Naismith Engineering

Naismith Engineering
149 Heidelberg Rd
Northcote VIC 3070
Tel: 03 9489 9811
Fax: 03 9482 1474

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Miniature disc couplings

RULAND Manufacturing, represented in Australia by Naismith Engineering & Manufacturing, has added Discflex miniature disc couplings to its zero-backlash motion control coupling line.

The couplings come in both single and double disc styles and are an assembly of two anodised aluminum hubs, a centre spacer (double disc style only) and multiple flat stainless steel disc springs to transmit torque. The thin discs allow for a substantial amount of misalignment between shafts while remaining rigid under torque loads. Parallel misalignment is accommodated by the double disc style or by two single disc couplings used in tandem.

Disc couplings are high-performance motion control couplings with zero backlash, speeds of up to 10,000 rpm, strength and torsional stiffness characteristics, as well as low inertia for today’s highly responsive systems. Double disc couplings are used in typical servomotor lead screw applications while single disc couplings can be used when a longer distance is required such as on gantry systems.

Double disc styles are available with either an anodised aluminum centre spacer or an electrically isolating acetal centre spacer. Both disc style couplings are offered in standard sizes with outside diameters from 15mm to 57mm in both Nomar clamp style and set screw style. Bore sizes from 1/8 of an inch to 1 1/4 of an inch are available as well as 3mm to 30mm sizes in the metric series.

Naismith Engineering News

Ruland unleashes stepped bore rigid couplings with keyways (7-Aug-2007)
Ruland now offers stepped bore rigid couplings with standard keyways in each bore. The couplings are two-piece style allowing for easy assembly and disassembly without moving other components. Hardware is opposing for balance, allowing for higher speeds with reduced vibration.

Beam couplings available from Naismith Engineering (16-Mar-2007)
Flexible beam couplings with high torsional rigidity are offered by Ruland Manufacturing.

Ruland introduces double wide shaft collars to its shaft collars line (30-Jan-2007)
Ruland Manufacturing Co., Inc. has expanded its line of shaft collars to include double wide versions.

Ruland shaft collars (16-Jun-2006)
SHAFT collars are widely used components in the power transmission industry. They function as mechanical stops, clamps often used on split hubs, bearing faces, and as a means for locating components on a variety of equipment.

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