Ruland four beam couplings are zero-backlash and have a balanced design for reduced vibration at high speeds up to 6,000 RPM. This MW-series beam coupling is machined from a single piece of aluminum and features two sets of two spiral cuts allowing for higher torque capacity and lower windup than single beam couplings. It has pure metric outer diameter and length dimensions to fit in a smaller envelope than Ruland P-series beam couplings for easier interchanges with single beam couplings. This coupling is clamp style and has 10mm x 0.375" bores, 1.181" (30.0mm) OD, and 1.496" (38.0mm) length. The use of 7075 aluminum creates a lightweight low inertia coupling that is best suited for encoders. Hardware is metric and tests beyond DIN 912 12.9 standards for maximum torque capabilities. This four beam coupling is RoHS and REACH compliant.
| Bore Dia. | 10 mm x 3/8 in |
|---|---|
| Max. RPM | 6000 RPM |
| Outside Dia. | 1.181 in |
| Overall Length | 1.496 in |
| Length | 1.496 in |
| Weight | 0.1304 lb |
| Material | Aluminum |
| Max. Temp. Range (F) | -40°F to 225°F (-40°C to 107°C) |
| Style | Clamp |
| Torsional Stiffness (Deg./In.-Lbs.) | 0.71 Deg/Nm |
| Screw Size | M4 |
| Max. Parallel Misalignment (In.) | 0.015 |
| Max. Angular Misalignment | 3 deg |
| Dynamic Torque Reversing | 1.73 N-m |
| Number of Screws | 2 ea |
| Bore Tolerance | +0.001 in, -0.000 in |
| Measurement Type | Metric, Inch |
| Axial Motion | 0.01 in |
| Recommended Shaft Tolerance | +0.0000 in, -0.0005 in |
| Dynamic Torque Non-Reversing | 3.45 N-m |
| Fastening Dimensions | Metric |
| Screw Seating Torque | 4.6 N-m |
| Screw Finish | Black Oxide |
| Screw Material | Alloy Steel |
| Moment of Inertia | 7.958x10-6 kg-m2 |
| Static Torque | 6.9 N-m |
| B1 Shaft Penetration | 18.2 mm |
| B2 Shaft Penetration | 0.717 in |
| Country of Origin (subject to change) | United States |
| Package Quantity | 1 |