Thomson currently has two account systems - one for the website and CAD model downloads, and one for e-commerce. We understand that two logins is an inconvenience and are working to consolidate our systems into one login process. Until we’re able to consolidate the two logins, please follow these guidelines:
reason is that there is no ball re-circulation, which means no noise
from the balls. No ball bearings or ball re-circulation allows a lead
screw assembly to be more compact.
of a lead screw is that it is not necessary to harden the screw. Screws
can be made of corrosion-resistant stainless steel. Soft screws mean
that there is no need to anneal the screw prior to machining the ends.
A lead screw assembly is a simple design with few parts. With so
parts, the nuts are easier to customize. Custom sizes and designs can
be created quickly to match unique applications. Nuts can be made of
custom polymers or bronze. Nuts can be molded, tapped or machined
lubricated plastics and optional PTFE coatings reduce or eliminate
service requirements. 300 Series stainless steel screws and plastics are
good choices for clean room or instrument-grade applications.
Many lead screw choices are self locking. This reduces the need for a brake on vertical application or to hold a load.
This all adds up to a high-performance-to-price ratio (value).