Patent ID: 8152677

Claim:
A traction drive transmission comprising: an outer ring having a circular raceway presented inwardly; a sun roller having a raceway presented outwardly toward the raceway of the outer ring and being offset eccentrically with respect to the outer ring so that a wedge gap exists between the raceways of the outer ring and sun roller; support rollers located between the outer ring and sun roller and having first and second raceways that differ in diameter, the support rollers contacting the raceway of the sun roller along their first raceways and the raceway of the outer ring along their second raceways; and at least one loading roller located at the wedge gap between the raceways of the outer ring and sun roller and having first and second raceways that differ in diameter, each loading roller contacting the raceway of the sun roller along its first raceway and the raceway of the outer ring along its second raceway.