Product category:
Gears, brakes, couplings and engines
News Release from: Ruland Manufacturing Co | Subject: Nomar rigid shaft couplings
Edited by the Engineeringtalk Editorial
Team on 19 August 2003
The "third way" to rigid couplings
Nomar rigid shaft couplings are available in a three-piece design by special order.
Ruland Nomar rigid shaft couplings are available in a three-piece design by special order This design allows for more convenient exchange or adjusting of coupled shafts, particularly where the shaft cannot be axially detached
This article was originally published on Engineeringtalk on 15 Jul 2003 at 8.00am (UK)
Related stories
Beam couplings accommodate misalignment
Beam-style couplings are one-piece aluminium or stainless-steel components, which incorporate spiral cuts to accommodate angular misalignment, parallel misalignment and axial motion.
Couplings slide to accomodate misalignment
Paradrive oldham couplings for motion control applications comprise two aluminium hubs with drive tenons that mate with a floating centre member.
Either side of the coupling can be detached and the shaft removed without disturbing the other shaft connection.
The three-piece design also accommodates a small variation between the sizes of the shafts being connected by clamping independently on the two shafts.
Nomar rigid shaft couplings from Ruland are available with straight or stepped bores from 0.25 to 2in in the inch series and 6 to 50mm in the metric series in aluminium, carbon steel and stainless steel.
One- and two-piece styles with or without keyways are available as standard parts.
Keyways are available on the three-piece style as well.
Straight-bore Nomar rigid couplings, including the three-piece style, are precision honed to ensure shaft alignment and a tight fit for optimum holding power.
All Nomar rigid couplings are supplied with Ruland's novel Nypatch antivibration socket head cap screws to reduce the likelihood of unwanted screw loosening.
The benefits of Ruland Nomar rigid shaft couplings include their precise alignment, easy installation, high torque capacity and zero-backlash.
They are suitable for applications where misalignment is neither present nor desired, including connecting line shafting or attaching a motor to a gearbox.
Nomar rigid shaft couplings are increasingly used in motion control applications with properly aligned components.
For misaligned components, Ruland offers Flexbeam shaft couplings to accommodate misalignment.
• Ruland Manufacturing Co: contact details and other news
• Email this article to a colleague
• Register for the free Engineeringtalk email newsletter
• Engineeringtalk Home Page
Search the Pro-Talk network of sites
