Rimtec Corporation - Safety Couplings


Safety Couplings

Rimtec’s line of direct-drive and indirect torque-limiting safety couplings disengage highly dynamic drives within an unprecedented 2-4 msecs of an overload signal, and then automatically re-engage at the precise angular position. To date, no other overload protection equipment responds as quickly without elaborate monitoring systems. Conventional couplings typically take a full second to disengage.

Rimtec safety couplings are designed with integral precision roll or ball guides, which guarantee a totally backlash-free transmission of torque in both directions of rotation and under high acceleration. The couplings are uniquely designed with a pre-stressed, degressive Belleville spring that generates extremely fast switching times, and protects equipment from even ultra-short surges in speed.

Benefits/features include:

	Zero backlash operation
	Exact transmission of the rotational movement
	High stiffness and low inertia
	Low residual friction after disengagement
	Smooth operation
	Safety feature -- emits a signal when overload occurs
	Reliability, precision, power and repeatability -- all in one package
	No wear, maintenance-free -- built to last
	Meets machine manufacturing standards for automated production and assembly machine

Typical Applications

Safety Couplings

Several safety coupling types are available:

DBK/DK Torque Limiting Couplings with Collet Clamp
DBK/B Torque Limiting Couplings with Conical Hubs
DMK/DS Torque Limiting Couplings with Servo-Insert for Dampening
Direct-drive couplings that compensate for misalignment via torsion-proof metal bellows.

Torque ranges are available from 9 lb-in (1 Nm) to 14,160 lb-in
(1600 Nm) on shafts from 1/4" (6 mm) to 3-1/2" (90 mm).

DMK/C Torque Limiting Couplings with Slide Bearing
DMK/L Torque Limiting Couplings with Roller Bearing for Extended Belt
Designed with slide or roller bearings to accommodate radial or axial loads, and varying belt widths.

These pulley-type couplings handle torques from 265 lb-in (30 Nm)
to 14,160 lb-in (1600 Nm) on shaft sizes from 1/2" (12 mm) to
3-1/2" (90 mm).

For safety coupling dimensions and technical ratings, and/or mounting instructions, follow the hyperlinks above, or use the pull-down menu at the top of this page.

If you’re not sure which product type best suits your particular application, try our online selection guide, or feel free to contact our technical experts for assistance by filling out our application assistance/inquiry form.

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Toll Free: 877-4RIMTEC (877-474-6832) ~ Phone: 630-628-0036
Fax: 630-628-0041 ~ Email: help@RimtecCorporation.com
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