Description

684 Full Ceramic Bearings (4X9X4)

The 684 full ceramic ball bearings can be supplied with rings and balls made from Zirconia Oxide (ZrO2)or Silicon Nitride (Si3N4) . These bearings are available as full complement (no cage) or with cages made from PEEK, PTFE. These are non magnetic, non-conductive and highly corrosion resistant to most chemicals although. Full complement bearings can be used up to 400°C for Zirconia oxide (ZrO2) and up to 800°C for Silicon Nitride (Si3N4)  while bearings with a PEEK or PTFE cage can cope with temperatures of up to 250°C. For temperatures below –70°C, PTFE cages are preferred. Standard radial play for full ceramic bearings is C3 but other clearances can be supplied to order.

In stock items will typically ship in 3 to 7 working days.

Large quantity discounts available.