Ball screw
A threaded rod with a nut that rides on ball bearings, turning a motor's spin into a strong straight push or pull.
A kind of part, not one product. The robot company does not say which model or whose it is. So there is no single price; the rough figure is what comparable products cost.
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How to get it
The robot companies do not say who makes this part, so it cannot be ordered as such. Comparable parts you can buy, with their prices, are listed below.
Comparable parts you can buyNot the confirmed part
4 products, scroll sideways
Products on public sale that do the same job, with why each is similar and where to buy it. None is confirmed to be the part inside these robots.
PBC Linear BSR miniature ball screw with flange nut, BSR08025T7R-0250-FRS-NNN-NNN-N
Similarby PBC Linear
8 mm screw; 2.5 mm travel per turn; 250 mm long; 1.32 kN dynamic load rating
Why it's similar. A small ball screw and nut that turns a motor's spin into a straight push, the job the screw does in Spot's knee.
Where to buy
PBC Linear storeUS$190.28Buy
PBC Linear BSR miniature ball screw with cylindrical nut, BSR1002ATXR-0500-CNS-NNN-NNN-N
Similarby PBC Linear
10 mm screw; 2 mm travel per turn; 500 mm long; 1.49 kN dynamic load rating
Why it's similar. A slightly larger small ball screw and nut, sold cut long so it can be trimmed to fit.
Where to buy
- PBC Linear storeUS$165.52Buy
PBC Linear BSR miniature ball screw with cylindrical nut, BSR0801ATXR-0150-CNS-NNN-NNN-N
Similarby PBC Linear
8 mm screw; 1 mm travel per turn; 150 mm long
Why it's similar. A short 8 mm ball screw and nut, close to the length a robot leg linkage needs.
Where to buy
- PBC Linear storeUS$131.21Buy
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