This is a 950-POLOLU Ball Caster with 3/8" Plastic Ball.
This small, light ball caster uses a 3/8" diameter plastic ball. The height of the assembled kit ranges from 0.4" to 0.6".
This ball caster kit includes a black ABS housing, a 3/8" diameter plastic ball, two spacers (1/16" and 1/8" thick), and two #2 screw sets. The total height of the ball caster, 0.4", can be increased to about 0.6" using the included spacers. The two included #2 screws can be used to mount the ball caster to your chassis (the distance between the screw holes is 0.53").
Note that our ball casters are designed for small robots; they are not intended to bear more than a few pounds. With more weight than this, friction between the ball and the housing will probably keep it from rolling well.
|950-POLOLU||Ball Caster with 3/8″ Plastic Ball||0.375||0.8||plastic|
|951-POLOLU||Ball Caster with 3/8″ Metal Ball||0.375||4||metal|
|952-POLOLU||Ball Caster with 1/2″ Plastic Ball||0.5||2||plastic|
|953-POLOLU||Ball Caster with 1/2″ Metal Ball||0.5||9||metal|
|954-POLOLU||Ball Caster with 3/4″ Plastic Ball||0.75||7||plastic|
|955-POLOLU||Ball Caster with 3/4″ Metal Ball||0.75||30||metal|
|956-POLOLU||Ball Caster with 1″ Plastic Ball (old version)||1||10||plastic|
|2691-POLOLU||Ball Caster with 1″ Plastic Ball and Plastic Rollers||1||16.5||plastic|
|2692-POLOLU||Ball Caster with 1″ Plastic Ball and Ball Bearings||1||18.5||plastic|