Casters

Caster Wheels

Metal Ball Caster 15mm Ball, 20mm height

Code: MEC-030215

This all metal ball caster has a 15mm ball and a total height of 20mm. It makes a great 3rd wheel for a robot.

$3.45

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Ship in 3 weeks

Metal Ball Caster 24mm Ball, 30mm height

Code: MEC-030214

This all metal ball caster has a 24mm ball and a total height of 30mm. It makes a great 3rd wheel for a robot.

$6.95

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Ship in 3 weeks

Pololu Ball Caster Kit with 1/2" Metal Ball

Code: MEC-30007

Featuring a 1/2" (12.3mm) metal ball this ball caster kit comes complete with mounting screws and spacers to change the final height of the caster. The caster provides a good 'third point' for a differential drive robot.

$2.90

In Stock: Ships Today

Backorders:
Ship 781 units in 7 days

Pololu Ball Caster Kit with 3/4" Plastic Ball

Code: MEC-30008

With a 3/4" (19mm) plastic ball this ball caster kit comes complete with mounting screws and spacers to change the final height of the caster. Dowel pins are included to reduce friction between the ball and ABS housing. The caster provides a good 'third point' for a differential drive robot.

$5.95

In Stock: Ships Today

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Ship 269 units in 7 days

Pololu Ball Caster with 1" Plastic Ball

Code: MEC-30033

This light ball caster uses a 1" (25.4mm) diameter plastic ball. The height of the assembled kit ranges from 1.1" (28mm) to 1.4" (35.5mm). Dowel pins are used to minimize the friction between the ball and the ABS housing.

$6.95

In Stock: Ships Today

Backorders:
Ship 144 units in 7 days

Pololu Ball Caster with 3/8" metal ball

Code: MEC-30034

This small ball caster uses a 3/8" (9.5mm) diameter metal ball. The height of the assembled kit ranges from 0.4" to 0.6" (10.1mm to 15.2mm). The caster provides a good 'third point' for a differential drive robot.

$2.70

In Stock: Ships Today

Backorders:
Ship 779 units in 7 days

Tamiya 70144 Ball Caster Kit (2 casters)

Code: MEC-30056

Tamiya’s steel-ball caster is a good way to give a “third wheel” to a small robot powered by a differential drive. The kit comes with enough parts to make two casters, either 25 mm or 35 mm in height. Requires some assembly.

$11.95

In Stock: Ships Today

Backorders:
Ship 37 units in 7 days

Plastic Ball Caster (3-Pack)

Code: SKU-002349

This plastic roller ball is a great third contact point for a small, differential-drive robot. They are sold in packs of three .

$2.80

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Backorders: Not Available

Pololu Ball Caster Variety Pack

Code: SKU-002437

Order the Pololu ball castor variety pack and save! The variety pack consists of seven different Pololu ball casters. The replacement 3pi ball castor and new version of the ball castor with 1″ plastic ball are not included with this variety pack.

$39.95

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Backorders:
Ship 144 units in 7 days

Pololu Ball Caster with 1/2″ Plastic Ball

Code: SKU-002439

This light ball castor uses a 1/2″ diameter plastic ball. The height of the assembled kit ranges from 0.5″ to 0.8″.

$2.70

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Backorders:
Ship 279 units in 7 days