Bearing tool for Zipp ZR1 rear hubs
*** Buy one, get one 30% off any mix of pullers and presses (applies to individual tools only, not kits) ***
This tool is designed to allow the installation of new bearings in a Zipp ZR1 rear hub body. This hub design is found in Zipp's 303 Firecrest, 404 Firecrest and 808 Firecrest wheels.
The ZR1 rear hub is a bit of an oddity in that the bearing is pressed onto the axle rather than into the hub body, as is the norm with other hubs.
This ZR1 package includes our
6903 Over-Axle Press along with a special adaptor which allows the press to be used to remove the old bearing from the axle and then reinstall the new one.
How To Use
Zipp's service manual for the ZR1 can be found here.
- Removal of the drive side bearing from the axle: Page 9 step 5 of the Zipp ZR1 service procedure can be completed without a vice or a hammer by sliding our ZR1 adaptor over the short end of the axle (in place of the vice). You'll notice that the bore is wider on one end of the adaptor; put this wider opening end facing the bearing. Install the rest of the over-axle press after the adaptor, and now, by screwing the press together, the bearing will be pressed off the axle.
- Installing the new bearing on the axle: Page 12 step 3 to page 13 step 4 of the service manual will again be possible without a hammer. Put our adaptor onto the longer end of the axle, this time with the smaller bore of part B against the new bearing. Follow it up with the over-axle press's longer drift. Slide the shorter over-axle drift onto the shorter end of the axle, and again use the threaded rod and T-bars to tighten this assembly, pressing the bearing into place, just until you feel the bearing bottom out against the shoulder on the axle.
- Installing the axle & bearing into the hub body: Refring to page 13 step 6 to page 14 step 8 of the manual, place the axle/bearing into the hub, put the wider end of the adaptor shorter end of the axle against the bearing, followed by the shorter over-axle drift. Put the longer over-axle drift on to the other side of the axle where it protrudes from the non-drive side of the hub. Again, use the threaded rod and T-bars to snug the bearings gently into place.
- Installing the non-drive side bearing: With the adaptor and press drifts in the same arrangement as before, but now with the non-drive side ebaring in place, the press can be tightened to drive the second bearing into place.
Bearing Removal
Our optional
over-axle bearing remover can be used to remove rear axle and non-drive side bearing from the rear hub body, negating the need for the hammer show in page 8 step 3 nor the slide hammer and bearing puller used in page 10 step 7 of the Zipp service manual.
This bearing remover can be ordered 'drifts only, and use the threaded rod from the Zipp package.
Front Hub and Freehub
Zipp's
ZR1 front hubs are more conventional in their design, they use 6903 bearings in a non-over-axle arrangement. We would recommend
this puller and
these press drifts (the press handles and threaded rod from the rear hub tool can be used with these drifts).
We offer 30% off every second item for all of the tools in these menus.
