provideseasy installation and removal, even for undersized shafts. Easy installation: Simply tighten collar until the Spyglass shows this color pattern

22. CHOOSE THE BEST SEAL AND THE BEST SHAFT MOUNT AND YOU WILL GET LONGER BEARING