Ruland MBC25-9-6-A Bellows Clamp Coupling 9 mm x 6 mm Bores
Ruland MBC25-9-6-A 2024 or 7075 Aluminum Hubs Bellows Coupling, Clamp Style, 9 mm x 6 mm Bores, 25.4 mm OD, 33.3 mm Length.
| DIMENSIONS | |||
|---|---|---|---|
| Bore (B1) | 9 mm | Small Bore (B2) | 6 mm |
| B1 Max Shaft Penetration | 15.9 mm | B2 Max Shaft Penetration | 15.9 mm |
| Outer Diameter (OD) | 25.4 mm | Bore Tolerance | +0.03 mm / -0.00 mm |
| Length (L) | 34.2 mm | Length Tolerance | +/- 0.76 mm |
| Hub Width (LH) | 11.85 mm | Recommended Shaft Tolerance | +0.000 mm / -0.013 mm |
| FASTENING HARDWARE | |||
| Forged Clamp Screw | M3 | Screw Material | Alloy Steel |
| Hex Wrench Size | 2.5 mm | Screw Finish | Black Oxide |
| Seating Torque | 2.1 Nm | Number of Screws | 2 ea |
| PEFORMANCE SPECIFICATIONS | |||
| Dynamic Torque Reversing | 1.70 Nm | Angular Misalignment | 1.5° |
| Dynamic Torque Non-Reversing | 3.40 Nm | Parallel Misalignment | 0.10 mm |
| Static Torque | 6.8 Nm | Axial Motion | 0.30 mm |
| Torsional Stiffness | 27 Nm/Deg | Moment of Inertia | 2.745 x10-6 kg-m2 |
| Maximum Speed | 10,000 RPM | Full Bearing Support Required? | Yes |
| Zero-Backlash? | Yes | Balanced Design | Yes |
| RECOMMENDED INSTALLATION TOOLS | |||
| Torque Wrench | TW:BT-1R-1/4-18.3 | Recommended Hex Key | Metric Hex Keys |
| ADDITIONAL INFORMATION | |||
| Material Specification | Hubs: 2024-T351 Aluminum Bar Bellows: Type 321 Stainless Steel | Temperature | -40°F to 200°F (-40°C to 93°C) |
| Finish Specification | Sulfuric Anodized MIL-A-8625 Type II, Class 2 and ASTM B580 Type B Black Anodize | Bellows Attachment Method | Epoxy |
| Manufacturer | Ruland Manufacturing | Country of Origin | USA |
| Weight (lbs) | 0.073900 | UPC | 634529106303 |
| Tariff Code | 8483.60.8000 | UNSPC | 31163018 |





