Adaptor kits only see other listings for rrp bearing press to use with these kitssee size guide for kit detailsthe bearing press extraction tool 40bpet41 is designed for the home mechanic for use on linkage bearings however it still works on many pivot and hub bearings 40adaptors kits are being developed for hubs pivot bearing use41instructions for usefirstly ensure you have the correct rrp bearing kit to match the bearings you intend to insert extract 40see list below