SDTC Tech 1/4 inch Flange Shaft Coupling Metal Axis Bearing Fittings Rigid Coupler for Stepper Motor RC Model (2 Pack) Size:1/4 inch Make sure that the positive

Make sure that the positive and negative connections between the power supply and the governor are correct before turning on the power

Do NOT use for overhead lifting

Measuring Frequency Range: 1Hz~50MHz Signal Frequency: Max

Overall Length=2-3/4''

WHAT CAN DO: Preventing parts loosening due to vibration that can lock and seal the threaded fasteners

SDTC Tech 1/4 inch Flange Shaft Coupling Metal Axis Bearing Fittings Rigid Coupler for Stepper Motor RC Model (2 Pack) Size:1/4 inch Make sure that the positiveSDTC Tech 1 4 inch Flange Shaft Coupling Metal Axis Bearing Fittings Rigid Coupler for Stepper Motor RC Model (2 Pack) Specification: Inner Diameter: 1 4 inch (6. 35mm)Cylinder Outer Diameter: 10mmCylinder Height: 10mmBase Diameter: 22mmBase Height: 2mmBase Hole Pitch: 16mmFastening Screw Hole: M3Base Fixing Screw Hole: M3Package Include: 2 x 1 4 inch Flange Shaft Coupling 1 x Hex Wrench 4 x M3 Fastening Screw Product Features Flange Shaft Coupling is