F625ZZ flanged ball bearing – 5 × 16 × 5 mm, 18 mm flange

The F625ZZ is a radial ball bearing with a 5 mm inner diameter, an integrated flange and metal shields on both sides. Its compact design makes it suitable for mechanisms used in 3D printers, CNC machines, extruders, guides, small wheels and other assemblies requiring a bearing with a lateral shoulder.

The flange helps position the bearing against the edge of its housing and may simplify the design of printed or machined parts.

Nominal F625ZZ dimensions

• Inner diameter: 5 mm.
• Bearing body outer diameter: 16 mm.
• Bearing width: 5 mm.
• Flange outer diameter: 18 mm.
• Nominal flange thickness: 1 mm.
• Type: flanged radial ball bearing.
• Protection: ZZ metal shields on both sides.

These are nominal dimensions corresponding to the commercial F625ZZ format. As the specific manufacturer is not identified, tolerances, internal clearance, lubrication and finish may vary between batches. Measure the received bearing when the housing requires a precise fit.

Compatibility

The assembly must accommodate a 5 mm shaft or screw, a 16 mm bearing body, a width of 5 mm and an 18 mm flange. The flange is located on one side, so its orientation and the available clearance around the housing must also be checked.

This bearing is intended primarily for rotation and radial loads. It should not be used as a replacement for a thrust bearing when the main load acts along the shaft axis.

Installation recommendations

• Do not strike the bearing directly during installation.
• Press on the outer ring when fitting it into a housing.
• Press on the inner ring when fitting it onto a shaft.
• Avoid transmitting installation force through the balls.
• Do not deform the flange or side shields.
• Remove burrs and dirt before installation.

The ZZ shields provide protection against moderate contamination and help retain the internal lubricant, but they do not provide a completely watertight seal.

Non-flanged alternative

When the housing already includes its own axial shoulders, consider the non-flanged 625ZZ bearing. It shares the nominal 5 × 16 × 5 mm dimensions but has different external geometry and positioning requirements.

Package contents: 1 F625ZZ bearing.