Reely polyasetaali hammaspyörä moduuli 0,5, 20 hammasta, 4 mm poraus (SH0520HF)

Model builders and robotics enthusiasts rely on this Reely spur gear for precise motion transfer in small mechanisms. Cut from polyacetal (POM), it delivers smooth, low-noise operation in gear trains where accuracy matters.

Key specifications

• Module: 0.5
• Number of teeth: 20
• Bore diameter: 4 mm
• Material: Polyacetal (POM)
• Tooth profile: Involute
• Pressure angle: 20°

Why choose it

Polyacetal offers high wear resistance and a low friction coefficient, so the gear runs quietly and lasts through repeated cycles. Its chemical resistance adds durability in demanding environments.

Ideal use cases

• Precision mechanisms
• Model building
• Robotics

Good to know

The 4 mm bore fits standard round shafts of that diameter. The involute tooth profile ensures smooth meshing with other module 0.5 gears.