CTD-BTorque limiting wing knobs

Threaded hole

Technopolymer

Technical datasheet

CTD-B

Reset

Catalogue	Description	D	d	L	d₁	d₂	l₂	b	h	C# [Nm]

221901-C9	CTD.48 B-M5-2-C9	48	M5	28	26	10	9	20	8	2	35
221902-C9	CTD.48 B-M5-3-C9	48	M5	28	26	10	9	20	8	3	36
221905-C9	CTD.48 B-M6-2-C9	48	M6	28	26	10	9	20	8	2	34
221906-C9	CTD.48 B-M6-3-C9	48	M6	28	26	10	9	20	8	3	35

# Maximum torque (±15%)

Main specifications
General information

Material

Glass-fibre reinforced polyamide based (PA) technopolymer, black (C9) or orange (C2) colour, matte finish.

Torque limiting mechanism

Nickel-plated steel.

Standard executions

CTD-B-2: nickel-plated steel boss with threaded blind hole, maximum torque 2Nm.
CTD-B-3: nickel-plated steel boss with threaded blind hole, maximum torque 3Nm.
CTD-p-2: nickel-plated steel threaded screw, maximum torque 2Nm.
CTD-p-3: nickel-plated steel threaded screw, maximum torque 3Nm.

Features and applications

CTD wing knobs are used when the applied tightening torque must not exceed a preset value.

The torque transmission from the wing knob to the clamping element takes place by means of a spring-based mechanical system which prevents the overcoming of the established torque. Upon exceeding the established torque, a 'click' sound will be heard to indicate that the maximum tightening has been reached. By turning the knob anticlockwise the mechanism unlocks.