Precision (Spindle) — Precision Spindle Induction Motors up to 750 hp, up to 40 000 rpm
Country: · Model: Precision (Spindle)
Precision spindle induction motors with a power of up to 750 hp (about 559 kW) rotate at up to 40 000 rpm at a supply frequency of up to 2000 Hz. The vibration displacement does not exceed 0.00005 inch (about 1.3 µm), so they are used where rotation accuracy determines machining quality.
- Type
- induction, single-speed and adjustable
- Power
- up to 750 hp (≈559 kW)
- Rotational speed
- up to 40 000 rpm
- Supply frequency
- up to 2000 Hz
Technical specifications
| Type | induction, single-speed and adjustable |
|---|---|
| Power | up to 750 hp (≈559 kW) |
| Rotational speed | up to 40 000 rpm |
| Supply frequency | up to 2000 Hz |
| Voltage | up to 600 V, 3 phase |
| Vibration | 0.00005 inch (≈1.3 µm) peak-to-peak displacement |
| Shaft runout | not more than 0.0005 inch (≈13 µm) TIR |
| Bearings | paired angular contact precision ABEC 7 on both sides |
| Frame sizes | Own series 315–532, NEMA 56–449, IEC 90–315, liquid-cooled 140S–580S; NEMA mounting dimensions |
| Enclosure | enclosed, drip-proof, liquid cooling |
| Insulation | class B, F, H, VPI |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The radial shaft runout is not more than 0.0005 inch (about 13 µm) total indicator reading. This accuracy comes from a rigid cast iron or steel housing with additional bearing supports, paired angular contact ABEC 7 bearings at both ends of the shaft, and precision rotor balancing. The mounting dimensions conform to NEMA, so the motor is fitted to existing equipment. Frame sizes cover the own series 315–532, NEMA 56–449, IEC 90–315 and liquid-cooled 140S–580S, with a voltage of up to 600 V. The core is made of electrical steel M-19, M-36 or M-45. For high speeds the bearings are lubricated with an oil jet. Insulation is class B, F, H with vacuum impregnation. Options cover encoders, resolvers, temperature sensors, vibration mounts and vibration sensors.
How to choose
The deciding parameters here are speed, shaft runout and the cooling method, since the enclosed, drip-proof and liquid-cooled versions work differently. For grinding machines, spindles and test stands this series is the one needed. If the speed does not exceed 30 000 rpm, High Speed Air Cooled up to 450 hp can be considered, and for inverter operation with a constant-torque range of up to 2000:1 see SS-100. When replacing special machine tool spindle motors, take into account American frame sizes and the 60 Hz frequency.
Request a price and lead time
Precision (Spindle) — Precision Spindle Induction Motors up to 750 hp, up to 40 000 rpm. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What rotation accuracy do Precision motors have?
Vibration displacement up to 0.00005 inch (about 1.3 µm), shaft runout up to 0.0005 inch (about 13 µm).
What is the maximum speed and supply frequency?
Up to 40 000 rpm at a supply frequency of up to 2000 Hz, with a voltage of up to 600 V.
Which bearings are installed?
Paired angular contact precision bearings of class ABEC 7 on both sides of the shaft.
Which frame sizes are possible?
Own series 315–532, NEMA 56–449, IEC 90–315 and liquid-cooled 140S–580S, as well as special ones.
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Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.