Bronze bearing above vee packing and another between the two spiral retainers. Doble acting cylinders with nylon bearings on either side of pack set.
Internal bearing is step cut for snap ring.
Vee sets have fab vees. Single acting cylinders with nylon bearing on either side of pack set. Internal bearing is step cut for snap ring. Normally use urethane U-cups, by may be retrofitted with vee packing. Nylon bearings with step on OD of inner bearing to fit over snap ring.