Slit Couplings
Ruland slit couplings are a good starting point for designers looking for a high performance coupling with high misalignment accommodation. They are manufactured by Reliance Precision Ltd., in their Cork, Ireland factory from a single piece of 7075 aluminum for low inertia and have a balanced design for reduced vibration at speeds up to 70,000 RPM. The patented slit design has radiused edges that reduce stress on the coupling allowing for high misalignment and torsional stiffness with low bearing loads. Slit couplings have comparable torque to a single disc coupling, torsional stiffness to a stainless steel beam coupling, and misalignment to an aluminum beam coupling. This set of features allows slit couplings to be utilized by designers developing mechanical systems in a variety of industries including solar, semiconductor, medical, and test and measurement. Ruland stocks and bores to size slit couplings in bore sizes ranging from 1.5mm to 12mm or 1/8” to 3/8”. All slit couplings are RoHS3 and REACH compliant.
About
Long style slit couplings have added torque and misalignment capabilities compared to the short styles. They are an alloy, one-piece configuration designed to provide smooth transmission of motion, high torsional stiffness, low bearing loads, and long life. Bore sizes start at 1.5mm with outer diameters as small as 6mm for use in sensitive precision applications. Ruland slit couplings are RoHS3 and REACH compliant.
Short style slit couplings are ideal for compact installations. They are a one-piece design made from 7075 aluminum for a long, zero-backlash life. The two sets of identical slits provides the best balance between zero backlash, torsional stiffness and low bearing load. Slit couplings can accommodate parallel misalignment, angular misalignment, and axial motion. Ruland slit couplings are RoHS3 and REACH compliant.
Why Ruland?
- Speeds up to 70,000 RPM with reduced vibrations due to a balanced design.
- Micro-bore sizes start at 1.5mm for sensitive precision scientific and medical systems.
- Reduced bearing loads and enhanced misalignment tolerance. The patented slit design features radiused edges that improve coupling longevity and torsional stiffness.
- Eliminates the performance limitations while being a suitable alternative to:
- Stainless steel beam couplings which have high inertia.
- Aluminum beam couplings which have limited torque and torsional stiffness capabilities.
- Single disc couplings which can not accommodate parallel misalignment.
CUSTOM DESIGNS
- PEEK or plastic slit couplings
- Electrically insulated slit couplings
- Special hub interfaces
- Special bore sizes and geometry
- Special hub lengths, widths, and outside diameters
- Different materials, finishes, or colors
- Custom hardware requests
- And Many Others... Please Contact Us for More Information
Products
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As low as $57.07 $140.02Ruland RSS8-4-4-A, 0.250" x 0.250" Short Slit Coupling, Aluminum, Set Screw Style, 0.512" OD, 0.661" length
Part number | Bore (B1) | Small Bore (B2) | Length (L) | Material | Outer Diameter (OD) | Maximum Speed |
---|---|---|---|---|---|---|
RSS8-4-4-A | 0.2500 in | 0.2500 in | 0.661 in | Aluminum | 0.512 in | 30,000 RPM |