Talk:Burman and Sons
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'Recirculating worm and ball design'
[edit]Having carefully read the link it appears to me that this is incorrect. The manual more correctly refers to it as a 'screw and nut' design, which is much clearer. There are no recirculating ball bearings in the thread - the whole point of the design is the large contact area within the thread dispersing the forces and maintaining the oil film - ballbearings would have point contacts.