Winter 2010 Volume 7 Identifying Bearings for …

1 ConMet PreSet wheel hub assemblies for commercial truck and trailer applications have been available since 1995. PreSet hub assemblies use specially toleranced tapered roller Bearings . Currently, there are three approved suppliers for Bearings used in PreSet hub assemblies. These manufacturers are General/Hyatt, SKF and Timken. Each manufacturer uses a unique part numbering system to identify its PreSet bearing cups and cones. The cross reference chart below lists each manufacturer s part number for the individual cup and cone along with the corresponding bearing Set required for servicing PreSet hubs.

2 While the Bearings are interchangeable, using bearing cups and cones from different bearing manufacturers may void the manufacturer s warranty on each of the components. ConMet recommends using only cup and cone sets from the same bearing manufacturer when servicing PreSet hub assemblies Please note that General/Hyatt bearing cups and cones use the industry standard part number and have added -04 or PS to the bearing cup and cone part number to signify that they are close tolerance Bearings built for PreSet hub assemblies. General/Hyatt Bearings without the -04 or PS part number designation should not be used in PreSet hub assemblies.

3 SKF and Timken bearing cups and cones each have unique part numbers. When a PreSet hub assembly is serviced, be sure to inspect the bearing spacer. The bearing spacer should be replaced if it shows any sign of wear or damage. The wheel seal should also be replaced each time a wheel end is disassembled. Additional Preset hub service information is available in the ConMet PreSet Hub Assembly Service Manual available at or by calling ConMet Customer Service at 2010 Volume 7 Identifying Bearings for PreSet Hubs 2010 Consolidated Metco, in The United States of America Consolidated Metco, Inc.

4 5701 SE Columbia Way Vancouver, WA 98661 800-547-9473 Quarterly Publication of Consolidated Metco, Part Part General / Hyatt Part General / Hyatt Part Part # 427 Set# 427 Set# 427 Set# 427103597NP026773 / NP378092HM212011-04HM212011 PSLBT1-0433103596NP899357HM212049-04HM21 2049 PSRBT1-0433107501 Set# 428 Set# 428 Set# 428 Set# 428103595NP4353983720-043720 PSLBT1-0429103594NP8740053782-043782 PSRBT1-0429 ConMet Part Part General / Hyatt Part General / Hyatt Part Part PS N/A10003823NP294109N/A6461A PS N/A10009903N/AN/AN/AN/A10003821NP1883330 N/A552A PS N/A10003824NP107091N/A555-S PS N/AConMet Part Part General / Hyatt Part General /

5 Hyatt Part Part # 429 Set# 429 Set# 429 Set# PSRBT1-0434107503 Set# 430 Set# 430 Set# 430 Set# 430103601NP053874 PSLBT1-0431103600NP840302 PSRBT1-0431 ConMet Part Part General / Hyatt Part General / Hyatt Part Part #431 Set #431 Set #431 Set #431104155NP503727 / NP250023HM218210-04HM218210 PSLBT1-0430104154NP965350 / NP022333HM218248-04HM218248 PSRBT1-0430107500 Set #427 Set# 427 Set# 427 Set# 427103597NP026773HM212011-04HM212011 PSLBT1-0433103596NP899357 / NP431952HM212049-04HM212049 PSRBT1-0433 ConMet Part Part General / Hyatt Part General / Hyatt Part Part # 432 Set# 432 Set# 432 Set# 432104157NP593561 / NP156827HM518410-04HM518410 PSLBT1-0426104156NP174964 / NP417549HM518445-04HM518445 PSRBT1-0426FF Steer PreSet BearingsFL Steer PreSet BearingsR-Drive PreSet BearingsInner bearing SetInner CupInner ConeOuter bearing SetOuter CupOuter ConeInner bearing SetInner CupInner ConeOuter bearing SetOuter CupOuter ConeInner bearing SetInner CupInner ConeOuter bearing SetOuter CupOuter ConeInner bearing SetTN Trailer PreSet BearingsInner CupInner ConeOuter bearing SetOuter CupOuter ConeInner &

6 Outer bearing SetInner & Outer bearing CupInner & Outer bearing ConeTP Trailer PreSet Bearings