Part I: Games & Gaming · Wheel Games — Roulette

Rotor (Wheelhead)

Roulette

The rotating central component of the roulette wheel that contains the numbered pockets where the ball eventually comes to rest. The rotor is supported by precision bearings and is typically 20 inches in diameter on a standard 32-inch wheel. It contains the cone (a sloping section that directs the ball into the pockets), the numbered pockets themselves, and the frets (metal separators between pockets). The rotor is designed to be easily removable by casino staff for maintenance, cleaning, and periodic rotation between tables to prevent advantage players from exploiting any wheel-specific characteristics.

In practice

Casino operations should rotate rotors between tables on a regular schedule to prevent wheel tracking. Some modern wheels incorporate RFID or sensor technology in the rotor for automatic result detection.

One entry from the Casino Industry Glossary — 1,157 terms written for surveillance, compliance and operations professionals rather than for players. Definitions describe industry usage; where a term carries a regulatory meaning, verify against the instrument that governs your jurisdiction.