Motor Demonstration Board Pack Size_10 5 inch Alnico bar pair

5 inch Alnico bar pair with steel keepers

the flywheel light enough to drive by breath for hands-on reciprocating-engine study

Walks students through four-stroke diesel operation on a 16-inch hand-cranked model

illustrating late-pregnancy presentation for obstetric and reproductive anatomy teaching

Tandem double plastic pulley pairing 38mm and 50mm low-friction wheels on an open-sided steel frame

Motor Demonstration Board Pack Size_10 5 inch Alnico bar pairLow voltage DC motor with a current limiting series resistor on a demonstration base with 4mm plug connections, sized as a load that visibly spins when current flows in the circuit.