OS Engine OMA-5025-375

Alternating electric motor with rotating casing, diameter 50mm, length 57.5mm, weight 405g, 375 rpm. to V, power supply Lixx 7-8s, shaft 6 mm, regulator 70-90A, recommended propeller 15x8 ", power 1600W at 33.6V.


New product


In stock: 1 pcs
Stores and delivery dates
Price with VAT:
(DPH CZ 21%)
165,13 €
Price without VAT
136,47 €


More info

More info

If you are accustomed to high performance and superior quality and reliability of combustion engines OS, I'll be glad that you can now enjoy the same advantages for AC motors OS! They have been developed and designed to set a "gold standard" for electric cars as well, as is the rule for their methyl or gasoline counterparts. 80 years experience in OS developers ensures that even the new motors offer the same legendary quality and reliability.

OS brushless motors feature an integrated ventilation system, which increases their effectiveness and allows you to work at high current load and give better performance. A key element of this system is unique centrifugal fan which sucks air through a specially shaped air vents through the coil and around the magnet for considerably better cooling.

AC motors are robust OS restrictive risk of deformities, solid shafts of stainless steel stored in high-quality bearings, solid and secure rear mounting system with accurate propeller.

OS engines are due to its large twisting moment, suitable for large propellers without the need for a gearbox, which ensures high efficiency of the entire drive.

Labeling system engines: OMA OS / OMH xxyy / zz
OMA - engine aircraft
OMH - engine helicopter
xx - rotor diameter in mm
YY - magnet length in mm
zz - number of rpm to V


OMA-5025-375 is a brushless motor learned to drive models with a flying weight of up to 6000 g with power from six to osmičlánkového Li-poly battery. Perfect for electrification models designed to drive 10 to 15 cc two-stroke engine (or 15 to 20 cc four-stroke).

Motor mounting: OMA-5025-375 is designed for rear mounting. Motor mounting, use four screws M4. Motor bulkhead should be from 6-8 mm air plywood.

Set engine includes: Brushless Motor OMA-5025-375 cables with 4mm gold plated connectors, collet carrier for fixed propeller cross for rear mounting screws, gold-plated connectors 3 to 4 mm (female), instructions.

Power LiXX Articles 6-7
The speed at Volt [ot./min/V] 375
Number of turns 16
Internal resistance [mOhm] 27.5
No-load current (10 V) [A] 2
Operating current [A] 50
Max. peak current (5 sec) [A] 90
max. efficiency [%] 85
Diameter [mm] 50
Length [mm] 57.5
Shaft diameter [mm] 6
Weight [g] 405
Number of poles 14
Timing [°] 20-25
The regulator [A] 70-90
Glider in weight [g] 6500
Trainer to the weight [g] 5500
Acrobat in weight [g] 4500
3D into the mass [g] 3500
Recommended propeller 7S: 16x8 "
Recommended propeller 8S: 15x8 ", 15x10"