problem: solution - rockauto · 2020-02-26 · tech line: 1-800-325-8886 moogproblemsolver.com for...

tech line: 1-800-325-8886 moogproblemsolver.com www.FMe-cat.com For parts lookup, visit SOLUTION: PROBLEM: BULLETIN: 27017–R ©2015 Federal-Mogul Motorparts Corporation. NASCAR is a registered trademark of NASCAR, Inc. MOOG and The Problem Solver are trademarks owned by Federal-Mogul Corporation, or one or more of its subsidiaries, in one or more countries. All other trademarks are the property of their respective owners. All rights reserved. Form# MG27017-R • Inside the assembly, the MOOG Belleville spring washer design maintains a consistent preload force between the patented domed cover plate and the top of the bearing. • As clearances inevitably increase with mileage, the Belleville washer’s preload force of up to 100 ft/lbs. against the bearing maintains proper stud ball/bearing alignment and clearances for more consistent operation for the life of the part. MOOG ® Premium Belleville Washer Design Shortened Service Life/ Loose Steering • Manufacturing tolerance variations may result in excessive clearances in the stud and housing, even when new. • This excessive clearance results in less-precise handling, safety concerns and shorter assembly life. • Without a bearing preload provision, larger clearances and increased axial movement can occur at lower mileages. EXCESSIVE CLEARANCE SHORTENS ASSEMBLY LIFE AND RAISES SAFETY CONCERNS. BELLEVILLE WASHER CAN EXERT UP TO 100 LBS. OF FORCE OTHER SUPPLIERS MAY NOT USE A PRELOAD. VARYING MANUFACTURING TOLERANCES MAY RESULT IN EXCESSIVE LOOSENESS, EVEN IN A NEW PART. NON-MOOG DESIGN BELLEVILLE PRELOADS BEARING TO MINIMIZE IMPACTING AS BEARING SURFACES WEAR. THE BELLEVILLE SPRING-STEEL WASHER PRELOADS THE BEARING TO MAINTAIN OPTIMUM BALL-TO-BEARING CLEARANCE LONGER THAN TYPICAL ASSEMBLIES. OTHER SUPPLIERS MAY USE AN OVER-STRESSED BELLEVILLE THAT SHATTERS AFTER CYCLIC LOADING, RESULTING IN EXCESSIVE LOOSENESS. MOOG ® EXCLUSIVE BELLEVILLE WASHER DESIGN BEARING PRELOAD AXIAL DEFLECTION IS VERTICAL MOVEMENT (UP AND DOWN) OF THE BALL STUD WITHIN THE HOUSING. AXIAL DEFLECTION MOOG PREMIUM BELLEVILLE WASHER DESIGN IS FOUND ON MOOG SOCKET-STYLE COMPONENTS, INCLUDING: BALL JOINTS AND TIE-ROD ENDS

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tech line: 1-800-325-8886

moogproblemsolver.com

www.FMe-cat.comFor parts lookup, visit

SOLUTION:PROBLEM:

B U L L E T I N : 2 7 0 1 7 – R

©2015 Federal-Mogul Motorparts Corporation. NASCAR is a registered trademark of NASCAR, Inc. MOOG and The Problem Solver are trademarks owned by Federal-Mogul Corporation, or one or more of its subsidiaries, in one or more countries. All other trademarks are the property of their respective owners. All rights reserved. Form# MG27017-R

• Inside the assembly, the MOOG Belleville spring washer designmaintains a consistent preload force between the patenteddomed cover plate and the top of the bearing .

• As clearances inevitably increase with mileage, the Bellevillewasher’s preload force of up to 100 ft/lbs. against the bearingmaintains proper stud ball/bearing alignment and clearancesfor more consistent operation for the life of the part.

Moog® Premium Belleville Washer Design

Shortened Service Life/ Loose Steering

• Manufacturing tolerance variations may result in excessiveclearances in the stud and housing, even when new.

• This excessive clearance results in less-precise handling, safetyconcerns and shorter assembly life.

• Without a bearing preload provision, larger clearances andincreased axial movement can occur at lower mileages.

EXCESSIVE CLEARANCE SHORTENS ASSEMBLY LIFE AND RAISES SAFETY CONCERNS.

BELLEVILLE WASHER CAN EXERT UP TO

100 LBS. OF FORCE

OTHER SUPPLIERS MAY NOT USE A PRELOAD. VARYINg MANUFACTURINg TOLERANCES MAY RESULT

IN EXCESSIVE LOOSENESS, EVEN IN A NEW PART.

NON-MOOg DESIgN

BELLEVILLE PRELOADS BEARINg TO MINIMIzE IMPACTINg AS BEARINg SURFACES WEAR.