Overview
Ruland MBC41-14-12-A is a high-stiffness, zero-backlash bellows coupling designed for precision positioning, stepper servo, and encoder applications. The coupling features 14mm x 12mm bores, 41.3mm OD, and 51.7mm length. Constructed with anodized aluminum hubs and a stainless steel bellows, this coupling delivers torsional rigidity while accommodating shaft misalignment.
Key Features
- Fewer convolutions than comparably sized increased misalignment styles, allowing for increased torsional stiffness
- Balanced design for reduced vibration at high speeds up to 10,000 RPM
- Thin-walled bellows flex while remaining rigid under torsional loads, accommodating all forms of misalignment
- Lightweight aluminum hubs and stainless steel bellows for low inertia
- Metric hardware tested beyond DIN 912 12.9 standards for maximum torque capabilities
Technical Specifications
MBC41-14-12-A dimensions and bore specifications:
- Input bore: 14mm diameter
- Output bore: 12mm diameter
- Outside diameter: 41.3mm
- Overall length: 51.7mm
- Maximum speed: 10,000 RPM
- Angular misalignment capacity: 2.0°
- Parallel misalignment capacity: 0.25mm
- Axial motion capacity: 0.50mm
- Hub material: Anodized aluminum
- Bellows material: Stainless steel
- Fastening style: Clamp (set screws with M4 metric hardware)
Typical Applications
The MBC41-14-12-A is the ideal choice for precision positioning applications including:
- Stepper and servo motor drive systems
- Precision encoder couplings
- Automated test and measurement equipment
- Laboratory and instrumentation machinery
- Printing and packaging machinery
- Robotics and linear motion systems
Compatibility & Replacements
Compatible With
- Stepper motors (NEMA 17–NEMA 34)
- Servo motors with 12mm and 14mm bore shafts
- Precision encoders
- Lead screws and ball screws (where bore size matches)
- Optical and magnetic encoders
Replaces / Drop-In Replacement For
- Similar high-stiffness 14mm x 12mm bellows couplings from other manufacturers
- Verify specific part compatibility with your system integrator before ordering
Works With
- AC and DC stepper driver systems
- Servo control systems (analog and digital)
- Industrial motion control platforms
- CNC and automation machinery
- Custom-designed mechanical assemblies requiring zero-backlash power transmission
