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Lego HUB for Radial Bearings (13,10,8mm diameter) 3d printed Large - Fits 5x13x4mm Bearings

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Large - Fits 5x13x4mm Bearings
Lego HUB for Radial Bearings (13,10,8mm diameter) 3d printed Large - Fits 5x13x4mm Bearings
Lego HUB for Radial Bearings (13,10,8mm diameter) 3d printed Large - Fits 5x13x4mm Bearings

DIGITAL PREVIEW
Not a Photo

Lego HUB for Radial Bearings (13,10,8mm diameter)

$5.45
3D printed in white nylon plastic with a matte finish and slight grainy feel.
QTY
Product Description

TLDR; Much lower in cost than official Lego Steering parts, absolutely no wobble in the linkage, and whatever colour you desire!

Update: Final Revision! I challenge anyone who purchases this to come up with any impovement that can be made; I assure you it won't be easy, so I'll even send you a coupon over paypal so you can purchase your improved version for free.

This hub is designed to function as a non driven hub for the front wheels of a rear wheel drive Lego vehicle. It fits around a set of two 5x13x4mm (or 5x10x4mm) radial bearings (I purchased mine from ebay at 10 pieces for $3). The bearings to be used in this have an inner diameter of 5mm, allowing lego axles to fit through perfectly, and be held tight with just a layer of tape or glue around the axle. I also designed the hub with the steering linkage offset from the kingpin by a ratio of 3:1 (length to width) for a basic ackermann steering geometry. (used to prevent wheel slip)

It comes as a set of two that can be easily clipped apart with a hobby knife, or some thin scissors. The purpose is to include both left and right hubs, while keeping the cost lower since number of items is a factor in shapeway's pricing. The surface they're attatched at isn't vital, so just clean off whatever excess you like to without cutting into the necessary structure too far. 

Fun fact: These hubs were created to replace the age old Lego steering hubs (part x873c01 on bricklink) which are being sold for 8+ CAD (used), and 12+ CAD (new) per hub. This new and improved replacement only costs (depending on finish and size) 6.89-8.46 CAD for a pair, then ~1.2 CAD on top of that for the 4 bearings. That's 4.05~4.83 CAD per HUB!

Therefore, it's still far lower in cost, has much less wobble in the parts, and comes in whatever colour you desire!

Details
What's in the box:
LEGO Coaster Hub
Large - Fits 5x13x4mm Bearings
Dimensions:
3.64 x 3.16 x 1.7 cm
Switch to inches
1.43 x 1.24 x 0.67 inches
Switch to cm
Success Rate:
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Rating:
Mature audiences only.
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