Product News: Mechanical Power Transmission

Multi-Plate In-Line Slip Clutches have low-backlash design.

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Press Release Summary:

February 19, 2014 - Featuring outer plates tabbed to fit into output housing and inner plates connected to input hub, all-mechanical S98CA7-… series is commonly used for overload protection and can also be used in such applications as tension control and positioning retention hinges. Slip plates are layered with friction pads in-between, and adjusting nut sets slip torque. Recesses for tabs of outer slip plates are cut such that tabs lie in plane with housing, promoting tight fit to lower backlash.

SDP/SI (Stock Drive Products/Sterling Inst)

2101 Jericho Tpk., P.O. Box 5416, New Hyde Park, NY, 11042 5416, USA

Original Press Release

New Slip-Ease Clutches Offer Improved Backlash

Press release date: February 7, 2014

New Hyde Park, NY – Sterling Instrument (AS9100 Registered Manufacturer) offers a new, low backlash variant on its existing line of multi-plate in-line slip clutches.  Both versions feature an all mechanical design, which makes them considerably cheaper than electro-mechanical alternatives.  The slip plates are layered with friction pads in between, and an adjusting nut sets the slip torque by squeezing the plates together.  The outer plates are tabbed to fit into the output housing and the inner plates are connected to the input hub, so that the two ends disengage from one another upon slipping.  These clutches are commonly used for overload protection to prevent injury and machine failure, but have a wide variety of other applications such as tension control and positioning retention hinges like the ones in reclining chairs.

While the Slip-Ease and normal backlash clutches both operate on the same mechanical principal, the Slip-Ease variant features a slight change in the design of the housing that offers several distinct advantages, namely reduced backlash of about 2 degrees.  The recesses for the tabs of the outer slip plates are cut in such a way that the tabs lie in plane with the housing.  This provides a tighter fit between the tabs and the housing, which results in lower backlash.  It also reduces the overall diameter of the clutch, so that the torque output for a given size is greater.  Identified as the S98CA7-… series, these low backlash clutches are perfect when precision is required and space is limited.

SDP/SI is a leading manufacturer of small mechanical components, servicing a wide variety of aerospace, medical and commercial industries for over 50 years. Quotes, online orders, and 3D CAD Models are available on our updated estore at www.sdp-si.com/estore. SDP/SI offers over 130,000 power transmission components, including gears, belt and chain drives, shafts, shaft accessories, bearings, couplings, universal joints, vibration mounts, miscellaneous components, hardware, gearheads and speed reducers, right angle drives, brakes and clutches, motors and gearmotors. For additional information about SDP/SI please visit www.sdp-si.com. Stock Drive Products / Sterling Instrument (SDP/SI), 2101 Jericho Turnpike, P.O. Box 5416, New Hyde Park, NY 11042-5416. Phone: 1-800-819-8900 | 516-328-3300 • Fax: 516-326-8827.

For additional details go to: http://sdp-si.com/product-announcements/Polyclutch.htm

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