Motion System Design

Product Spotlight: Locking devices

Shaft collars

S25FB9 (brass) and S25FY9 series (303 stainless steel) shaft collars incorporate built-in bearing shim spacer and Fairloc integral hub fastener.

Features & benefits

  • Inch and metric sizes fit shafts from 0.12 to ¾ in. (3 to 20 mm) in diameter

  • O.D.s from 0.433 to 1.496 in. (11 to 38 mm)

  • Fairloc fastener prevents marred shafts, permits frequent phase, timing, and position adjustment; adds positive metal-to-metal fastening strength along both hub sections

Sterling Instrument
(516) 328-3300
Circle 151

Retaining devices

Adjustable Tangent-Lok devices secure power transmission and other mechanical assemblies.

Features & benefits

  • Infinite position lock; ability to properly preload assembly
  • Eliminate need for keyed shaft, lockwasher
  • Install with PAS wrench or SLAS socket
  • Carbon steel with alloy hex-head set screws
  • Manufactured with SAE inch threads and ISO metric threads

Whittet-Higgins Co.
(401) 728-0700
Circle 152

Corrosion-resistant shaft collars

Smooth-bore shaft collars include corrosion-resistant screws made from 316 stainless steel.

Features & benefits

  • One and two-piece clamp-style designs with bore sizes from ⅛ to 2-in., 3 to 50-mm in metric series

  • Clamp-style collars do not mar shafts; higher holding power, more easily adjustable than setscrew collars

  • Single-point faced for perpendicularity, proper alignment

  • Face-to-bore relationship ensures components are properly positioned and not tilted on shaft

Ruland Manufacturing Co. Inc.
(508) 485-1000
Circle 153

Hide comments


  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.