1 Mod Pinion Gear Spur Gears 10-19 Teeth 4-10mm Bore No Step/Blue Nylon/D-hole Bore & Amount (Pcs):6x5.5mm & 1 while the core remains at

while the core remains at a lower hardness (approximately 20–30 HRC) to retain toughness and resist shock loads

the worn spider can be removed and a new one inserted without full disassembly

🔄Removable and re-sealable — the threaded connection can be disassembled for maintenance

How do I choose between the 52mm and 101mm extension bars

1 Mod Pinion Gear Spur Gears 10-19 Teeth 4-10mm Bore No Step/Blue Nylon/D-hole Bore & Amount (Pcs):6x5.5mm & 1 while the core remains at1 Mod Pinion Spur Gears Precision Motion Control for CNC, Robotics & Automation When your CNC router, 3D printer, or robotic arm demands consistent torque transfer without backlash, choosing the wrong gear module or bore size can derail an entire build. These 1 Module (1M) pinion spur gears are engineered for makers, automation integrators, and small batch manufacturers who need reliable, dimensionally accurate components that drop straight into their