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Nubs
$5.00 – $12.00
$2.50 – $8.00
The nub is a series of hubs intended to connect motion components to spinning shafts, like sprockets gears, pulleys and wheels. It supports the output shaft of the AndyMark NeveRest motors as well ...Read More
Product Overview
The nub is a series of hubs intended to connect motion components to spinning shafts, like sprockets gears, pulleys and wheels. It supports the output shaft of the AndyMark NeveRest motors as well as other motors on the market. It also supports the AndyMark 6 mm D shafts for robust motion systems and impeccable torque transfer.
We carry several body profiles of the Nub too! Their use cases are:
- Single Boss for installing an individualNub Bore item on a shaft
- Double Boss for locating twoNub Bore items on a shaft
- Double Boss XL for high-torque applications or connecting two shafts together
- Single Boss Bearing for making free-spinning motion components (am-3667 has been replaced by am-4316)
- Single Boss Servo for interfacing with 24T spline-based servos
The four mounting holes on these nubs are sized at 0.128" diameter, with the intention of accepting a #6-32 threaded screw. They are not tapped, but can be tapped by most machine screws due to this diameter.
Note:
The 5 mm hex bore is not timed to any particular face of the Nub. The hexs on various Nubs are not guaranteed to rotationally line up with other Nubs.
The flat sides on all of the D-bore Nubs are timed and parallel to the sides with the setscrew (although they are on the opposite side as the setscrew)
Specifications
- Bore: 5 mm Hex, 6 mm D-Bore, 6 mm Round, 24 tooth servo
- Height: 0.625 in.
- Length: 0.625 in.
- Material: 6105-T5 Aluminum
- Set Screw: Holes sized for 10-32 Set Screw (Set Screw Included)
Documents
Layout Print(s)
CAD File(s)
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Guide(s)
Returns
Returns are accepted within 30 days of purchase.
View our return policy here.
Recommendations
7 reviews
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Good fit and finish - Nubs
These nubs are being used in our version of the robotics base. They work exactly as advertised. My only complaint is the shipping time and cost. In today's market, it should not take a week to deliver these parts. When we order parts mid-season, we really need them in 2 days - but we cannot afford the huge premium for 2 day shipping. Recommend looking at other shipping contracts, or working with Amazon Prime.
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"Good fit and finish - Nubs"
"These nubs are being used in our version of the robotics base. They work exactly as advertised. My only complaint is the shipping time and cost. In today's market, it should not take a week to deliver these parts. When we order parts mid-season, we really need them in 2 days - but we cannot afford the huge premium for 2 day shipping. Recommend looking at other shipping contracts, or working with Amazon Prime."
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Single Use Only
These are great, but pretty much single use only. Extremely hard to screw in bolts and even harder to remove them
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Review
5 Stars
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great for people not so good at set screws.
This takes the set screw out of the torque transmission path, so if you don't get it tight, it still spins. Might fall off, but until then, will keep spinning.
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"great idea"
"We don't have a lot of burn time on these yet, but since Hubs are easily our teams biggest source of unreliability, we are optimistic this new design will put that behind us. I wonder if they would be better if the holes were tapped. We put some together without tapping and some with, so we will see how it turns out. (untapped, it seemed the edge of the Nub distorted a little more than we liked. We wondered if maybe that would serve like a locking mechanism, but tapped some of them to compare)."
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great idea
We don't have a lot of burn time on these yet, but since Hubs are easily our teams biggest source of unreliability, we are optimistic this new design will put that behind us. I wonder if they would be better if the holes were tapped. We put some together without tapping and some with, so we will see how it turns out. (untapped, it seemed the edge of the Nub distorted a little more than we liked. We wondered if maybe that would serve like a locking mechanism, but tapped some of them to compare).
