Pololu Ball Caster with 1″ Plastic Ball and Plastic Rollers

SKU: POLOLU-2691 Brand: Pololu
This ball caster uses a 1″ diameter plastic ball and has an overall height of 1.1″ (29 mm). The two-part housing snaps together to securely enclose the ball and three plastic rollers that reduce the friction between the ball and the ABS housing. The base piece of the housing has holes for three #4 or M3 screws (not included).
$8.30 AUD, inc GST
$7.55 AUD, exc GST

Available with a lead time
Expect dispatch between Dec 26 and Dec 30

Quantity Discounts:

  • 10-25 $7.32 (exc GST)
  • 25+ $7.17 (exc GST)
- +

0 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

Shipping:

  • $7+ Standard (5+ days*, tracked)
  • $11+ Express (2+ days*, tracked)
  • FREE Pickup (Newcastle only - must order online*)

Shipping costs may increase for heavy products or large orders.

Exact shipping can be calculated on the view cart page.

*Conditions apply, see shipping tab below.

This ball caster is an improved version of Pololu's original Pololu Ball Caster with 1" Plastic Ball; Pololu recommend this new version over the older version for all applications that are not somehow specifically tied to the previous design.

Assembling the Pololu Ball Caster with 1" Plastic Ball and Plastic Rollers (screws not included).

This ball caster kit includes a two-part black ABS housing, a 1" diameter POM (also know as acetal or by the brand name Delrin) plastic ball, and three ABS rollers. When assembled, the ball caster is capable of rolling in any direction with low friction, making it suitable for use as a third contact point for wheeled, differential-drive robots weighing up to around ten pounds.

The base piece of the housing has holes for three #4 or M3 mounting screws (not included) and slots for the three rollers. The second part of the housing snaps into the base piece to secure the ball and rollers. The assembled ball caster has an overall height of 1.1" (29 mm).

This ball caster is also available with ball bearings instead of plastic rollers for smoother performance.

Dimensions

Dimensions of the Pololu Ball Caster with 1" Plastic Ball and Plastic Rollers. Units are mm over [inches].

This dimension diagram is also available as a downloadable PDF (133k pdf).

Comparison of Pololu ball casters

Pololu ball casters with plastic and metal balls. Ball diameter from left to right: 1", 3/4", 1/2", and 3/8".

Pololu ball caster
ball diameter
height with
no spacers
distance
between
screw holes
weight with
no spacers
or screws
0.40" 0.53" 0.03 oz
0.40" 0.53" 0.14 oz
0.53" 0.58" 0.07 oz
0.53" 0.58" 0.32 oz
0.88" 0.24" 0.25 oz
0.82" 0.61" 1.05 oz
1.10" 0.48" 0.65 oz
1.10" 0.48" 0.58 oz
1.10" 0.70" 0.36 oz

People often buy this product together with:

Pololu Ball Caster with 1/2Pololu Ball Caster with 1/2" Plastic Ball
Pololu Ball Caster with 3/4Pololu Ball Caster with 3/4" Plastic Ball
Pololu Micro Metal Gearmotor Bracket Pair - BlackPololu Micro Metal Gearmotor Bracket Pair - Black

Dimensions

Ball diameter: 1 in
Weight: 16.5 g

General specifications

Ball material: plastic

File downloads

This product is listed in:

Hardware>Wheels>Casters

Product Comments

Exact shipping can be calculated on the view cart page (no login required).

Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).

We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

  • $3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
  • $7+ for Standard Post (typically 6+ business days, tracked)
  • $11+ for Express Post (typically 2+ business days, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $12+ for Pack and Track (3+ days, tracked)
  • $16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

Have a product question? We're here to help!

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