Flexible shaft coupling provides low-cost connection solution

The Budgetbeam flexible shaft coupling from Abssac is a low-cost connection solution ideal for closed loop encoder and servomotor applications, as well as lead screw to motor connection both of which require high torsional stiffness to avoid loss of registration.

In any application, where a flexible shaft coupling is used, it is vital that the correct specification is chosen. The ideal shaft coupling has to reliably transmit torque, without backlash, but also absorb the shaft misalignments that can occur during operation.

Other factors that have to be taken into account include, operating environment and temperature, direction of rotation, angular or parallel offset requirements to name a few.

Axial movement of the shafts is also a factor that is rarely accommodated in mechanical designs, but can be a limiting factor if thermal expansion is a parameter that requires consideration. In short, a flexible shaft coupling isn’t just a physical connection, but a truly vital part of any machine’s functionality.

The Budgetbeam has been developed through over 40 years of application experience where performance, reliability and low unit cost were the objectives.

The design of the Budgetbeam shaft coupling uses a proven helical beam geometry configuration in one, two or three starts, but maintaining a single piece construction. The unique design delivers high torsional stiffness and torque transmission capability, but also absorbs shaft misalignments. A perfected manufacturing process ensures product quality which ultimately translates into fit and forget reliability.

Attaching the shaft coupling to the motor shaft and driven shaft couldn’t be easier. Two designs are available. The set screw shaft attachment design, uses two sets of grub screws at 120 degrees apart to affix directly on to the shaft at each hub end. Secondly, the integral clamp attachment design, which ensures shaft concentricity and total shaft clamping.

Abssac also offers the availability of special designs, which can suit individual applications on attachment, performance and budget.

Manufactured form high grade aluminium, the Budgetbeam shaft coupling can accept up to 5 degrees of angular and 0.1mm of parallel shaft misalignment. Stocked in metric bores from 4mm, 5mm, 6mm, 7mm, 8mm, 10mm to 12mm the Budgetbeam shaft coupling is a low-cost superior way of ensuring torsional wind up does not enter into your drive designs.