Purchase now: Wittenstein NP025S-MF1-5-1E1-1S Gearbox
Purchase now: Atlantech Drives provides you the Wittenstein Alpha NP025S-MF1-5-1E1-1S, a robust **Size 025 Planetary Gearbox** from the **alpha Basic Line**. The NP025 frame offers a significant step up in torque capacity and output bearing strength compared to the 015 series. Configured with a **Ratio of 5:1**, this single-stage unit is optimized for high-speed automation tasks, such as belt-driven linear axes, where the motor speed is reduced moderately to increase torque while maintaining high linear velocity.
Technical Specifications and Size 025 Power
The NP025S features an aluminum housing with a black anodized or coated finish. The **»-1E1″** suffix identifies the **Motor Adapter Interface**, compatible with a wide range of medium-sized servo motors (typically 60mm or 80mm frame sizes, but verify shaft diameter). The «1S» output shaft is smooth, ensuring a perfect friction lock with the load coupling. This unit is factory filled with lifetime grease and sealed to **IP64**, making it maintenance-free for its entire service life.
- Part Number: NP025S-MF1-5-1E1-1S.
- Series: NP (New Planetary).
- Size: 025 (Medium Duty).
- Ratio: 5 (i=5).
- Input Interface: Code 1E1.
- Output Shaft: Smooth (1S).
- Torque Rating: High dynamic torque.
- Max Input Speed: High speed capable.
Expert Maintenance: Output Bearing Load
Belt tension matters. Expert Tip: Size 025 gearboxes are often used to drive timing belts directly via a pulley on the output shaft. While the NP025 has robust ball bearings, excessive radial load (belt tension) is the #1 killer of these units. Always calculate the radial force (Fr) and compare it to the «Max Radial Load» in the datasheet (typically located at the center of the shaft). Overtightening the belt will cook the output bearings.
Frequently Asked Questions (FAQs)
Q: What does the «E» stand for in 1E1?
A: It is an internal Wittenstein code for the adapter plate dimensions (Bolt circle, pilot). It doesn’t stand for a specific standard (like NEMA or IEC) directly, but maps to them.
Q: Is this suitable for vertical mounting?
A: Yes, the grease lubrication allows mounting in any orientation (IM B5, V1, V3) without issue.
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