Nema 23 BF57HS51-2804 with BF-HPR60-L / HPS60-L Series Hybrid Bipolar Geared Stepper Motor with High Precision Planrtary Gearbox 3/4/5/7/10/16/20/25/28/30/35/40/50/70/100:1

BesFoc Nema 23 stepper motor with 51mm body length, 0.83Ω, 2.2mH,  2.8A rated current and 1N.m(141.61oz.in) holding torque, integrated a planetary gearbox of 4:1 / 5:1 / 10:1/20:1/25:1/50:1 gear ratio. A Φ9.5mm diameter rear shaft with screw holes on rear endcap is available. It's a good solution to applications that with limited space but need low speed and/or high torque.For more different stepper motors requirements (such as gearbox, brake, encoder, or integrated motors), please contact us!!!

Nema 23 Stepper Motor Electrical Specifications：

• Type: Nema23 bipolar stepper motor

• Model Name: BF57HS51-2804

• Phase: 2

• Step Angle: 1.8 degree

• Current: 2.8A

• Resistance: 0.83Ω±0.1(20℃)

• Inductance: 2.2mH±20%(1kHz 1V RMS)

• Holding Torque: 1N.cm (141.61oz.in)

• Insulation Class: B(130°); 80K Max.

• Optional Parts: Gearbox, Encoder, Brake, Integrated Driver...

Gearbox Specifications:

• Model: BF-HPR60-L / BF-HPS60-L Series

• Gearbox Type: Planetary Gearbox

• Gear Ratio: 3:1 / 4:1 / 5:1 / 7:1 / 10:1 / 16:1 / 20:1 / 25:1 / 28:1 / 30:1 / 35:1 / 40:1 / 50:1 / 70:1 / 100:1

• Efficiency: 96% / 94%

• Backlash: ≤15 arcmin - 20 arcmin

• Rated Torque: 10N.m - 32N.m

• Sundden Stop Torque: 20N.m - 64N.m

• Shaft Maximum Axial Load: 230N

• Shaft Maximum Radial Load: 400N

• Rated Input Speed: 3000rpm

• Max Input Speed: 6000rpm

• Average Life Span: 20000h

• Noise: ≤65dB

• Protection Level: iP54

Physical Specifications:

• Frame Size: Nema 23(57 x 57mm)

• Motor Length: 51mm

• Gearbox Length: 92mm / 108mm

• Gearbox Shaft Diameter: Φ14mm

• Gearbox Shaft Length: 35mm

• Gearbox Key Length: 25mm

• Motor Shaft Diameter: Φ8mm

• Motor Shaft Length: 14.5mm

• Number of Leads: 4

• Lead Length: 300mm

• BF-HPR60/HPS60-L1 Weight: 0.75kg

• BF-HPR60/HPS60-L2 Weight: 0.96kg

Wires Connection: