Miniature herringbone gears Image credit: Run Ryder | Perpendicular herringbone gears Image credit: Wikimedia | Crossed double helix gear Image credit: 1 DKM 2B. Herringbone gears, also called double helical gears, are gear sets designed to transmit power through parallel or, less commonly, perpendicular axes. The unique tooth structure of a herringbone gear consists of two adjoining, opposite helixes that appear in the shape of the letter 'V'.
Phone Contact Numbers. The Dell customer service phone number claims the caller must have an order number or express service code when calling. This is not the case. You can contact the general customer service number to ask general questions without this information. General Customer Service: 1-512â338-4400.
While 800-642-7676 is Microsoft - Tech Support's best toll-free number, there are 6 total ways to get in touch with them. The next best way to talk to their customer support team, according to other Microsoft - Tech Support customers, is by calling their 800-936-5700 phone number for their Technical Support department.