The Electric Car Motor Catalogo from Ningbo BG Motor

Product catalog summary

Theoretical Speed Calculation Formula
The theoretical speed of a brushless DC motor is calculated using the formula:
Theoretical Speed = (Motor Speed × Motor Sprocket Teeth ÷ Tooth Disc Teeth × Tire Circumference (m) × 60) ÷ 1000.
Example: For a motor speed of 3500 RPM, motor sprocket teeth of 11, tooth disc teeth of 40, and tire circumference of 1.5 meters, the theoretical speed is 86.625 Km/h.

Motor Specifications and Parameters

BG-1109-800W: Voltage: 36V, Power: 800W, No-load Current: ≤4.5A, No-load Speed: 3500 RPM, Rated Torque: 2.2 N.m, Rated Speed: 3100 RPM, Rated Current: ≤23A, Efficiency: ≥80%.
BG-1109-1000W: Available in 36V and 48V, Power: 1000W, No-load Current: ≤4.8A (36V) / ≤4.2A (48V), No-load Speed: 3500 RPM, Rated Torque: 2.7 N.m, Rated Speed: 3100 RPM, Rated Current: ≤28A (36V) / ≤21A (48V), Efficiency: ≥80%.
BG-1109-1200W: Voltage: 48V, Power: 1200W, No-load Current: ≤5.6A, No-load Speed: 4200 RPM, Rated Torque: 3 N.m, Rated Speed: 3500 RPM, Rated Current: ≤26A, Efficiency: ≥80%.
BG-1109-1500W: Voltage: 48V, Power: 1500W, No-load Current: ≤6.5A, No-load Speed: 5000 RPM, Rated Torque: 3.75 N.m, Rated Speed: 3750 RPM, Rated Current: ≤30A, Efficiency: ≥80%.
BG-1109-1600W: Voltage: 48V, Power: 1600W, No-load Current: ≤6.8A, No-load Speed: 5000 RPM, Rated Torque: 4 N.m, Rated Speed: 3900 RPM, Rated Current: ≤34A, Efficiency: ≥80%.
BG-1109-1800W: Voltage: 48V, Power: 1800W, No-load Current: ≤7.6A, No-load Speed: 5200 RPM, Rated Torque: 4.5 N.m, Rated Speed: 4500 RPM, Rated Current: ≤38A, Efficiency: ≥80%.
BG-1109-2000W: Available in 60V and 48V, Power: 2000W, No-load Current: ≤7.2A (60V) / ≤9A (48V), No-load Speed: 5400 RPM (60V) / 3500 RPM (48V), Rated Torque: 5 N.m, Rated Speed: 4600 RPM (60V) / 3000 RPM (48V), Rated Current: ≤36A (60V) / ≤45A (48V), Efficiency: ≥80%.
BG-1109-3000W: Voltage: 72V, Power: 3000W, No-load Current: ≤8.8A, No-load Speed: 5800 RPM, Rated Torque: 5.4 N.m, Rated Speed: 4900 RPM, Rated Current: ≤43A, Efficiency: ≥80%.

Mechanical Dimensions and Applications
Each motor model includes mechanical dimensions and is suitable for various applications, emphasizing the versatility and efficiency of the brushless DC motors produced by Ningbo BG Motor Factory.

Catalog excerpts

The Electric Car Motor Catalogo from Ningbo BG Motor-2

NINGBO BG MOTOR FACTORY 理论车速计算公式/Theoretical speed calculation formula 理论车速=电机转速×电机链轮齿数÷牙盘齿数×轮胎周长（米）×60÷1000 The theory of the speed=motor speed×Motor sprocket teeth÷Tooth disc teeth ×Tire circumference (m)×60÷1000 举例/illustrate：电机转速/motor speed：3500rpm 电机链轮齿数/Motor sprocket teeth：11 牙盘齿数/Tooth disc teeth：40 轮

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