28mm Motors

28mm


*Based on adequate air flow around motor, i.e., open air stream behind propeller
**Max I can be present for 30 seconds
All Afterburner motors are rated for 60,000 RPM operation and use ABEC 5 bearings
For the best efficiency, your ESC should be setup with 8º to 15º advance, and a switching rate of 10 to 20kHz.
The above motors have 4 poles.

(Lead Rear Exit) Kv Io@8V Rm P In* I Max I** Max V Dimensions (Dia. X Length) Shaft Dia Weight
MR-028-056-2800V2 2800RPM/V 2.50A 0.007 Ω 500W 57A 69A 21V 28 x 56mm 3.17mm 160g
MR-028-056-1900V2 1900RPM/V 1.30A 0.016 Ω 500W 44A 52A 32V 28 x 56mm 3.17mm 160g
MR-028-056-1400V2 1400RPM/V 0.90A 0.025 Ω 500W 36A 43A 43V 28 x 56mm 3.17mm 160g
MR-028-056-0900V2 900RPM/V 0.45A 0.053 Ω 500W 26A 31A 65V 28 x 56mm 3.17mm 160g
Model(Lead Rear Exit) Kv Io@8V Rm P In* I Max I** Max V Dimensions (Dia. X Length) Shaft Dia Weight
MR-028-040-3400V2 3400RPM/V 2.00A 0.010 Ω 350W 42A 50A 18V 28 x 40mm 3.17mm 100g
MR-028-040-2500V2 2500RPM/V 1.20A 0.016 Ω 350W 37A 45A 24V 28 x 40mm 3.17mm 100g
MR-028-040-2200V2 2200RPM/V 1.00A 0.021 Ω 350W 33A 40A 27V 28 x 40mm 3.17mm 100g
MR-028-040-1700V2 1700RPM/V 0.65A 0.036 Ω 350W 27A 32A 35V 28 x 40mm 3.17mm 100g
MR-028-040-1200V2 1200RPM/V 0.50A 0.066 Ω 350W 20A 24A 50V 28 x 40mm 3.17mm 100g
MR-028-040-1000V2 1000RPM/V 0.30A 0.101 Ω 350W 17A 20A 60V 28 x 40mm 3.17mm 100g
Model(Lead Rear Exit) Kv Io@8V Rm P In* I Max I** Max V Dimensions(Dia. X Length) Shaft Dia Weight
MR-028-032-4200V2 4200RPM/V 1.80A 0.013 Ω 275W 33A 40A 14V 28 x 32mm 3.17mm 70g
MR-028-032-3400V2 3400RPM/V 1.30A 0.020 Ω 275W 29A 35A 18V 28 x 32mm 3.17mm 70g
MR-028-032-2800V2 2800RPM/V 1.00A 0.027 Ω 275W 27A 32A 21V 28 x 32mm 3.17mm 70g
MR-028-032-2400V2 2400RPM/V 0.75A 0.036 Ω 275W 24A 29A 25V 28 x 32mm 3.17mm 70g
MR-028-032-1900V2 1900RPM/V 0.50A 0.058 Ω 275W 20A 23A 32V 28 x 32mm 3.17mm 70g
MR-028-032-1500V2 1500RPM/V 0.40A 0.082 Ω 275W 17A 20A 40V 28 x 32mm 3.17mm 70g
Model(Lead Side Exit) Kv Io@8V Rm P In* I Max I** Max V Dimensions (Dia. X Length) Shaft Dia Weight
MR-028-056-2800V2SE 2800RPM/V 2.50A 0.007 Ω 500W 57A 69A 21V 28 x 56mm 3.17mm 160g
MR-028-056-1900V2SE 1900RPM/V 1.30A 0.016 Ω 500W 44A 52A 32V 28 x 56mm 3.17mm 160g
MR-028-056-1400V2SE 1400RPM/V 0.90A 0.025 Ω 500W 36A 43A 43V 28 x 56mm 3.17mm 160g
MR-028-056-0900V2SE 900RPM/V 0.45A 0.053 Ω 500W 26A 31A 65V 28 x 56mm 3.17mm 160g
Model(Lead Side Exit) Kv Io@8V Rm P In* I Max I** Max V Dimensions(Dia. X Length) Shaft Dia Weight
MR-028-040-3400V2SE 3400RPM/V 2.00A 0.010 Ω 350W 42A 50A 18V 28 x 40mm 3.17mm 100g
MR-028-040-2500V2SE 2500RPM/V 1.20A 0.016 Ω 350W 37A 45A 24V 28 x 40mm 3.17mm 100g
MR-028-040-2200V2SE 2200RPM/V 1.00A 0.021 Ω 350W 33A 40A 27V 28 x 40mm 3.17mm 100g
MR-028-040-1700V2SE 1700RPM/V 0.65A 0.036 Ω 350W 27A 32A 35V 28 x 40mm 3.17mm 100g
MR-028-040-1200V2SE 1200RPM/V 0.50A 0.066 Ω 350W 20A 24A 50V 28 x 40mm 3.17mm 100g
MR-028-040-1000V2SE 1000RPM/V 0.30A 0.101 Ω 350W 17A 20A 60V 28 x 40mm 3.17mm 100g
Model(Lead Side Exit) Kv Io@8V Rm P In* I Max I** Max V Dimensions (Dia. X Length) Shaft Dia Weight
MR-028-032-4200V2SE 4200RPM/V 1.80A 0.013 Ω 275W 33A 40A 14V 28 x 32mm 3.17mm 70g
MR-028-032-3400V2SE 3400RPM/V 1.30A 0.020 Ω 275W 29A 35A 18V 28 x 32mm 3.17mm 70g
MR-028-032-2800V2SE 2800RPM/V 1.00A 0.027 Ω 275W 27A 32A 21V 28 x 32mm 3.17mm 70g
MR-028-032-2400V2SE 2400RPM/V 0.75A 0.036 Ω 275W 24A 29A 25V 28 x 32mm 3.17mm 70g
MR-028-032-1900V2SE 1900RPM/V 0.50A 0.058 Ω 275W 20A 23A 32V 28 x 32mm 3.17mm 70g
MR-028-032-1500V2SE 1500RPM/V 0.40A 0.082 Ω 275W 17A 20A 40V 28 x 32mm 3.17mm 70g
MR-028-032-1200V2SE 1200RPM/V 0.25A 0.137 Ω 275W 13A 16A 50V 28 x 32mm 3.17mm 70g
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Product type
DC Brushless Motors for RC Applications