The 1500 series has power ranges from 150 watts to over 4,000 watts. The maximum rpm is 60,000. The can diameter is 1.53” smooth and 1.73’ for the finned can. The motors have 12 slot stators and 4 pole rotors. The shaft diameter is 5 mm and is 0.75” long. The motors weigh about 10-12 oz depending on type.
The first two numbers of a Neu motor designate the diameter. For example the 1500 series has a 15mm rotor.
The second two numbers denotes the rotor length. For example xx09, xx12, and xx15. Larger numbers means a longer rotor. A longer rotor generates more torque.
The third two numbers usually are the number of turns. For example 1.5, 1, and 2.5 The higher number the more turns.
The next letter d/y is the coil configuration: d = delta or triangle. y = wye or star.
A d coil configuration is a motor that has 1.73 times higher kv and 1.73 times less torque than a y motor configuration with the same turns. For example a 1515/1d has 4100kv and a 1515/1y has 2200kv. A motor with windings in delta configuration gives low torque at low rpm, but can give higher top rpm. Wye configuration gives high torque at low rpm, but not as high top rpm.
The last letter f/s is the type of can: f = finned. s = smooth can
http://www.neumotors.com/20061222/1500_series_.html
Castle Neu
-Casing closed (the new NEU has a closed case)
-Kevlar wrapped magnets Not carbon inside as the "real" Neu
-Wires comes out on the side, not in the back
-The motor shaft has a flat spot
-5x16x5mm Bearings Japan (Koyo or NMB - CNC grade, 100K RPM rated)
-Laminations M19 non-oriented magnetic steel Japan
-Magnets Same as Neu – China N38UH magnet
-Shaft material Stainless - USA
-Case T6061 – China
-US source 10 gauge silicone insulated wire
-60,000 rpm up to 200F
The Tekno RC Edition Neu Motors feature:
Larger 5x13x4mm bearings front and back
Sealed motor can
Rear end bell is safely secured by Neu's latest design
Flat spot along length of shaft
