Unique-Bargains Helical Beam Coupler 15mm to 12mm 32mm x 40mm

Shaft Coupling for 15 mm to 12 mm

This helical beam coupling connects a 15 mm shaft to a 12 mm shaft in light to medium duty drive systems. It suits encoders, instrumentation, lead screws, small pumps and feed rollers where torsional flexibility is required. The aluminium alloy body weighs 66 g and measures 32 mm in diameter by 40 mm in length. Buyers needing a different bore combination or a rigid coupling will not find it here.

Sustained Misalignment Absorption

The spring action of the helical beam continuously absorbs parallel offset, angular misalignment and shaft end-play during extended operation. This reduces stress on connected bearings and maintains torque transmission without the backlash that can develop in rigid joints over time. The coiling clamping screw type holds each shaft securely while the flexible element works. Applications demanding high torsional stiffness or zero wind-up are not served by this design.

Aluminium Build with Clamping Screws

The silver tone aluminium alloy construction resists corrosion in typical workshop environments while keeping rotating mass low. Two coiling clamping screws provide a firm grip on both the 15 mm and 12 mm shafts without the need for keyways or set screws that can mar precision surfaces. The 32 mm outer diameter fits compact machine envelopes. Installations requiring stainless steel, larger diameters or flange mounting must look elsewhere.