Amana 47757 Ball Bearing Rub Collar 1-23-32 O.D. x 9mm Height for 3/4 Spindle

Designed for template shaping such as arched or cathedral doors, etc. Features
a ball bearing center with a steel sleeve and is available with either 1/2," 3/4"
and 1-1/4" inside diameter. Includes 2 steel shims.