Purchase now: Wittenstein NP015S-MF2-25-0C1-1S Gearhead
Purchase now: Atlantech Drives provides you the Wittenstein Alpha NP015S-MF2-25-0C1-1S. This is a high-torque **2-Stage Planetary Gearbox** designed for applications requiring significant speed reduction. With a **Ratio of 25:1**, this unit allows a high-speed servo motor to drive heavy loads with precision. Despite being a 2-stage unit («MF2»), the NP015S housing remains remarkably compact, allowing for integration into tight machinery spaces where torque demand is high but space is limited.
Technical Specifications and Interface 0C1
The «25:1″ ratio is achieved by cascading two planetary stages internally. Note the specific interface code **»-0C1″**. While similar to «1C1», the **»0″** prefix often indicates a specific variation in the input shaft diameter or pilot tolerance tailored to a specific range of smaller motors. Do not assume 0C1 and 1C1 are interchangeable; check the bolt pattern carefully. The output is a standard smooth shaft (**1S**) for backlash-free connection.
- Part Number: NP015S-MF2-25-0C1-1S.
- Type: 2-Stage Planetary Gearbox.
- Ratio: 25 (i=25).
- Size: 015.
- Input Interface: Code 0C1 (Verify motor dims).
- Nominal Torque: High multiplication factor.
- Efficiency: > 94% (2-Stage).
- Mounting: Flange B5.
- Life: 20,000h (S1).
Expert Installation Advice: 2-Stage Stiffness
Handling wind-up. Expert Tip: Two-stage gearboxes naturally have slightly lower torsional stiffness than single-stage units due to the extra gear mesh. However, the Wittenstein NP series is optimized to minimize this «wind-up.» When tuning your servo drive PID loops, you may need to adjust the stiffness parameters slightly differently compared to a 1-stage gearbox to avoid resonance at the load.
Frequently Asked Questions (FAQs)
Q: Why is the efficiency lower than the Ratio 7?
A: It’s a 2-stage gearbox. The energy must pass through two sets of gears and bearings, resulting in slightly higher friction losses (94% vs 97%). This is normal physics for all planetary gearboxes.
Q: Does 0C1 fit NEMA 23 motors?
A: It depends on the specific adapter plate attached. The «0C1» code refers to a Wittenstein dimension. You must compare the dimensions (Shaft 6.35mm/9mm/11mm?) with your motor spec.
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