The Ultimaker ball bearing 693ZZ is a genuine OEM replacement part used within the motion system of Ultimaker 3D printers. Ball bearings are key to the smooth, low-friction movement of printer axes, print heads and build platforms. Over time, bearings can wear, develop play or become noisy, leading to degraded print quality through increased vibration, uneven movement or axis binding.

The 693ZZ is a standard miniature ball bearing size (3mm bore, 8mm outer diameter, 4mm width) with double metal shields (ZZ) that protect the internal races from contamination by debris and plastic particles. Replacing worn bearings with genuine Ultimaker parts ensures the correct specification and fit within the printer's motion hardware, maintaining the tight tolerances needed for accurate 3D printing.

Key features

• Genuine OEM Ultimaker 693ZZ ball bearing, designed to the correct specification for use in Ultimaker printer motion systems.
• Standard 693ZZ dimensions: 3mm bore x 8mm outer diameter x 4mm width, a precision miniature bearing format.
• Double metal shields (ZZ) protect the bearing races from plastic dust, filament debris and contamination during printer operation.
• Replacing worn or noisy bearings restores smooth, quiet axis movement and reduces vibration artefacts in prints.
• An essential service spare for high-usage Ultimaker printers to maintain motion precision and print quality over time.

Compatible with: Ultimaker 2, Ultimaker 2+, Ultimaker 3, Ultimaker S3, Ultimaker S5 (and other Ultimaker models using 693ZZ bearings)