Reely Polyacetal Spur Gear Module 1.0, 25 Teeth, 6 mm Bore (SH1025HF)

Precision motion in model building and robotics demands gears that run quietly, resist wear, and keep their shape under load. This Reely spur gear in polyacetal (POM) delivers that with a module of 1.0 and 25 teeth, offering a pitch diameter of 25 mm and an outside diameter of 27 mm. The 6 mm bore fits common shafts, while the involute tooth profile with a 20° pressure angle ensures smooth meshing with compatible gears.

Who is it for

Model builders, robotics enthusiasts, and makers who need a reliable, low-friction gear for light mechanical drives. It suits custom transmissions, servo linkages, and small automation projects where metal gears would add unnecessary weight or noise.

Main features

• Material: Polyacetal (POM) – low friction, high wear resistance, good dimensional stability.
• Module 1.0, 25 teeth – pitch diameter 25 mm, outside diameter 27 mm.
• Bore diameter 6 mm – fits standard shafts.
• Involute tooth profile, 20° pressure angle – smooth, efficient power transfer.

Specifications

• Gear type: Spur gear
• Material: Polyacetal (POM)
• Module (M): 1.0
• Number of teeth (Z): 25
• Bore diameter: 6 mm
• Pitch diameter (dp): 25 mm
• Outside diameter (da): 27 mm
• Pressure angle: 20°
• Tooth profile: Involute
• Intended use: Model building, robotics, light mechanical drives

Tips

Pair with a matching module 1.0 gear for proper meshing. Press-fit or secure with a set screw depending on your shaft. Avoid excessive torque; POM is strong but not intended for high-load industrial applications.